Common:
- add uevents for VM creation/destruction
- annotate and properly access RCU-protected objects
s390:
- rename IOCTL added in the first v4.13 merge
x86:
- emulate VMLOAD VMSAVE feature in SVM
- support paravirtual asynchronous page fault while nested
- add Hyper-V userspace interfaces for better migration
- improve master clock corner cases
- extend internal error reporting after EPT misconfig
- correct single-stepping of emulated instructions in SVM
- handle MCE during VM entry
- fix nVMX VM entry checks and nVMX VMCS shadowing
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Merge tag 'kvm-4.13-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull more KVM updates from Radim Krčmář:
"Second batch of KVM updates for v4.13
Common:
- add uevents for VM creation/destruction
- annotate and properly access RCU-protected objects
s390:
- rename IOCTL added in the first v4.13 merge
x86:
- emulate VMLOAD VMSAVE feature in SVM
- support paravirtual asynchronous page fault while nested
- add Hyper-V userspace interfaces for better migration
- improve master clock corner cases
- extend internal error reporting after EPT misconfig
- correct single-stepping of emulated instructions in SVM
- handle MCE during VM entry
- fix nVMX VM entry checks and nVMX VMCS shadowing"
* tag 'kvm-4.13-2' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (28 commits)
kvm: x86: hyperv: make VP_INDEX managed by userspace
KVM: async_pf: Let guest support delivery of async_pf from guest mode
KVM: async_pf: Force a nested vmexit if the injected #PF is async_pf
KVM: async_pf: Add L1 guest async_pf #PF vmexit handler
KVM: x86: Simplify kvm_x86_ops->queue_exception parameter list
kvm: x86: hyperv: add KVM_CAP_HYPERV_SYNIC2
KVM: x86: make backwards_tsc_observed a per-VM variable
KVM: trigger uevents when creating or destroying a VM
KVM: SVM: Enable Virtual VMLOAD VMSAVE feature
KVM: SVM: Add Virtual VMLOAD VMSAVE feature definition
KVM: SVM: Rename lbr_ctl field in the vmcb control area
KVM: SVM: Prepare for new bit definition in lbr_ctl
KVM: SVM: handle singlestep exception when skipping emulated instructions
KVM: x86: take slots_lock in kvm_free_pit
KVM: s390: Fix KVM_S390_GET_CMMA_BITS ioctl definition
kvm: vmx: Properly handle machine check during VM-entry
KVM: x86: update master clock before computing kvmclock_offset
kvm: nVMX: Shadow "high" parts of shadowed 64-bit VMCS fields
kvm: nVMX: Fix nested_vmx_check_msr_bitmap_controls
kvm: nVMX: Validate the I/O bitmaps on nested VM-entry
...
Add fallback compatibility string for R-Car Gen 2 and 3.
In the case of Renesas R-Car hardware we know that there are generations of
SoCs, e.g. Gen 1 and 2. But beyond that its not clear what the relationship
between IP blocks might be. For example, I believe that r8a7790 is older
than r8a7791 but that doesn't imply that the latter is a descendant of the
former or vice versa.
We can, however, by examining the documentation and behaviour of the
hardware at run-time observe that the current driver implementation appears
to be compatible with the IP blocks on SoCs within a given generation.
For the above reasons and convenience when enabling new SoCs a
per-generation fallback compatibility string scheme being adopted for
drivers for Renesas SoCs.
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Merge even more updates from Andrew Morton:
- a few leftovers
- fault-injector rework
- add a module loader test driver
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
kmod: throttle kmod thread limit
kmod: add test driver to stress test the module loader
MAINTAINERS: give kmod some maintainer love
xtensa: use generic fb.h
fault-inject: add /proc/<pid>/fail-nth
fault-inject: simplify access check for fail-nth
fault-inject: make fail-nth read/write interface symmetric
fault-inject: parse as natural 1-based value for fail-nth write interface
fault-inject: automatically detect the number base for fail-nth write interface
kernel/watchdog.c: use better pr_fmt prefix
MAINTAINERS: move the befs tree to kernel.org
lib/atomic64_test.c: add a test that atomic64_inc_not_zero() returns an int
mm: fix overflow check in expand_upwards()
fail-nth interface is only created in /proc/self/task/<current-tid>/.
This change also adds it in /proc/<pid>/.
This makes shell based tool a bit simpler.
$ bash -c "builtin echo 100 > /proc/self/fail-nth && exec ls /"
Link: http://lkml.kernel.org/r/1491490561-10485-6-git-send-email-akinobu.mita@gmail.com
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The read interface for fail-nth looks a bit odd. Read from this file
returns "NYYYY..." or "YYYYY..." (this makes me surprise when cat this
file). Because there is no EOF condition. The first character
indicates current->fail_nth is zero or not, and then current->fail_nth
is reset to zero.
Just returning task->fail_nth value is more natural to understand.
Link: http://lkml.kernel.org/r/1491490561-10485-4-git-send-email-akinobu.mita@gmail.com
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The value written to fail-nth file is parsed as 0-based. Parsing as
one-based is more natural to understand and it enables to cancel the
previous setup by simply writing '0'.
This change also converts task->fail_nth from signed to unsigned int.
Link: http://lkml.kernel.org/r/1491490561-10485-3-git-send-email-akinobu.mita@gmail.com
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
this different kind of NTB HW, some style fixes (per Greg KH
recommendation), and some ntb_test tweaks.
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Merge tag 'ntb-4.13' of git://github.com/jonmason/ntb
Pull NTB updates from Jon Mason:
"The major change in the series is a rework of the NTB infrastructure
to all for IDT hardware to be supported (and resulting fallout from
that). There are also a few clean-ups, etc.
New IDT NTB driver and changes to the NTB infrastructure to allow for
this different kind of NTB HW, some style fixes (per Greg KH
recommendation), and some ntb_test tweaks"
* tag 'ntb-4.13' of git://github.com/jonmason/ntb:
ntb_netdev: set the net_device's parent
ntb: Add error path/handling to Debug FS entry creation
ntb: Add more debugfs support for ntb_perf testing options
ntb: Remove debug-fs variables from the context structure
ntb: Add a module option to control affinity of DMA channels
NTB: Add IDT 89HPESxNTx PCIe-switches support
ntb_hw_intel: Style fixes: open code macros that just obfuscate code
ntb_hw_amd: Style fixes: open code macros that just obfuscate code
NTB: Add ntb.h comments
NTB: Add PCIe Gen4 link speed
NTB: Add new Memory Windows API documentation
NTB: Add Messaging NTB API
NTB: Alter Scratchpads API to support multi-ports devices
NTB: Alter MW API to support multi-ports devices
NTB: Alter link-state API to support multi-port devices
NTB: Add indexed ports NTB API
NTB: Make link-state API being declared first
NTB: ntb_test: add parameter for doorbell bitmask
NTB: ntb_test: modprobe on remote host
The notes at the end of this file start with a blank space,
instead of a blank line, violating ReST format.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different format. Some
doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- adjust identation of titles;
- mark ascii artwork as a literal block;
- adjust references.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Comment the internal index;
- Use :Date: and :Author: for authorship;
- Mark titles;
- Mark literal blocks;
- Adjust witespaces;
- Mark notes;
- Use table notation for the existing tables.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx.
Currently, the document is completely unformatted. Add
titles, do indentation, mark literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use right marks for titles;
- Use authorship marks;
- Mark literals and literal blocks;
- Use autonumbered list for references.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use marks for titles;
- Adjust indentation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Adjust indentation;
- Mark authorship;
- Comment internal contents table;
- Mark literal blocks;
- Don't use all-upercase titles.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- adjust title marks;
- use footnote marks;
- mark literal blocks;
- adjust identation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
In this specific document, the title, copyright and authorship
are added as if it were a C file!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- convert document preambule to the proper format;
- mark literal blocks;
- adjust identation;
- use numbered lists for references.
Reviewed by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- promote document title one level;
- use markups for authorship and put it at the beginning;
- mark literal blocks;
- adjust identation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- promote document title one level;
- mark literal blocks;
- move authorship to the beginning of the file and use markups.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use standard notation for titles;
- Use the note mark;
- mark literal blocks;
- adjust identation;
- mark the table.
Acked-By: Martin Mares <mj@ucw.cz>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark titles;
- Add a warning mark;
- Mark literals and literal blocks;
- Adjust identation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add a title for the document.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- adjust document title;
- use the copyright markup.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark titles;
- Mark literal blocks;
- Use :Author: for authorship;
- Don't sumerate chapters;
- Adjust identation.
NOTE:
This file has actually two documents inside it, the first
one describing siphash, the second one describing halfsiphash.
It is likely a good idea to split them when it gets moved to
security/ (which is where it probably belongs).
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx.
In this case, just adding a title is enough.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark document title;
- use :Author: and :Date: for authorship;
- adjust notation for literals and bold;
- mark literal blocks;
- adjust identation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark document and chapter titles;
- mark notes;
- mark literal blocks;
- adjust identation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- add a title for the document;
- mark literal blocks;
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- promote document title;
- use :Author: for authorship;
- mark literal blocks;
- add blank lines.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark titles;
- comment contents index;
- mark literal blocks;
- adjust identation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark document and section titles;
- adjust identation;
- mark literal blocks
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark document title;
- Use :Author: for authorship;
- mark a sub-section title as such;
- mark literal blocks;
- adjust identation where needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- add a title for the document;
- add markups for section titles;
- move authorship to the beginning and use :Author:;
- use right markup for tables;
- mark literals and literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark titles;
- mark literal blocks;
- adjust identation where needed;
- use :Author: for authorship.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use a markup for document title;
- use :Author: and :Last updated: for authorship;
- adjust whitespaces where needed;
- mark literal blocks;
- fix a few subtitle markups.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx.
This document requires just minor adjustments to match
the standard documentation style:
- promote document name;
- remove extra collons on some chapter titles;
- use "-" for a bulleted list.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark titles;
- use :Author: for authorship;
- mark literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
This document is already adopting the standard format,
with a single exception: we're using this convention
for the document title:
===
foo
===
So, adjust the title of this document to follow the
standard.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. This one uses a man-page like approach.
Change its representation to be closer to the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark titles;
- Mark literals and literal blocks;
- Adjust identation.
Still, the best would be to move its contents to kernel-docs.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark document title;
- mark literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark the document title;
- mark the table as such.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx.
This file is using some other markup notation (likely, markdown).
Convert it to the adopted standard:
- Adjust the header level markup;
- Adjust identation for debugfs files and module parameters.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This file is almost in the standard format we're adopting for
other documentation text files. Yet, it use upper case on
titles.
So, in order to uniform how chapter names, adjust caps on
titles.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Adjust identation for main title;
- fix level for chapter titles;
- use ".. important::" tag for an important note;
- use the right notation for paragraph auto-numbering "(#)";
- Fix footnotes syntax;
- fix one literal var to use the right ReST tag.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Adjust identations;
- Remove title numbering;
- mark literal blocks;
- comment its TOC.
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use :Created: and :Updated: for the timestamps;
- comment its internal index;
- adjust titles and use proper markup;
- Whitespace fixes;
- Use cross references where needed;
- Use bulleted lists where needed;
- mark literal blocks;
- Use the ReST notation for a table.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add markups for section titles;
- Use :Author: for authorship;
- Mark literal block as such and ident it.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add markups for section titles;
- mark literal blocks;
- use ".. important::" for an important note.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx.
This file is almost at ReST format. Just one title needs
to be adjusted, in order to follow the standard.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Reformat its title;
- Use :Author: and :Last Updated: for authorship
- Use note markup;
- Reformat table to match ReST standard;
- Use bulleted lists where needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- add a title for the document and section titles;
- move authorship information to the beginning and use
:Author:
- mark literal blocks as such and ident them if needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- comment the contents;
- add proper markups for titles;
- mark literal blocks as such;
- use :Author: for authorship;
- use the right markups for footnotes;
- escape some literals that would otherwise cause problems;
- fix identation and add blank lines where needed.
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add markups for titles;
- mark literal blocks as such;
- add needed whitespace/blank lines;
- use :Author: and :Last updated: for authorship.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use title markups;
- use "-" for bulletted lists;
- Split Name/Purpose on two lines, in order to make visually
easier to read (in text format), and to bold the title
(on ReST output)
- Add blank lines to split bulleted lists;
- use sub-titles for the several kthread softirq types;
- mark one literal var with asterisk as such, in order to
avoid an error warning on Sphinx.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use the main title standard for this document;
- replace _foo_ by **foo** for emphasis;
- mark literal blocks as such.
Acked-by: William Breathitt Gray <vilhelm.gray@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This simple document only needs to promote its title to be
using the standard we're using for document texts.
Yet, IMHO, it would be worth merging this file with
Documentation/pnp.txt in the future.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This simple document only needs a markup for its title to be
using the standard we're adopting for text documents.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
There isn't much to be done here: just mark the document
title as such and add a :Author:.
While here, use upper case at the beginning of a few paragraphs
that start with lower case.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use proper markups for titles;
- mark literal blocks as such;
- add blank lines where needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add a title for the document;
- mark literal blocks as such;
- use a bulleted list for changelog.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- fix document type;
- add missing markups for subitems;
- mark literal blocks;
- add whitespaces and blank lines where needed;
- use bulleted list markups where neded.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Everything there that it is said for 2.6 also applies on
current 4.x Kernels. So, update the information there.
While here, use ``foo`` for literals.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- promote main title level;
- mark literal blocks as such;
- Add blank lines to avoid Sphinx errors.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add a title;
- mark literal-blocks as such.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add a title for the document and for API chapter;
- mark literal blocks;
- Adjust whitespacing.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
This file is almost in the right format. It only needed to
convert a list to bulleted list and to use the right markup
for literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- promote main title one level;
- fix the bulleted list markup;
- use bulletted list markup where needed;
- add whitespaces where needed;
- mark literal blocks;
- remove extra ":" after section titles.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Adjust title markups;
- remove explicit numeration from titles;
- mark literal blocks as such;
- replace _foo_ by **foo** for emphasis;
- adjust whitespaces and add blank lines where needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use proper markups for titles;
- adjust section identation;
- use proper markup for notes and fix it to properly show the
numbered list.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use a markup for the title;
- use :Author: and :Last updated: markups at the beginning with
authorship info;
- use proper markups for the lists.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- promote main title;
- use the right markup for footnotes;
- use bold markup for files name;
- identify literal blocks;
- add blank lines to avoid Sphinx to complain;
- remove numeration from titles.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- promote level for the document title;
- mark literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use :Author: and :Updated: markups;
- use proper markup for the document title;
- mark the literal-blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use ReST notation for titles;
- identify literal blocks;
- use :Author: for document authorship;
- use the proper notation for tables;
- adjust whitespaces where needed.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use proper markups for titles;
- identify literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark and adjust titles;
- Mark and indent literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- use proper markups for titles;
- use :Author: for authorship;
- identify the literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
This file is almost on the standard format. All it needs
to be parsed by Sphinx is to fix its main title and add
a few blank lines.
Yet, it is worth to replace NOTE: by the corresponding
ReST markup.
While here, remove the extra "---" from a subtitle.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark titles;
- Mark literal blocks;
- Mark some literals that would otherwise produce warnings;
- Mark authorship.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Fix some title marks to match ReST;
- use :Author: for author name;
- foo_ is an hyperlink. Get rid of it;
- Mark literal blocks as such;
- Use tables on some places that are almost using the
table format.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- comment the internal index;
- use the proper markups for titles;
- mark literal blocks.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark titles;
- Mark literal blocks;
- Mark table.
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add a title for the document;
- Mark literal blocks.
While here, replace a comma by a dot at the end of a paragraph.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add a title for the document;
- mark literals;
- use table markup for existing table.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- mark literals;
- Adjust document title;
- Use a list for references.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use section/title markups;
- Use :Author: for authorship;
- Mark literals and literal blocks;
- Mark tables;
- Use ReST notation for footnotes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Mark titles with ReST notation;
- comment the contents table;
- Use :Author: tag for authorship;
- mark literal blocks as such;
- use valid numbered list markups;
- Don't capitalize titles.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Adjust the title format;
- use :Author: for author's name;
- mark literals as such;
- use note and important notation.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Move author info to the beginning of file and use :Author:
- use warning/note annotation;
- mark literal blocks as such;
- Add a title for the document;
- use **emphasis** instead of _emphasis_.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Use the right notation for titles;
- Use a list for image names;
- Use literal blocks where needed;
- Whitespace fixes.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Adjust titles to match the convention;
- use a literal block for ascii artwork.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Each text file under Documentation follows a different
format. Some doesn't even have titles!
Change its representation to follow the adopted standard,
using ReST markups for it to be parseable by Sphinx:
- Add a title for the document;
- Use a list for the listed URLs;
- mark literal blocks;
- adjust whitespaces;
- Don't capitalize section titles.
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Hyper-V identifies vCPUs by Virtual Processor Index, which can be
queried via HV_X64_MSR_VP_INDEX msr. It is defined by the spec as a
sequential number which can't exceed the maximum number of vCPUs per VM.
APIC ids can be sparse and thus aren't a valid replacement for VP
indices.
Current KVM uses its internal vcpu index as VP_INDEX. However, to make
it predictable and persistent across VM migrations, the userspace has to
control the value of VP_INDEX.
This patch achieves that, by storing vp_index explicitly on vcpu, and
allowing HV_X64_MSR_VP_INDEX to be set from the host side. For
compatibility it's initialized to KVM vcpu index. Also a few variables
are renamed to make clear distinction betweed this Hyper-V vp_index and
KVM vcpu_id (== APIC id). Besides, a new capability,
KVM_CAP_HYPERV_VP_INDEX, is added to allow the userspace to skip
attempting msr writes where unsupported, to avoid spamming error logs.
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Adds another flag bit (bit 2) to MSR_KVM_ASYNC_PF_EN. If bit 2 is 1,
async page faults are delivered to L1 as #PF vmexits; if bit 2 is 0,
kvm_can_do_async_pf returns 0 if in guest mode.
This is similar to what svm.c wanted to do all along, but it is only
enabled for Linux as L1 hypervisor. Foreign hypervisors must never
receive async page faults as vmexits, because they'd probably be very
confused about that.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Signed-off-by: Wanpeng Li <wanpeng.li@hotmail.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Provide more specific examples of keyring restrictions as applied to
X.509 signature chain verification.
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>
removal of kernel/rcu/srcu.c. Also correct a stray pointer in
memory-barriers.txt.
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Merge tag '4.13-fixes' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
"A set of fixes for various warnings, including the one caused by the
removal of kernel/rcu/srcu.c. Also correct a stray pointer in
memory-barriers.txt"
* tag '4.13-fixes' of git://git.lwn.net/linux:
kokr/memory-barriers.txt: Fix obsolete link to atomic_ops.txt
memory-barriers.txt: Fix broken link to atomic_ops.txt
docs: Turn off section numbering for the input docs
docs: Include uaccess docs from the right file
docs: Do not include from kernel/rcu/srcu.c
- Show the tgid mappings for user space trace tools to use
- Fix and optimize the comm and tgid cache recording
- Sanitize derived kprobe names
- Ftrace selftest updates
- trace file header fix
- Update of Documentation/trace/ftrace.txt
- Compiler warning fixes
- Fix possible uninitialized variable
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Merge tag 'trace-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull more tracing updates from Steven Rostedt:
"A few more minor updates:
- Show the tgid mappings for user space trace tools to use
- Fix and optimize the comm and tgid cache recording
- Sanitize derived kprobe names
- Ftrace selftest updates
- trace file header fix
- Update of Documentation/trace/ftrace.txt
- Compiler warning fixes
- Fix possible uninitialized variable"
* tag 'trace-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ftrace: Fix uninitialized variable in match_records()
ftrace: Remove an unneeded NULL check
ftrace: Hide cached module code for !CONFIG_MODULES
tracing: Do note expose stack_trace_filter without DYNAMIC_FTRACE
tracing: Update Documentation/trace/ftrace.txt
tracing: Fixup trace file header alignment
selftests/ftrace: Add a testcase for kprobe event naming
selftests/ftrace: Add a test to probe module functions
selftests/ftrace: Update multiple kprobes test for powerpc
trace/kprobes: Sanitize derived event names
tracing: Attempt to record other information even if some fail
tracing: Treat recording tgid for idle task as a success
tracing: Treat recording comm for idle task as a success
tracing: Add saved_tgids file to show cached pid to tgid mappings
Merge yet more updates from Andrew Morton:
- various misc things
- kexec updates
- sysctl core updates
- scripts/gdb udpates
- checkpoint-restart updates
- ipc updates
- kernel/watchdog updates
- Kees's "rough equivalent to the glibc _FORTIFY_SOURCE=1 feature"
- "stackprotector: ascii armor the stack canary"
- more MM bits
- checkpatch updates
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (96 commits)
writeback: rework wb_[dec|inc]_stat family of functions
ARM: samsung: usb-ohci: move inline before return type
video: fbdev: omap: move inline before return type
video: fbdev: intelfb: move inline before return type
USB: serial: safe_serial: move __inline__ before return type
drivers: tty: serial: move inline before return type
drivers: s390: move static and inline before return type
x86/efi: move asmlinkage before return type
sh: move inline before return type
MIPS: SMP: move asmlinkage before return type
m68k: coldfire: move inline before return type
ia64: sn: pci: move inline before type
ia64: move inline before return type
FRV: tlbflush: move asmlinkage before return type
CRIS: gpio: move inline before return type
ARM: HP Jornada 7XX: move inline before return type
ARM: KVM: move asmlinkage before type
checkpatch: improve the STORAGE_CLASS test
mm, migration: do not trigger OOM killer when migrating memory
drm/i915: use __GFP_RETRY_MAYFAIL
...
Subsystem:
- expose non volatile RAM using nvmem instead of open coding in many
drivers. Unfortunately, this option has to be enabled by default to not
break existing users.
- rtctest can now test for cutoff dates, showing when an RTC will start
failing to properly save time and date.
- new RTC registration functions to remove race conditions in drivers
Newly supported RTCs:
- Broadcom STB wake-timer
- Epson RX8130CE
- Maxim IC DS1308
- STMicroelectronics STM32H7
Drivers:
- ds1307: use regmap, use nvmem, more cleanups
- ds3232: temperature reading support
- gemini: renamed to ftrtc010
- m41t80: use CCF to expose the clock
- rv8803: use nvmem
- s3c: many cleanups
- st-lpc: fix y2106 bug
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Merge tag 'rtc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"Here is the pull-request for the RTC subsystem for 4.13.
Subsystem:
- expose non volatile RAM using nvmem instead of open coding in many
drivers. Unfortunately, this option has to be enabled by default to
not break existing users.
- rtctest can now test for cutoff dates, showing when an RTC will
start failing to properly save time and date.
- new RTC registration functions to remove race conditions in drivers
Newly supported RTCs:
- Broadcom STB wake-timer
- Epson RX8130CE
- Maxim IC DS1308
- STMicroelectronics STM32H7
Drivers:
- ds1307: use regmap, use nvmem, more cleanups
- ds3232: temperature reading support
- gemini: renamed to ftrtc010
- m41t80: use CCF to expose the clock
- rv8803: use nvmem
- s3c: many cleanups
- st-lpc: fix y2106 bug"
* tag 'rtc-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (51 commits)
rtc: Remove wrong deprecation comment
nvmem: include linux/err.h from header
rtc: st-lpc: make it robust against y2038/2106 bug
rtc: rtctest: add check for problematic dates
tools: timer: add rtctest_setdate
rtc: ds1307: remove ds1307_remove
rtc: ds1307: use generic nvmem
rtc: ds1307: switch to rtc_register_device
rtc: rv8803: remove rv8803_remove
rtc: rv8803: use generic nvmem support
rtc: rv8803: switch to rtc_register_device
rtc: add generic nvmem support
rtc: at91rm9200: remove race condition
rtc: introduce new registration method
rtc: class separate id allocation from registration
rtc: class separate device allocation from registration
rtc: stm32: add STM32H7 RTC support
dt-bindings: rtc: stm32: add support for STM32H7
rtc: ds1307: add ds1308 variant
rtc: ds3232: add temperature support
...
General updates
* Cleanups and additional flash support for "dataflash" driver
* new driver for mchp23k256 SPI SRAM device
* improve handling of MTDs without eraseblocks (i.e., MTD_NO_ERASE)
* refactor and improve "sub-partition" handling with TRX partition
parser; partitions can now be created as sub-partitions of another
partition
SPI NOR updates, from Cyrille Pitchen and Marek Vasut:
* introduce support to the SPI 1-2-2 and 1-4-4 protocols.
* introduce support to the Double Data Rate (DDR) mode.
* introduce support to the Octo SPI protocols.
* add support to new memory parts for Spansion, Macronix and Winbond.
* add fixes for the Aspeed, STM32 and Cadence QSPI controler drivers.
* clean up the st_spi_fsm driver.
NAND updates, from Boris Brezillon:
* addition of on-die ECC support to Micron driver
* addition of helpers to help drivers choose most appropriate ECC
settings
* deletion of dead-code (cached programming and ->errstat() hook)
* make sure drivers that do not support the SET/GET FEATURES command
return ENOTSUPP use a dummy ->set/get_features implementation
returning -ENOTSUPP (required for Micron on-die ECC)
* change the semantic of ecc->write_page() for drivers setting the
NAND_ECC_CUSTOM_PAGE_ACCESS flag
* support exiting 'GET STATUS' command in default ->cmdfunc()
implementations
* change the prototype of ->setup_data_interface()
A bunch of driver related changes:
* various cleanup, fixes and improvements of the MTK driver
* OMAP DT bindings fixes
* support for ->setup_data_interface() in the fsmc driver
* support for imx7 in the gpmi driver
* finalization of the denali driver rework (thanks to Masahiro for the
work he's done on this driver)
* fix "bitflips in erased pages" handling in the ifc driver
* addition of PM ops and dynamic timing configuration to the atmel
driver
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Merge tag 'for-linus-20170713' of git://git.infradead.org/linux-mtd
Pull MTD updates from Brian Norris:
"General updates:
- Cleanups and additional flash support for "dataflash" driver
- new driver for mchp23k256 SPI SRAM device
- improve handling of MTDs without eraseblocks (i.e., MTD_NO_ERASE)
- refactor and improve "sub-partition" handling with TRX partition
parser; partitions can now be created as sub-partitions of another
partition
SPINOR updates, from Cyrille Pitchen and Marek Vasut:
- introduce support to the SPI 1-2-2 and 1-4-4 protocols.
- introduce support to the Double Data Rate (DDR) mode.
- introduce support to the Octo SPI protocols.
- add support to new memory parts for Spansion, Macronix and Winbond.
- add fixes for the Aspeed, STM32 and Cadence QSPI controler drivers.
- clean up the st_spi_fsm driver.
NAND updates, from Boris Brezillon:
- addition of on-die ECC support to Micron driver
- addition of helpers to help drivers choose most appropriate ECC
settings
- deletion of dead-code (cached programming and ->errstat() hook)
- make sure drivers that do not support the SET/GET FEATURES command
return ENOTSUPP use a dummy ->set/get_features implementation
returning -ENOTSUPP (required for Micron on-die ECC)
- change the semantic of ecc->write_page() for drivers setting the
NAND_ECC_CUSTOM_PAGE_ACCESS flag
- support exiting 'GET STATUS' command in default ->cmdfunc()
implementations
- change the prototype of ->setup_data_interface()
A bunch of driver related changes:
- various cleanup, fixes and improvements of the MTK driver
- OMAP DT bindings fixes
- support for ->setup_data_interface() in the fsmc driver
- support for imx7 in the gpmi driver
- finalization of the denali driver rework (thanks to Masahiro for
the work he's done on this driver)
- fix "bitflips in erased pages" handling in the ifc driver
- addition of PM ops and dynamic timing configuration to the atmel
driver"
* tag 'for-linus-20170713' of git://git.infradead.org/linux-mtd: (118 commits)
Documentation: ABI: mtd: describe "offset" more precisely
mtd: Fix check in mtd_unpoint()
mtd: nand: mtk: release lock on error path
mtd: st_spi_fsm: remove SPINOR_OP_RDSR2 and use SPINOR_OP_RDCR instead
mtd: spi-nor: cqspi: remove duplicate const
mtd: spi-nor: Add support for Spansion S25FL064L
mtd: spi-nor: Add support for mx66u51235f
mtd: nand: mtk: add ->setup_data_interface() hook
mtd: nand: mtk: remove unneeded mtk_ecc_hw_init from mtk_ecc_resume
mtd: nand: mtk: remove unneeded mtk_nfc_hw_init from mtk_nfc_resume
mtd: nand: mtk: disable ecc irq when writing page with hwecc
mtd: nand: mtk: fix incorrect register setting order about ecc irq
mtd: partitions: fixup some allocate_partition() whitespace
mtd: parsers: trx: fix pr_err format for printing offset
MAINTAINERS: Update SPI NOR subsystem git repositories
mtd: extract TRX parser out of bcm47xxpart into a separated module
mtd: partitions: add support for partition parsers
mtd: partitions: add support for subpartitions
mtd: partitions: rename "master" to the "parent" where appropriate
mtd: partitions: remove sysfs files when deleting all master's partitions
...
This release cycle's changes include mostly updates and cleanups to
existing drivers along with a few cleanups to the core, documentation
and device tree bindings.
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Merge tag 'pwm/for-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm updates from Thierry Reding:
"This release cycle's changes include mostly updates and cleanups to
existing drivers along with a few cleanups to the core, documentation
and device tree bindings"
* tag 'pwm/for-4.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: cros-ec: Fix transposed param settings
pwm: meson: Improve PWM calculation precision
dt-bindings: pwm: meson: Add compatible for gxbb ao PWMs
pwm: meson: Add compatible for the gxbb ao PWMs
pwm: sun4i: Drop legacy callbacks
pwm: sun4i: Switch to atomic PWM
pwm: sun4i: Improve hardware read out
pwm: hibvt: Constify hibvt_pwm_ops
pwm: Silently error out on EPROBE_DEFER
pwm: Standardize document format
pwm: bfin: Remove unneeded error message
dt-bindings: pwm: Update STM32 timers clock names
dt-bindings: pwm: Add R-Car M3-W device tree bindings
pwm: tegra: Set maximum pwm clock source per SoC tapeout
So far Linux supported only two levels of MTD devices so we didn't need
a very precise description for this sysfs file. With commit
97519dc52b ("mtd: partitions: add support for subpartitions") there
is support for a tree structure so we should have more precise
description. Using "parent" and "flash device" makes it more accurate.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>
There is a flaw in the Hyper-V SynIC implementation in KVM: when message
page or event flags page is enabled by setting the corresponding msr,
KVM zeroes it out. This is problematic because on migration the
corresponding MSRs are loaded on the destination, so the content of
those pages is lost.
This went unnoticed so far because the only user of those pages was
in-KVM hyperv synic timers, which could continue working despite that
zeroing.
Newer QEMU uses those pages for Hyper-V VMBus implementation, and
zeroing them breaks the migration.
Besides, in newer QEMU the content of those pages is fully managed by
QEMU, so zeroing them is undesirable even when writing the MSRs from the
guest side.
To support this new scheme, introduce a new capability,
KVM_CAP_HYPERV_SYNIC2, which, when enabled, makes sure that the synic
pages aren't zeroed out in KVM.
Signed-off-by: Roman Kagan <rkagan@virtuozzo.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
Pull networking fixes from David Miller:
1) Fix 64-bit division in mlx5 IPSEC offload support, from Ilan Tayari
and Arnd Bergmann.
2) Fix race in statistics gathering in bnxt_en driver, from Michael
Chan.
3) Can't use a mutex in RCU reader protected section on tap driver, from
Cong WANG.
4) Fix mdb leak in bridging code, from Eduardo Valentin.
5) Fix free of wrong pointer variable in nfp driver, from Dan Carpenter.
6) Buffer overflow in brcmfmac driver, from Arend van SPriel.
7) ioremap_nocache() return value needs to be checked in smsc911x
driver, from Alexey Khoroshilov.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (34 commits)
net: stmmac: revert "support future possible different internal phy mode"
sfc: don't read beyond unicast address list
datagram: fix kernel-doc comments
socket: add documentation for missing elements
smsc911x: Add check for ioremap_nocache() return code
brcmfmac: fix possible buffer overflow in brcmf_cfg80211_mgmt_tx()
net: hns: Bugfix for Tx timeout handling in hns driver
net: ipmr: ipmr_get_table() returns NULL
nfp: freeing the wrong variable
mlxsw: spectrum_switchdev: Check status of memory allocation
mlxsw: spectrum_switchdev: Remove unused variable
mlxsw: spectrum_router: Fix use-after-free in route replace
mlxsw: spectrum_router: Add missing rollback
samples/bpf: fix a build issue
bridge: mdb: fix leak on complete_info ptr on fail path
tap: convert a mutex to a spinlock
cxgb4: fix BUG() on interrupt deallocating path of ULD
qed: Fix printk option passed when printing ipv6 addresses
net: Fix minor code bug in timestamping.txt
net: stmmac: Make 'alloc_dma_[rt]x_desc_resources()' look even closer
...
__GFP_REPEAT was designed to allow retry-but-eventually-fail semantic to
the page allocator. This has been true but only for allocations
requests larger than PAGE_ALLOC_COSTLY_ORDER. It has been always
ignored for smaller sizes. This is a bit unfortunate because there is
no way to express the same semantic for those requests and they are
considered too important to fail so they might end up looping in the
page allocator for ever, similarly to GFP_NOFAIL requests.
Now that the whole tree has been cleaned up and accidental or misled
usage of __GFP_REPEAT flag has been removed for !costly requests we can
give the original flag a better name and more importantly a more useful
semantic. Let's rename it to __GFP_RETRY_MAYFAIL which tells the user
that the allocator would try really hard but there is no promise of a
success. This will work independent of the order and overrides the
default allocator behavior. Page allocator users have several levels of
guarantee vs. cost options (take GFP_KERNEL as an example)
- GFP_KERNEL & ~__GFP_RECLAIM - optimistic allocation without _any_
attempt to free memory at all. The most light weight mode which even
doesn't kick the background reclaim. Should be used carefully because
it might deplete the memory and the next user might hit the more
aggressive reclaim
- GFP_KERNEL & ~__GFP_DIRECT_RECLAIM (or GFP_NOWAIT)- optimistic
allocation without any attempt to free memory from the current
context but can wake kswapd to reclaim memory if the zone is below
the low watermark. Can be used from either atomic contexts or when
the request is a performance optimization and there is another
fallback for a slow path.
- (GFP_KERNEL|__GFP_HIGH) & ~__GFP_DIRECT_RECLAIM (aka GFP_ATOMIC) -
non sleeping allocation with an expensive fallback so it can access
some portion of memory reserves. Usually used from interrupt/bh
context with an expensive slow path fallback.
- GFP_KERNEL - both background and direct reclaim are allowed and the
_default_ page allocator behavior is used. That means that !costly
allocation requests are basically nofail but there is no guarantee of
that behavior so failures have to be checked properly by callers
(e.g. OOM killer victim is allowed to fail currently).
- GFP_KERNEL | __GFP_NORETRY - overrides the default allocator behavior
and all allocation requests fail early rather than cause disruptive
reclaim (one round of reclaim in this implementation). The OOM killer
is not invoked.
- GFP_KERNEL | __GFP_RETRY_MAYFAIL - overrides the default allocator
behavior and all allocation requests try really hard. The request
will fail if the reclaim cannot make any progress. The OOM killer
won't be triggered.
- GFP_KERNEL | __GFP_NOFAIL - overrides the default allocator behavior
and all allocation requests will loop endlessly until they succeed.
This might be really dangerous especially for larger orders.
Existing users of __GFP_REPEAT are changed to __GFP_RETRY_MAYFAIL
because they already had their semantic. No new users are added.
__alloc_pages_slowpath is changed to bail out for __GFP_RETRY_MAYFAIL if
there is no progress and we have already passed the OOM point.
This means that all the reclaim opportunities have been exhausted except
the most disruptive one (the OOM killer) and a user defined fallback
behavior is more sensible than keep retrying in the page allocator.
[akpm@linux-foundation.org: fix arch/sparc/kernel/mdesc.c]
[mhocko@suse.com: semantic fix]
Link: http://lkml.kernel.org/r/20170626123847.GM11534@dhcp22.suse.cz
[mhocko@kernel.org: address other thing spotted by Vlastimil]
Link: http://lkml.kernel.org/r/20170626124233.GN11534@dhcp22.suse.cz
Link: http://lkml.kernel.org/r/20170623085345.11304-3-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Alex Belits <alex.belits@cavium.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: David Daney <david.daney@cavium.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: NeilBrown <neilb@suse.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add /proc/self/task/<current-tid>/fail-nth file that allows failing
0-th, 1-st, 2-nd and so on calls systematically.
Excerpt from the added documentation:
"Write to this file of integer N makes N-th call in the current task
fail (N is 0-based). Read from this file returns a single char 'Y' or
'N' that says if the fault setup with a previous write to this file
was injected or not, and disables the fault if it wasn't yet injected.
Note that this file enables all types of faults (slab, futex, etc).
This setting takes precedence over all other generic settings like
probability, interval, times, etc. But per-capability settings (e.g.
fail_futex/ignore-private) take precedence over it. This feature is
intended for systematic testing of faults in a single system call. See
an example below"
Why add a new setting:
1. Existing settings are global rather than per-task.
So parallel testing is not possible.
2. attr->interval is close but it depends on attr->count
which is non reset to 0, so interval does not work as expected.
3. Trying to model this with existing settings requires manipulations
of all of probability, interval, times, space, task-filter and
unexposed count and per-task make-it-fail files.
4. Existing settings are per-failure-type, and the set of failure
types is potentially expanding.
5. make-it-fail can't be changed by unprivileged user and aggressive
stress testing better be done from an unprivileged user.
Similarly, this would require opening the debugfs files to the
unprivileged user, as he would need to reopen at least times file
(not possible to pre-open before dropping privs).
The proposed interface solves all of the above (see the example).
We want to integrate this into syzkaller fuzzer. A prototype has found
10 bugs in kernel in first day of usage:
https://groups.google.com/forum/#!searchin/syzkaller/%22FAULT_INJECTION%22%7Csort:relevance
I've made the current interface work with all types of our sandboxes.
For setuid the secret sauce was prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) to
make /proc entries non-root owned. So I am fine with the current
version of the code.
[akpm@linux-foundation.org: fix build]
Link: http://lkml.kernel.org/r/20170328130128.101773-1-dvyukov@google.com
Signed-off-by: Dmitry Vyukov <dvyukov@google.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Michal Hocko <mhocko@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Since it is possbile to have same number in tfd field (say file added,
closed, then nother file dup'ed to same number and added back) it is
imposible to distinguish such target files solely by their numbers.
Strictly speaking regular applications don't need to recognize these
targets at all but for checkpoint/restore sake we need to collect
targets to be able to push them back on restore stage in a proper order.
Thus lets add file position, inode and device number where this target
lays. This three fields can be used as a primary key for sorting, and
together with kcmp help CRIU can find out an exact file target (from the
whole set of processes being checkpointed).
Link: http://lkml.kernel.org/r/20170424154423.436491881@gmail.com
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Acked-by: Andrei Vagin <avagin@virtuozzo.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Pavel Emelyanov <xemul@virtuozzo.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Jason Baron <jbaron@akamai.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Minor updates in Documentation for arm64 as relocatable kernel. Also
this patch updates documentation for using uncompressed image "Image"
which is used for ARM64.
Link: http://lkml.kernel.org/r/1495104793-6563-1-git-send-email-Bharat.Bhushan@nxp.com
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: AKASHI Takahiro <takahiro.akashi@linaro.org>
Cc: Pratyush Anand <panand@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Obsolete links to atomic_ops.txt exist in ko_KR/memory-barriers.txt
though the file has moved to core-api/atomic_ops.rst. This commit fixes
the obsolete links.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Few obsolete links to atomic_ops.txt exist in memory-barriers.txt though
the file has moved to core-api/atomic_ops.rst. This commit fixes the
obsolete links.
Signed-off-by: SeongJae Park <sj38.park@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
The input docs enable section numbering at multiple levels, leading to a
lot of bright-red "nested numbered toctree" warnings in newer Sphinx
versions. Just take that directive out for now to help alleviate the
global red-pixel shortage.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Documentation/core-api/kernel-api.rst was including kerneldoc comments from
arch/x86/include/asm/uaccess_32.h, but the relevant comments moved to
.../uaccess.h some time ago. Correct the include to pick up the comments
and eliminate a warning.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Pull i2c updates from Wolfram Sang:
"This pull request contains:
- i2c core reorganization. One source file became too monolithic. It
is now split up, yet we still have the same named object as the
final output. This should ease maintenance.
- new drivers: ZTE ZX2967 family, ASPEED 24XX/25XX
- designware driver gained slave mode support
- xgene-slimpro driver gained ACPI support
- bigger overhaul for pca-platform driver
- the algo-bit module now supports messages with enforced STOP
- slightly bigger than usual set of driver updates and improvements
and with much appreciated quality assurance from Andy Shevchenko"
* 'i2c/for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (51 commits)
i2c: Provide a stub for i2c_detect_slave_mode()
i2c: designware: Let slave adapter support be optional
i2c: designware: Make HW init functions static
i2c: designware: fix spelling mistakes
i2c: pca-platform: propagate error from i2c_pca_add_numbered_bus
i2c: pca-platform: correctly set algo_data.reset_chip
i2c: acpi: Do not create i2c-clients for LNXVIDEO ACPI devices
i2c: designware: enable SLAVE in platform module
i2c: designware: add SLAVE mode functions
i2c: zx2967: drop COMPILE_TEST dependency
i2c: zx2967: always use the same device when printing errors
i2c: pca-platform: use dev_warn/dev_info instead of printk
i2c: pca-platform: use device managed allocations
i2c: pca-platform: add devicetree awareness
i2c: pca-platform: switch to struct gpio_desc
dt-bindings: add bindings for i2c-pca-platform
i2c: cadance: fix ctrl/addr reg write order
i2c: zx2967: add i2c controller driver for ZTE's zx2967 family
dt: bindings: add documentation for zx2967 family i2c controller
i2c: algo-bit: add support for I2C_M_STOP
...
This update comes with:
* Support for lockless operation in the ARM io-pgtable code.
This is an important step to solve the scalability problems in
the common dma-iommu code for ARM
* Some Errata workarounds for ARM SMMU implemenations
* Rewrite of the deferred IO/TLB flush code in the AMD IOMMU
driver. The code suffered from very high flush rates, with the
new implementation the flush rate is down to ~1% of what it
was before
* Support for amd_iommu=off when booting with kexec. Problem
here was that the IOMMU driver bailed out early without
disabling the iommu hardware, if it was enabled in the old
kernel
* The Rockchip IOMMU driver is now available on ARM64
* Align the return value of the iommu_ops->device_group
call-backs to not miss error values
* Preempt-disable optimizations in the Intel VT-d and common
IOVA code to help Linux-RT
* Various other small cleanups and fixes
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Merge tag 'iommu-updates-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull IOMMU updates from Joerg Roedel:
"This update comes with:
- Support for lockless operation in the ARM io-pgtable code.
This is an important step to solve the scalability problems in the
common dma-iommu code for ARM
- Some Errata workarounds for ARM SMMU implemenations
- Rewrite of the deferred IO/TLB flush code in the AMD IOMMU driver.
The code suffered from very high flush rates, with the new
implementation the flush rate is down to ~1% of what it was before
- Support for amd_iommu=off when booting with kexec.
The problem here was that the IOMMU driver bailed out early without
disabling the iommu hardware, if it was enabled in the old kernel
- The Rockchip IOMMU driver is now available on ARM64
- Align the return value of the iommu_ops->device_group call-backs to
not miss error values
- Preempt-disable optimizations in the Intel VT-d and common IOVA
code to help Linux-RT
- Various other small cleanups and fixes"
* tag 'iommu-updates-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (60 commits)
iommu/vt-d: Constify intel_dma_ops
iommu: Warn once when device_group callback returns NULL
iommu/omap: Return ERR_PTR in device_group call-back
iommu: Return ERR_PTR() values from device_group call-backs
iommu/s390: Use iommu_group_get_for_dev() in s390_iommu_add_device()
iommu/vt-d: Don't disable preemption while accessing deferred_flush()
iommu/iova: Don't disable preempt around this_cpu_ptr()
iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #126
iommu/arm-smmu-v3: Enable ACPI based HiSilicon CMD_PREFETCH quirk(erratum 161010701)
iommu/arm-smmu-v3: Add workaround for Cavium ThunderX2 erratum #74
ACPI/IORT: Fixup SMMUv3 resource size for Cavium ThunderX2 SMMUv3 model
iommu/arm-smmu-v3, acpi: Add temporary Cavium SMMU-V3 IORT model number definitions
iommu/io-pgtable-arm: Use dma_wmb() instead of wmb() when publishing table
iommu/io-pgtable: depend on !GENERIC_ATOMIC64 when using COMPILE_TEST with LPAE
iommu/arm-smmu-v3: Remove io-pgtable spinlock
iommu/arm-smmu: Remove io-pgtable spinlock
iommu/io-pgtable-arm-v7s: Support lockless operation
iommu/io-pgtable-arm: Support lockless operation
iommu/io-pgtable: Introduce explicit coherency
iommu/io-pgtable-arm-v7s: Refactor split_blk_unmap
...
Pull overlayfs updates from Miklos Szeredi:
"This work from Amir introduces the inodes index feature, which
provides:
- hardlinks are not broken on copy up
- infrastructure for overlayfs NFS export
This also fixes constant st_ino for samefs case for lower hardlinks"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs: (33 commits)
ovl: mark parent impure and restore timestamp on ovl_link_up()
ovl: document copying layers restrictions with inodes index
ovl: cleanup orphan index entries
ovl: persistent overlay inode nlink for indexed inodes
ovl: implement index dir copy up
ovl: move copy up lock out
ovl: rearrange copy up
ovl: add flag for upper in ovl_entry
ovl: use struct copy_up_ctx as function argument
ovl: base tmpfile in workdir too
ovl: factor out ovl_copy_up_inode() helper
ovl: extract helper to get temp file in copy up
ovl: defer upper dir lock to tempfile link
ovl: hash overlay non-dir inodes by copy up origin
ovl: cleanup bad and stale index entries on mount
ovl: lookup index entry for copy up origin
ovl: verify index dir matches upper dir
ovl: verify upper root dir matches lower root dir
ovl: introduce the inodes index dir feature
ovl: generalize ovl_create_workdir()
...
The documentation of ftrace.txt has become rather outdated. Bring it closer
to reality of todays kernel.
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Pull more block updates from Jens Axboe:
"This is a followup for block changes, that didn't make the initial
pull request. It's a bit of a mixed bag, this contains:
- A followup pull request from Sagi for NVMe. Outside of fixups for
NVMe, it also includes a series for ensuring that we properly
quiesce hardware queues when browsing live tags.
- Set of integrity fixes from Dmitry (mostly), fixing various issues
for folks using DIF/DIX.
- Fix for a bug introduced in cciss, with the req init changes. From
Christoph.
- Fix for a bug in BFQ, from Paolo.
- Two followup fixes for lightnvm/pblk from Javier.
- Depth fix from Ming for blk-mq-sched.
- Also from Ming, performance fix for mtip32xx that was introduced
with the dynamic initialization of commands"
* 'for-linus' of git://git.kernel.dk/linux-block: (44 commits)
block: call bio_uninit in bio_endio
nvmet: avoid unneeded assignment of submit_bio return value
nvme-pci: add module parameter for io queue depth
nvme-pci: compile warnings in nvme_alloc_host_mem()
nvmet_fc: Accept variable pad lengths on Create Association LS
nvme_fc/nvmet_fc: revise Create Association descriptor length
lightnvm: pblk: remove unnecessary checks
lightnvm: pblk: control I/O flow also on tear down
cciss: initialize struct scsi_req
null_blk: fix error flow for shared tags during module_init
block: Fix __blkdev_issue_zeroout loop
nvme-rdma: unconditionally recycle the request mr
nvme: split nvme_uninit_ctrl into stop and uninit
virtio_blk: quiesce/unquiesce live IO when entering PM states
mtip32xx: quiesce request queues to make sure no submissions are inflight
nbd: quiesce request queues to make sure no submissions are inflight
nvme: kick requeue list when requeueing a request instead of when starting the queues
nvme-pci: quiesce/unquiesce admin_q instead of start/stop its hw queues
nvme-loop: quiesce/unquiesce admin_q instead of start/stop its hw queues
nvme-fc: quiesce/unquiesce admin_q instead of start/stop its hw queues
...
Passing (void*)val instead of &val would make a pointer out of an integer
and cause sock_setsockopt to -EFAULT.
See tools/testing/selftests/networking/timestamping/timestamping.c
for a working example.
Cc: David S. Miller <davem@davemloft.net>
Cc: netdev@vger.kernel.org
Signed-off-by: Ahmad Fatoum <ahmad@a3f.at>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull watchdog updates from Wim Van Sebroeck:
- Add Renesas RZ/A WDT Watchdog driver
- STM32 Independent WatchDoG (IWDG) support
- UniPhier watchdog support
- Add F71868 support
- Add support for NCT6793D and NCT6795D
- dw_wdt: add reset lines support
- core: add option to avoid early handling of watchdog
- core: introduce watchdog_worker_should_ping helper
- Cleanups and improvements for sama5d4, intel-mid_wdt, s3c2410_wdt,
orion_wdt, gpio_wdt, it87_wdt, meson_wdt, davinci_wdt, bcm47xx_wdt,
zx2967_wdt, cadence_wdt
* git://www.linux-watchdog.org/linux-watchdog: (32 commits)
watchdog: introduce watchdog_worker_should_ping helper
watchdog: uniphier: add UniPhier watchdog driver
dt-bindings: watchdog: add description for UniPhier WDT controller
watchdog: cadence_wdt: make of_device_ids const.
watchdog: zx2967: constify zx2967_wdt_ops.
watchdog: bcm47xx_wdt: constify bcm47xx_wdt_hard_ops and bcm47xx_wdt_soft_ops
watchdog: davinci: Add missing clk_disable_unprepare().
watchdog: davinci: Handle return value of clk_prepare_enable
watchdog: meson: Handle return value of clk_prepare_enable
watchdog: it87: Add support for various Super-IO chips
watchdog: it87: Use infrastructure to stop watchdog on reboot
watchdog: it87: Drop support for resetting watchdog though CIR and Game port
watchdog: it87: Convert to use watchdog core infrastructure
watchdog: it87: Drop FSF mailing address
watchdog: dw_wdt: get reset lines from dt
watchdog: bindings: dw_wdt: add reset lines
watchdog: w83627hf: Add support for NCT6793D and NCT6795D
watchdog: core: add option to avoid early handling of watchdog
watchdog: f71808e_wdt: Add F71868 support
watchdog: Add STM32 IWDG driver
...
Add device tree binding documentation for the clocks provided by the
MIPS Boston development board from Imagination Technologies, and a
header file describing the available clocks for use by device trees &
driver.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: devicetree@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16482/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Kill off s_options, save/replace_mount_options() and generic_show_options()
as all filesystems now implement ->show_options() for themselves. This
should make it easier to implement a context-based mount where the mount
options can be passed individually over a file descriptor.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Merge more updates from Andrew Morton:
- most of the rest of MM
- KASAN updates
- lib/ updates
- checkpatch updates
- some binfmt_elf changes
- various misc bits
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (115 commits)
kernel/exit.c: avoid undefined behaviour when calling wait4()
kernel/signal.c: avoid undefined behaviour in kill_something_info
binfmt_elf: safely increment argv pointers
s390: reduce ELF_ET_DYN_BASE
powerpc: move ELF_ET_DYN_BASE to 4GB / 4MB
arm64: move ELF_ET_DYN_BASE to 4GB / 4MB
arm: move ELF_ET_DYN_BASE to 4MB
binfmt_elf: use ELF_ET_DYN_BASE only for PIE
fs, epoll: short circuit fetching events if thread has been killed
checkpatch: improve multi-line alignment test
checkpatch: improve macro reuse test
checkpatch: change format of --color argument to --color[=WHEN]
checkpatch: silence perl 5.26.0 unescaped left brace warnings
checkpatch: improve tests for multiple line function definitions
checkpatch: remove false warning for commit reference
checkpatch: fix stepping through statements with $stat and ctx_statement_block
checkpatch: [HLP]LIST_HEAD is also declaration
checkpatch: warn when a MAINTAINERS entry isn't [A-Z]:\t
checkpatch: improve the unnecessary OOM message test
lib/bsearch.c: micro-optimize pivot position calculation
...
It seems that there are still people using 32b kernels which a lot of
memory and the IO tend to suck a lot for them by default. Mostly
because writers are throttled too when the lowmem is used. We have
highmem_is_dirtyable to work around that issue but it seems we never
bothered to document it. Let's do it now, finally.
Link: http://lkml.kernel.org/r/20170626093200.18958-1-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Alkis Georgopoulos <alkisg@gmail.com>
Cc: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
movable_node kernel parameter allows making hotpluggable NUMA nodes to
put all the hotplugable memory into movable zone which allows more or
less reliable memory hotremove. At least this is the case for the NUMA
nodes present during the boot (see find_zone_movable_pfns_for_nodes).
This is not the case for the memory hotplug, though.
echo online > /sys/devices/system/memory/memoryXYZ/state
will default to a kernel zone (usually ZONE_NORMAL) unless the
particular memblock is already in the movable zone range which is not
the case normally when onlining the memory from the udev rule context
for a freshly hotadded NUMA node. The only option currently is to have
a special udev rule to echo online_movable to all memblocks belonging to
such a node which is rather clumsy. Not to mention this is inconsistent
as well because what ended up in the movable zone during the boot will
end up in a kernel zone after hotremove & hotadd without special care.
It would be nice to reuse memblock_is_hotpluggable but the runtime
hotplug doesn't have that information available because the boot and
hotplug paths are not shared and it would be really non trivial to make
them use the same code path because the runtime hotplug doesn't play
with the memblock allocator at all.
Teach move_pfn_range that MMOP_ONLINE_KEEP can use the movable zone if
movable_node is enabled and the range doesn't overlap with the existing
normal zone. This should provide a reasonable default onlining
strategy.
Strictly speaking the semantic is not identical with the boot time
initialization because find_zone_movable_pfns_for_nodes covers only the
hotplugable range as described by the BIOS/FW. From my experience this
is usually a full node though (except for Node0 which is special and
never goes away completely). If this turns out to be a problem in the
real life we can tweak the code to store hotplug flag into memblocks but
let's keep this simple now.
Link: http://lkml.kernel.org/r/20170612111227.GI7476@dhcp22.suse.cz
Signed-off-by: Michal Hocko <mhocko@suse.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Yasuaki Ishimatsu <yasu.isimatu@gmail.com>
Cc: <qiuxishi@huawei.com>
Cc: Kani Toshimitsu <toshi.kani@hpe.com>
Cc: <slaoub@gmail.com>
Cc: Joonsoo Kim <js1304@gmail.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Daniel Kiper <daniel.kiper@oracle.com>
Cc: Igor Mammedov <imammedo@redhat.com>
Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
By default, vmpressure events are not pass-through, i.e. they propagate
up through the memcg hierarchy until an event notifier is found for any
threshold level.
This presents a difficulty when a thread waiting on a read(2) for a
vmpressure event cannot distinguish between local memory pressure and
memory pressure in a descendant memcg, especially when that thread may
not control the memcg hierarchy.
Consider a user-controlled child memcg with a smaller limit than a
top-level memcg controlled by the "Activity Manager" specified in
Documentation/cgroup-v1/memory.txt. It may register for memory pressure
notification for descendant memcgs to make a policy decision: oom kill a
low priority job, increase the limit, decrease other limits, etc. If it
registers for memory pressure notification on the top-level memcg, it
currently cannot distinguish between memory pressure in its own memcg or
a descendant memcg, which is user-controlled.
Conversely, if a user registers for memory pressure notification on
their own descendant memcg, the Activity Manager does not receive any
pressure notification for that child memcg hierarchy. Vmpressure events
are not received for ancestor memcgs if the memcg experiencing pressure
have notifiers registered, perhaps outside the knowledge of the thread
waiting on read(2) at the top level.
Both of these are consequences of vmpressure notification not being
pass-through.
This implements a pass-through behavior for vmpressure events. When
writing to control.event_control, vmpressure event handlers may
optionally specify a mode. There are two new modes:
- "hierarchy": always propagate memory pressure events up the hierarchy
regardless if descendant memcgs have their own notifiers registered,
and
- "local": only receive notifications when the memcg for which the
event is registered experiences memory pressure.
Of course, processes may register for one notification of "low,local",
for example, and another for "low".
If no mode is specified, the current behavior is maintained for
backwards compatibility.
See the change to Documentation/cgroup-v1/memory.txt for full
specification.
[dan.carpenter@oracle.com: free the same pointer we allocated]
Link: http://lkml.kernel.org/r/20170613191820.GA20003@elgon.mountain
Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1705311421320.8946@chino.kir.corp.google.com
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Anton Vorontsov <anton@enomsg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In this round, we've added new features such as disk quota and statx, and
modified internal bio management flow to merge more IOs depending on block
types. We've also made internal threads freezeable for Android battery life.
In addition to them, there are some patches to avoid lock contention as well
as a couple of deadlock conditions.
= Enhancement
- support usrquota, grpquota, and statx
- manage DATA/NODE typed bios separately to serialize more IOs
- modify f2fs_lock_op/wio_mutex to avoid lock contention
- prevent lock contention in migratepage
= Bug fix
- miss to load written inode flag
- fix worst case victim selection in GC
- freezeable GC and discard threads for Android battery life
- sanitize f2fs metadata to deal with security hole
- clean up sysfs-related code and docs
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Merge tag 'for-f2fs-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
"In this round, we've added new features such as disk quota and statx,
and modified internal bio management flow to merge more IOs depending
on block types. We've also made internal threads freezeable for
Android battery life. In addition to them, there are some patches to
avoid lock contention as well as a couple of deadlock conditions.
Enhancements:
- support usrquota, grpquota, and statx
- manage DATA/NODE typed bios separately to serialize more IOs
- modify f2fs_lock_op/wio_mutex to avoid lock contention
- prevent lock contention in migratepage
Bug fixes:
- fix missing load of written inode flag
- fix worst case victim selection in GC
- freezeable GC and discard threads for Android battery life
- sanitize f2fs metadata to deal with security hole
- clean up sysfs-related code and docs"
* tag 'for-f2fs-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (59 commits)
f2fs: support plain user/group quota
f2fs: avoid deadlock caused by lock order of page and lock_op
f2fs: use spin_{,un}lock_irq{save,restore}
f2fs: relax migratepage for atomic written page
f2fs: don't count inode block in in-memory inode.i_blocks
Revert "f2fs: fix to clean previous mount option when remount_fs"
f2fs: do not set LOST_PINO for renamed dir
f2fs: do not set LOST_PINO for newly created dir
f2fs: skip ->writepages for {mete,node}_inode during recovery
f2fs: introduce __check_sit_bitmap
f2fs: stop gc/discard thread in prior during umount
f2fs: introduce reserved_blocks in sysfs
f2fs: avoid redundant f2fs_flush after remount
f2fs: report # of free inodes more precisely
f2fs: add ioctl to do gc with target block address
f2fs: don't need to check encrypted inode for partial truncation
f2fs: measure inode.i_blocks as generic filesystem
f2fs: set CP_TRIMMED_FLAG correctly
f2fs: require key for truncate(2) of encrypted file
f2fs: move sysfs code from super.c to fs/f2fs/sysfs.c
...
Commit ac6424b981 ("sched/wait: Rename wait_queue_t =>
wait_queue_entry_t") had scripted the renaming incorrectly, and didn't
actually check that the 'wait_queue_t' was a full token.
As a result, it also triggered on 'wait_queue_token', and renamed that
to 'wait_queue_entry_token' entry in the autofs4 packet structure
definition too. That was entirely incorrect, and not intended.
The end result built fine when building just the kernel - because
everything had been renamed consistently there - but caused problems in
user space because the "struct autofs_packet_missing" type is exported
as part of the uapi.
This scripts it all back again:
git grep -lw wait_queue_entry_token |
xargs sed -i 's/wait_queue_entry_token/wait_queue_token/g'
and checks the end result.
Reported-by: Florian Fainelli <f.fainelli@gmail.com>
Acked-by: Ingo Molnar <mingo@kernel.org>
Fixes: ac6424b981 ("sched/wait: Rename wait_queue_t => wait_queue_entry_t")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Merge tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
"This is the main pull request for the drm, I think I've got one later
driver pull for mediatek SoC driver, I'm undecided on if it needs to
go to you yet.
Otherwise summary below:
Core drm:
- Atomic add driver private objects
- Deprecate preclose hook in modern drivers
- MST bandwidth tracking
- Use kvmalloc in more places
- Add mode_valid hook for crtc/encoder/bridge
- Reduce sync_file construction time
- Documentation updates
- New DRM synchronisation object support
New drivers:
- pl111 - pl111 CLCD display controller
Panel:
- Innolux P079ZCA panel driver
- Add NL12880B20-05, NL192108AC18-02D, P320HVN03 panels
- panel-samsung-s6e3ha2: Add s6e3hf2 panel support
i915:
- SKL+ watermark fixes
- G4x/G33 reset improvements
- DP AUX backlight improvements
- Buffer based GuC/host communication
- New getparam for (sub)slice infomation
- Cannonlake and Coffeelake initial patches
- Execbuf optimisations
radeon/amdgpu:
- Lots of Vega10 bug fixes
- Preliminary raven support
- KIQ support for compute rings
- MEC queue management rework
- DCE6 Audio support
- SR-IOV improvements
- Better radeon/amdgpu selection support
nouveau:
- HDMI stereoscopic support
- Display code rework for >= GM20x GPUs
msm:
- GEM rework for fine-grained locking
- Per-process pagetable work
- HDMI fixes for Snapdragon 820.
vc4:
- Remove 256MB CMA limit from vc4
- Add out-fence support
- Add support for cygnus
- Get/set tiling ioctls support
- Add T-format tiling support for scanout
zte:
- add VGA support.
etnaviv:
- Thermal throttle support for newer GPUs
- Restore userspace buffer cache performance
- dma-buf sync fix
stm:
- add stm32f429 display support
exynos:
- Rework vblank handling
- Fixup sw-trigger code
sun4i:
- V3s display engine support
- HDMI support for older SoCs
- Preliminary work on dual-pipeline SoCs.
rcar-du:
- VSP work
imx-drm:
- Remove counter load enable from PRE
- Double read/write reduction flag support
tegra:
- Documentation for the host1x and drm driver.
- Lots of staging ioctl fixes due to grate project work.
omapdrm:
- dma-buf fence support
- TILER rotation fixes"
* tag 'drm-for-v4.13' of git://people.freedesktop.org/~airlied/linux: (1270 commits)
drm: Remove unused drm_file parameter to drm_syncobj_replace_fence()
drm/amd/powerplay: fix bug fail to remove sysfs when rmmod amdgpu.
amdgpu: Set cik/si_support to 1 by default if radeon isn't built
drm/amdgpu/gfx9: fix driver reload with KIQ
drm/amdgpu/gfx8: fix driver reload with KIQ
drm/amdgpu: Don't call amd_powerplay_destroy() if we don't have powerplay
drm/ttm: Fix use-after-free in ttm_bo_clean_mm
drm/amd/amdgpu: move get memory type function from early init to sw init
drm/amdgpu/cgs: always set reference clock in mode_info
drm/amdgpu: fix vblank_time when displays are off
drm/amd/powerplay: power value format change for Vega10
drm/amdgpu/gfx9: support the amdgpu.disable_cu option
drm/amd/powerplay: change PPSMC_MSG_GetCurrPkgPwr for Vega10
drm/amdgpu: Make amdgpu_cs_parser_init static (v2)
drm/amdgpu/cs: fix a typo in a comment
drm/amdgpu: Fix the exported always on CU bitmap
drm/amdgpu/gfx9: gfx_v9_0_enable_gfx_static_mg_power_gating() can be static
drm/amdgpu/psp: upper_32_bits/lower_32_bits for address setup
drm/amd/powerplay/cz: print message if smc message fails
drm/amdgpu: fix typo in amdgpu_debugfs_test_ib_init
...
This patch adds to support plain user/group quota.
Change Note by Jaegeuk Kim.
- Use f2fs page cache for quota files in order to consider garbage collection.
so, quota files are not tolerable for sudden power-cuts, so user needs to do
quotacheck.
- setattr() calls dquot_transfer which will transfer inode->i_blocks.
We can't reclaim that during f2fs_evict_inode(). So, we need to count
node blocks as well in order to match i_blocks with dquot's space.
Note that, Chao wrote a patch to count inode->i_blocks without inode block.
(f2fs: don't count inode block in in-memory inode.i_blocks)
- in f2fs_remount, we need to make RW in prior to dquot_resume.
- handle fault_injection case during f2fs_quota_off_umount
- TODO: Project quota
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Pull input updates from Dmitry Torokhov:
- a new driver for STM FingerTip touchscreen
- a new driver for D-Link DIR-685 touch keys
- updated list of supported devices in xpad driver
- other assorted updates and fixes
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (23 commits)
MAINTAINERS: update input subsystem patterns
Input: introduce KEY_ASSISTANT
Input: xpad - sync supported devices with XBCD
Input: xpad - sync supported devices with 360Controller
Input: xen-kbdfront - use string constants from PV protocol
Input: stmfts - mark all PM functions as __maybe_unused
Input: add support for the STMicroelectronics FingerTip touchscreen
Input: add D-Link DIR-685 touchkeys driver
Input: s3c2410_ts - handle return value of clk_prepare_enable
Input: axp20x-pek - add wakeup support
Input: synaptics-rmi4 - use %phN to form F34 configuration ID
Input: synaptics-rmi4 - change a char type to u8
Input: sparse-keymap - remove sparse_keymap_free()
Input: tsc2007 - move header file out of I2C realm
Input: mms114 - move header file out of I2C realm
Input: mcs - move header file out of I2C realm
Input: lm8323 - move header file out of I2C realm
Input: elantech - force relative mode on a certain module
Input: elan_i2c - add support for fetching chip type on newer hardware
Input: elan_i2c - check if device is there before really probing
...
- removal of AVR32 support in dw driver as AVR32 is gone
- new driver for Broadcom stream buffer accelerator (SBA) RAID driver
- add support for Faraday Technology FTDMAC020 in amba-pl08x driver
- IOMMU support in pl330 driver
- updates to bunch of drivers
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Merge tag 'dmaengine-4.13-rc1' of git://git.infradead.org/users/vkoul/slave-dma
Pull dmaengine updates from Vinod Koul:
- removal of AVR32 support in dw driver as AVR32 is gone
- new driver for Broadcom stream buffer accelerator (SBA) RAID driver
- add support for Faraday Technology FTDMAC020 in amba-pl08x driver
- IOMMU support in pl330 driver
- updates to bunch of drivers
* tag 'dmaengine-4.13-rc1' of git://git.infradead.org/users/vkoul/slave-dma: (36 commits)
dmaengine: qcom_hidma: correct API violation for submit
dmaengine: zynqmp_dma: Remove max len check in zynqmp_dma_prep_memcpy
dmaengine: tegra-apb: Really fix runtime-pm usage
dmaengine: fsl_raid: make of_device_ids const.
dmaengine: qcom_hidma: allow ACPI/DT parameters to be overridden
dmaengine: fsldma: set BWC, DAHTS and SAHTS values correctly
dmaengine: Kconfig: Simplify the help text for MXS_DMA
dmaengine: pl330: Delete unused functions
dmaengine: Replace WARN_TAINT_ONCE() with pr_warn_once()
dmaengine: Kconfig: Extend the dependency for MXS_DMA
dmaengine: mxs: Use %zu for printing a size_t variable
dmaengine: ste_dma40: Cleanup scatterlist layering violations
dmaengine: imx-dma: cleanup scatterlist layering violations
dmaengine: use proper name for the R-Car SoC
dmaengine: imx-sdma: Fix compilation warning.
dmaengine: imx-sdma: Handle return value of clk_prepare_enable
dmaengine: pl330: Add IOMMU support to slave tranfers
dmaengine: DW DMAC: Handle return value of clk_prepare_enable
dmaengine: pl08x: use GENMASK() to create bitmasks
dmaengine: pl08x: Add support for Faraday Technology FTDMAC020
...
Pull networking fixes from David Miller:
"Mostly fixing some light fallout from the changes that went into the
merge window.
1) Fix memory leaks on network namespace teardown in netfilter, from
Liping Zhang.
2) When comparing ipv6 nexthops, we have to take the lightweight
tunnel state into account as well. From David Ahern.
3) Fix socket option object length check in the new TLS code, from
Matthias Rosenfelder.
4) Fix memory leak in nfp driver flower support, from Jakub Kicinski.
5) Several netlink attribute validation fixes in cfg80211, from
Srinivas Dasari.
6) Fix context array leak in virtio_net, from Jason Wang.
7) SKB use after free in hns driver, from Yusheng Lin.
8) Fix socket leak on accept() in RDS, from Sowmini Varadhan. Also
add a WARN_ON() to sock_graft() so other protocol stacks don't
trip over this as well"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (26 commits)
net: ethernet: mediatek: remove useless code in mtk_probe()
mpls: fix uninitialized in_label var warning in mpls_getroute
doc: SKB_GSO_[IPIP|SIT] have been replaced
bonding: avoid NETDEV_CHANGEMTU event when unregistering slave
net/sock: add WARN_ON(parent->sk) in sock_graft()
rds: tcp: use sock_create_lite() to create the accept socket
net: hns: Fix a skb used after free bug
net: hns: Fix a wrong op phy C45 code
net: macb: Adding Support for Jumbo Frames up to 10240 Bytes in SAMA5D3
net: Update networking MAINTAINERS entry.
virtio-net: fix leaking of ctx array
cfg80211: Validate frequencies nested in NL80211_ATTR_SCAN_FREQUENCIES
cfg80211: Define nla_policy for NL80211_ATTR_LOCAL_MESH_POWER_MODE
cfg80211: Check if NAN service ID is of expected size
cfg80211: Check if PMKID attribute is of expected size
arcnet: com20020-pci: Fix an error handling path in 'com20020pci_probe()'
nfp: flower: add missing clean up call to avoid memory leaks
vrf: fix bug_on triggered by rx when destroying a vrf
ptp: dte: Use LL suffix for 64-bit constants
sctp: set the value of flowi6_oif to sk_bound_dev_if to make sctp_v6_get_dst to find the correct route entry.
...
Those enum values don't exist anymore.
Fixes: 7e13318daa ("net: define gso types for IPx over IPv4 and IPv6")
CC: Tom Herbert <tom@herbertland.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'for-linus-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux
Pull Writeback error handling updates from Jeff Layton:
"This pile represents the bulk of the writeback error handling fixes
that I have for this cycle. Some of the earlier patches in this pile
may look trivial but they are prerequisites for later patches in the
series.
The aim of this set is to improve how we track and report writeback
errors to userland. Most applications that care about data integrity
will periodically call fsync/fdatasync/msync to ensure that their
writes have made it to the backing store.
For a very long time, we have tracked writeback errors using two flags
in the address_space: AS_EIO and AS_ENOSPC. Those flags are set when a
writeback error occurs (via mapping_set_error) and are cleared as a
side-effect of filemap_check_errors (as you noted yesterday). This
model really sucks for userland.
Only the first task to call fsync (or msync or fdatasync) will see the
error. Any subsequent task calling fsync on a file will get back 0
(unless another writeback error occurs in the interim). If I have
several tasks writing to a file and calling fsync to ensure that their
writes got stored, then I need to have them coordinate with one
another. That's difficult enough, but in a world of containerized
setups that coordination may even not be possible.
But wait...it gets worse!
The calls to filemap_check_errors can be buried pretty far down in the
call stack, and there are internal callers of filemap_write_and_wait
and the like that also end up clearing those errors. Many of those
callers ignore the error return from that function or return it to
userland at nonsensical times (e.g. truncate() or stat()). If I get
back -EIO on a truncate, there is no reason to think that it was
because some previous writeback failed, and a subsequent fsync() will
(incorrectly) return 0.
This pile aims to do three things:
1) ensure that when a writeback error occurs that that error will be
reported to userland on a subsequent fsync/fdatasync/msync call,
regardless of what internal callers are doing
2) report writeback errors on all file descriptions that were open at
the time that the error occurred. This is a user-visible change,
but I think most applications are written to assume this behavior
anyway. Those that aren't are unlikely to be hurt by it.
3) document what filesystems should do when there is a writeback
error. Today, there is very little consistency between them, and a
lot of cargo-cult copying. We need to make it very clear what
filesystems should do in this situation.
To achieve this, the set adds a new data type (errseq_t) and then
builds new writeback error tracking infrastructure around that. Once
all of that is in place, we change the filesystems to use the new
infrastructure for reporting wb errors to userland.
Note that this is just the initial foray into cleaning up this mess.
There is a lot of work remaining here:
1) convert the rest of the filesystems in a similar fashion. Once the
initial set is in, then I think most other fs' will be fairly
simple to convert. Hopefully most of those can in via individual
filesystem trees.
2) convert internal waiters on writeback to use errseq_t for
detecting errors instead of relying on the AS_* flags. I have some
draft patches for this for ext4, but they are not quite ready for
prime time yet.
This was a discussion topic this year at LSF/MM too. If you're
interested in the gory details, LWN has some good articles about this:
https://lwn.net/Articles/718734/https://lwn.net/Articles/724307/"
* tag 'for-linus-v4.13-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux:
btrfs: minimal conversion to errseq_t writeback error reporting on fsync
xfs: minimal conversion to errseq_t writeback error reporting
ext4: use errseq_t based error handling for reporting data writeback errors
fs: convert __generic_file_fsync to use errseq_t based reporting
block: convert to errseq_t based writeback error tracking
dax: set errors in mapping when writeback fails
Documentation: flesh out the section in vfs.txt on storing and reporting writeback errors
mm: set both AS_EIO/AS_ENOSPC and errseq_t in mapping_set_error
fs: new infrastructure for writeback error handling and reporting
lib: add errseq_t type and infrastructure for handling it
mm: don't TestClearPageError in __filemap_fdatawait_range
mm: clear AS_EIO/AS_ENOSPC when writeback initiation fails
jbd2: don't clear and reset errors after waiting on writeback
buffer: set errors in mapping at the time that the error occurs
fs: check for writeback errors after syncing out buffers in generic_file_fsync
buffer: use mapping_set_error instead of setting the flag
mm: fix mapping_set_error call in me_pagecache_dirty
* addition of on-ecc support to Micron driver
* addition of helpers to help drivers choose most appropriate ECC
settings
* deletion of dead-code (cached programming and ->errstat() hook)
* make sure drivers that do not support the SET/GET FEATURES command
return ENOTSUPP use a dummy ->set/get_features implementation
returning -ENOTSUPP (required for Micron on-die ECC)
* change the semantic of ecc->write_page() for drivers setting the
NAND_ECC_CUSTOM_PAGE_ACCESS flag
* support exiting 'GET STATUS' command in default ->cmdfunc()
implementations
* change the prototype of ->setup_data_interface()
A bunch of driver related changes:
* various cleanup, fixes and improvements of the MTK driver
* OMAP DT bindings fixes
* support for ->setup_data_interface() in the fsmc driver
* support for imx7 in the gpmi driver
* finalization of the denali driver rework (thanks to Masahiro for the
work he's done on this driver)
* fix "bitflips in erased pages" handling in the ifc driver
* addition of PM ops and dynamic timing configuration to the atmel
driver
And as usual we also have a few minor cleanup/fixes/improvements
patches across the subsystem.
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Merge tag 'nand/for-4.13' into MTD
From Boris:
"""
This pull request contains the following core changes:
* addition of on-ecc support to Micron driver
* addition of helpers to help drivers choose most appropriate ECC
settings
* deletion of dead-code (cached programming and ->errstat() hook)
* make sure drivers that do not support the SET/GET FEATURES command
return ENOTSUPP use a dummy ->set/get_features implementation
returning -ENOTSUPP (required for Micron on-die ECC)
* change the semantic of ecc->write_page() for drivers setting the
NAND_ECC_CUSTOM_PAGE_ACCESS flag
* support exiting 'GET STATUS' command in default ->cmdfunc()
implementations
* change the prototype of ->setup_data_interface()
A bunch of driver related changes:
* various cleanup, fixes and improvements of the MTK driver
* OMAP DT bindings fixes
* support for ->setup_data_interface() in the fsmc driver
* support for imx7 in the gpmi driver
* finalization of the denali driver rework (thanks to Masahiro for the
work he's done on this driver)
* fix "bitflips in erased pages" handling in the ifc driver
* addition of PM ops and dynamic timing configuration to the atmel
driver
And as usual we also have a few minor cleanup/fixes/improvements
patches across the subsystem.
"""
Thin archives migration by Nicholas Piggin.
THIN_ARCHIVES has been available for a while as an optional feature
only for PowerPC architecture, but we do not need two different
intermediate-artifact schemes.
Using thin archives instead of conventional incremental linking has
various advantages:
- save disk space for builds
- speed-up building a little
- fix some link issues (for example, allyesconfig on ARM) due to
more flexibility for the final linking
- work better with dead code elimination we are planning
As discussed before, this migration has been done unconditionally
so that any problems caused by this will show up with "git bisect".
With testing with 0-day and linux-next, some architectures actually
showed up problems, but they were trivial and all fixed now.
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Merge tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild thin archives updates from Masahiro Yamada:
"Thin archives migration by Nicholas Piggin.
THIN_ARCHIVES has been available for a while as an optional feature
only for PowerPC architecture, but we do not need two different
intermediate-artifact schemes.
Using thin archives instead of conventional incremental linking has
various advantages:
- save disk space for builds
- speed-up building a little
- fix some link issues (for example, allyesconfig on ARM) due to more
flexibility for the final linking
- work better with dead code elimination we are planning
As discussed before, this migration has been done unconditionally so
that any problems caused by this will show up with "git bisect".
With testing with 0-day and linux-next, some architectures actually
showed up problems, but they were trivial and all fixed now"
* tag 'kbuild-thinar-v4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
tile: remove unneeded extra-y in Makefile
kbuild: thin archives make default for all archs
x86/um: thin archives build fix
tile: thin archives fix linking
ia64: thin archives fix linking
sh: thin archives fix linking
kbuild: handle libs-y archives separately from built-in.o archives
kbuild: thin archives use P option to ar
kbuild: thin archives final link close --whole-archives option
ia64: remove unneeded extra-y in Makefile.gate
tile: fix dependency and .*.cmd inclusion for incremental build
sparc64: Use indirect calls in hamming weight stubs
This update consists of:
-- TAP13 framework and changes to some tests to convert to TAP13.
Converting kselftest output to standard format will help identify
run to run differences and pin point failures easily. TAP13 format
has been in use for several years and the output is human friendly.
Please find the specification:
https://testanything.org/tap-version-13-specification.html
Credit goes to Tim Bird for recommending TAP13 as a suitable format,
and to Grag KH for kick starting the work with help from Paul Elder
and Alice Ferrazzi
The first phase of the TAp13 conversion is included in this update.
Future updates will include updates to rest of the tests.
-- Masami Hiramatsu fixed ftrace to run on 4.9 stable kernels.
-- Kselftest documnetation has been converted to ReST format. Document
now has a new home under Documentation/dev-tools.
-- kselftest_harness.h is now available for general use as a result of
Mickaël Salaün's work.
-- Several fixes to skip and/or fail tests gracefully on older releases.
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Merge tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull Kselftest updates from Shuah Khan:
"This update consists of:
- TAP13 framework and changes to some tests to convert to TAP13.
Converting kselftest output to standard format will help identify
run to run differences and pin point failures easily. TAP13 format
has been in use for several years and the output is human friendly.
Please find the specification:
https://testanything.org/tap-version-13-specification.html
Credit goes to Tim Bird for recommending TAP13 as a suitable
format, and to Grag KH for kick starting the work with help from
Paul Elder and Alice Ferrazzi
The first phase of the TAp13 conversion is included in this update.
Future updates will include updates to rest of the tests.
- Masami Hiramatsu fixed ftrace to run on 4.9 stable kernels.
- Kselftest documnetation has been converted to ReST format. Document
now has a new home under Documentation/dev-tools.
- kselftest_harness.h is now available for general use as a result of
Mickaël Salaün's work.
- Several fixes to skip and/or fail tests gracefully on older
releases"
* tag 'linux-kselftest-4.13-rc1-update' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (48 commits)
selftests: membarrier: use ksft_* var arg msg api
selftests: breakpoints: breakpoint_test_arm64: convert test to use TAP13
selftests: breakpoints: step_after_suspend_test use ksft_* var arg msg api
selftests: breakpoint_test: use ksft_* var arg msg api
kselftest: add ksft_print_msg() function to output general information
kselftest: make ksft_* output functions variadic
selftests/capabilities: Fix the test_execve test
selftests: intel_pstate: add .gitignore
selftests: fix memory-hotplug test
selftests: add missing test name in memory-hotplug test
selftests: check percentage range for memory-hotplug test
selftests: check hot-pluggagble memory for memory-hotplug test
selftests: typo correction for memory-hotplug test
selftests: ftrace: Use md5sum to take less time of checking logs
tools/testing/selftests/sysctl: Add pre-check to the value of writes_strict
kselftest.rst: do some adjustments after ReST conversion
selftest/net/Makefile: Specify output with $(OUTPUT)
selftest/intel_pstate/aperf: Use LDLIBS instead of LDFLAGS
selftest/memfd/Makefile: Fix build error
selftests: lib: Skip tests on missing test modules
...
Highlights include:
- Support for STRICT_KERNEL_RWX on 64-bit server CPUs.
- Platform support for FSP2 (476fpe) board
- Enable ZONE_DEVICE on 64-bit server CPUs.
- Generic & powerpc spin loop primitives to optimise busy waiting
- Convert VDSO update function to use new update_vsyscall() interface
- Optimisations to hypercall/syscall/context-switch paths
- Improvements to the CPU idle code on Power8 and Power9.
As well as many other fixes and improvements.
Thanks to:
Akshay Adiga, Andrew Donnellan, Andrew Jeffery, Anshuman Khandual, Anton
Blanchard, Balbir Singh, Benjamin Herrenschmidt, Christophe Leroy, Christophe
Lombard, Colin Ian King, Dan Carpenter, Gautham R. Shenoy, Hari Bathini, Ian
Munsie, Ivan Mikhaylov, Javier Martinez Canillas, Madhavan Srinivasan,
Masahiro Yamada, Matt Brown, Michael Neuling, Michal Suchanek, Murilo
Opsfelder Araujo, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Paul
Mackerras, Pavel Machek, Russell Currey, Santosh Sivaraj, Stephen Rothwell,
Thiago Jung Bauermann, Yang Li.
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Merge tag 'powerpc-4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Highlights include:
- Support for STRICT_KERNEL_RWX on 64-bit server CPUs.
- Platform support for FSP2 (476fpe) board
- Enable ZONE_DEVICE on 64-bit server CPUs.
- Generic & powerpc spin loop primitives to optimise busy waiting
- Convert VDSO update function to use new update_vsyscall() interface
- Optimisations to hypercall/syscall/context-switch paths
- Improvements to the CPU idle code on Power8 and Power9.
As well as many other fixes and improvements.
Thanks to: Akshay Adiga, Andrew Donnellan, Andrew Jeffery, Anshuman
Khandual, Anton Blanchard, Balbir Singh, Benjamin Herrenschmidt,
Christophe Leroy, Christophe Lombard, Colin Ian King, Dan Carpenter,
Gautham R. Shenoy, Hari Bathini, Ian Munsie, Ivan Mikhaylov, Javier
Martinez Canillas, Madhavan Srinivasan, Masahiro Yamada, Matt Brown,
Michael Neuling, Michal Suchanek, Murilo Opsfelder Araujo, Naveen N.
Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pavel Machek,
Russell Currey, Santosh Sivaraj, Stephen Rothwell, Thiago Jung
Bauermann, Yang Li"
* tag 'powerpc-4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits)
powerpc/Kconfig: Enable STRICT_KERNEL_RWX for some configs
powerpc/mm/radix: Implement STRICT_RWX/mark_rodata_ro() for Radix
powerpc/mm/hash: Implement mark_rodata_ro() for hash
powerpc/vmlinux.lds: Align __init_begin to 16M
powerpc/lib/code-patching: Use alternate map for patch_instruction()
powerpc/xmon: Add patch_instruction() support for xmon
powerpc/kprobes/optprobes: Use patch_instruction()
powerpc/kprobes: Move kprobes over to patch_instruction()
powerpc/mm/radix: Fix execute permissions for interrupt_vectors
powerpc/pseries: Fix passing of pp0 in updatepp() and updateboltedpp()
powerpc/64s: Blacklist rtas entry/exit from kprobes
powerpc/64s: Blacklist functions invoked on a trap
powerpc/64s: Un-blacklist system_call() from kprobes
powerpc/64s: Move system_call() symbol to just after setting MSR_EE
powerpc/64s: Blacklist system_call() and system_call_common() from kprobes
powerpc/64s: Convert .L__replay_interrupt_return to a local label
powerpc64/elfv1: Only dereference function descriptor for non-text symbols
cxl: Export library to support IBM XSL
powerpc/dts: Use #include "..." to include local DT
powerpc/perf/hv-24x7: Aggregate result elements on POWER9 SMT8
...
Pull MFD updates from Lee Jones:
"New Drivers:
- Intel Cherry Trail Whiskey Cove PMIC
- TI LP87565 PMIC
New Device Support:
- Add support for Cannonlake to intel-lpss-pci
- Add support for Simatic IOT2000 to intel_quark_i2c_gpio
New Functionality:
- Add Regulator support (axp20x)
Fix-ups:
- Rework IRQ handling (intel_soc_pmic_bxtwc, rtsx_pcr, cros_ec)
- Remove unused/unwelcome code (ipaq-micro, wm831x-core, da9062-core)
- Provide deregistration on unbind (rn5t618)
- Rework DT code/documentation (arizona)
- Constify things (fsl-imx25-tsadc)
- MAINTAINERS updates (DA9062/61)
- Kconfig configuration adaptions (INTEL_SOC_PMIC, MFD_AXP20X_I2C)
- Switch to DMI matching (intel_quark_i2c_gpio)
- Provide an appropriate level of error checking (wm831x-{i2c,spi},
twl4030-irq, tc6393xb)
- Make use of devm_* (resource handling) calls (intel_soc_pmic_bxtwc,
stm32-timers, atmel-flexcom, cros_ec, fsl-imx25-tsadc,
exynos-lpass, palmas, qcom-spmi-pmic, smsc-ece1099,
motorola-cpcap)"
[ Skipped the last commit in that series that added eight thousand
lines of pointless repeated register definitions. - Linus ]
* tag 'mfd-next-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (38 commits)
mfd: Add LP87565 PMIC support
mfd: cros_ec: Free IRQ on exit
dt-bindings: vendor-prefixes: Add arctic to vendor prefix
mfd: da9061: Fix to remove BBAT_CONT register from chip model
mfd: da9061: Fix to remove BBAT_CONT register from chip model
mfd: axp20x-i2c: Document that this must be builtin on x86
mfd: Add Cherry Trail Whiskey Cove PMIC driver
mfd: tc6393xb: Handle return value of clk_prepare_enable
mfd: intel_quark_i2c_gpio: Add support for SIMATIC IOT2000 platform
mfd: intel_quark_i2c_gpio: Use dmi_system_id table for retrieving frequency
mfd: motorola-cpcap: Use devm_of_platform_populate()
mfd: smsc-ece: Use devm_of_platform_populate()
mfd: qcom-spmi-pmic: Use devm_of_platform_populate()
mfd: palmas: Use devm_of_platform_populate()
mfd: exynos: Use devm_of_platform_populate()
mfd: fsl-imx25: Use devm_of_platform_populate()
mfd: cros_ec: Use devm_of_platform_populate()
mfd: atmel: Use devm_of_platform_populate()
mfd: stm32-timers: Use devm_of_platform_populate()
mfd: intel_soc_pmic: Select designware i2c-bus driver
...
Core:
- Export add/remove for lookup tables so that modules can export GPIO
descriptor tables.
- Handle GPIO sleep states: it is now possible to flag that a GPIO line
may loose its state during suspend/resume of the system to save
power. This is used in the Wolfson Micro Arizona driver.
- ACPI-based GPIO was tightened up a lot around the edges.
- Use bitmap_fill() to speed up a loop.
New drivers:
- Exar XRA1403 SPI-based GPIO.
- MVEBU driver now supports Armada 7K and 8K.
- LP87565 PMIC GPIO.
- Renesas R-CAR R8A7743 (RZ/G1M).
- The new IOT2040 8250 serial/GPIO also comes in through this
changeset.
Substantial driver changes:
- Seriously fix the Exar 8250 GPIO portions to work.
- The MCP23S08 was moved out to a pin control driver.
- Convert MEVEBU to use regmap for register access.
- Drop Vulcan support from the Broadcom driver.
- Serious cleanup and improvement of the mockup driver, giving us a
better test coverage.
Misc:
- Lots of janitorial clean up.
- A bunch of documentation fixes.
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Merge tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO updates from Linus Walleij:
"This is the bulk of GPIO changes for the v4.13 series.
Some administrativa:
I have a slew of 8250 serial patches and the new IOT2040 serial+GPIO
driver coming in through this tree, along with a whole bunch of Exar
8250 fixes. These are ACKed by Greg and also hit drivers/platform/*
where they are ACKed by Andy Shevchenko.
Speaking about drivers/platform/* there is also a bunch of ACPI stuff
coming through that route, again ACKed by Andy.
The MCP23S08 changes are coming in here as well. You already have the
commits in your tree, so this is just a result of sharing an immutable
branch between pin control and GPIO.
Core:
- Export add/remove for lookup tables so that modules can export GPIO
descriptor tables.
- Handle GPIO sleep states: it is now possible to flag that a GPIO
line may loose its state during suspend/resume of the system to
save power. This is used in the Wolfson Micro Arizona driver.
- ACPI-based GPIO was tightened up a lot around the edges.
- Use bitmap_fill() to speed up a loop.
New drivers:
- Exar XRA1403 SPI-based GPIO.
- MVEBU driver now supports Armada 7K and 8K.
- LP87565 PMIC GPIO.
- Renesas R-CAR R8A7743 (RZ/G1M).
- The new IOT2040 8250 serial/GPIO also comes in through this
changeset.
Substantial driver changes:
- Seriously fix the Exar 8250 GPIO portions to work.
- The MCP23S08 was moved out to a pin control driver.
- Convert MEVEBU to use regmap for register access.
- Drop Vulcan support from the Broadcom driver.
- Serious cleanup and improvement of the mockup driver, giving us a
better test coverage.
Misc:
- Lots of janitorial clean up.
- A bunch of documentation fixes"
* tag 'gpio-v4.13-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (70 commits)
serial: exar: Add support for IOT2040 device
gpio-exar/8250-exar: Make set of exported GPIOs configurable
platform: Accept const properties
serial: exar: Factor out platform hooks
gpio-exar/8250-exar: Rearrange gpiochip parenthood
gpio: exar: Fix iomap request
gpio-exar/8250-exar: Do not even instantiate a GPIO device for Commtech cards
serial: uapi: Add support for bus termination
gpio: rcar: Add R8A7743 (RZ/G1M) support
gpio: gpio-wcove: Fix GPIO control register offset calculation
gpio: lp87565: Add support for GPIO
gpio: dwapb: fix missing first irq for edgeboth irq type
MAINTAINERS: Take maintainership for GPIO ACPI support
gpio: exar: Fix reading of directions and values
gpio: exar: Allocate resources on behalf of the platform device
gpio-exar/8250-exar: Fix passing in of parent PCI device
gpio: mockup: use devm_kcalloc() where applicable
gpio: mockup: add myself as author
gpio: mockup: improve the error message
gpio: mockup: don't return magic numbers from probe()
...
some new clk drivers and updates for old ones. The diff is pretty
spread out across a handful of different SoC clk drivers for Broadcom, TI,
Qualcomm, Renesas, Rockchip, Samsung, and Allwinner, mostly due to the
introduction of new drivers.
Core:
- New clk bulk get APIs
- Clk divider APIs gained the ability to consider a different parent than
the current one
New Drivers:
- Renesas r8a779{0,1,2,4} CPG/MSSR
- TI Keystone SCI firmware controlled clks and OMAP4 clkctrl
- Qualcomm IPQ8074 SoCs
- Cortina Systems Gemini (SL3516/CS3516)
- Rockchip rk3128 SoCs
- Allwinner A83T clk control units
- Broadcom Stingray SoCs
- CPU clks for Mediatek MT8173/MT2701/MT7623 SoCs
Removed Drivers:
- Old non-DT version of the Realview clk driver
Updates:
- Renesas Kconfig/Makefile cleanups
- Amlogic CEC EE clk support
- Improved Armada 7K/8K cp110 clk support
- Rockchip clk id exposing, critical clk markings
- Samsung converted to clk_hw registration APIs
- Fixes for Samsung exynos5420 audio clks
- USB2 clks for Hisilicon hi3798cv200 SoC and video/camera clks for hi3660
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk updates from Stephen Boyd:
"This time we've got one core change to introduce a bulk clk_get API,
some new clk drivers and updates for old ones. The diff is pretty
spread out across a handful of different SoC clk drivers for Broadcom,
TI, Qualcomm, Renesas, Rockchip, Samsung, and Allwinner, mostly due to
the introduction of new drivers.
Core:
- New clk bulk get APIs
- Clk divider APIs gained the ability to consider a different parent
than the current one
New Drivers:
- Renesas r8a779{0,1,2,4} CPG/MSSR
- TI Keystone SCI firmware controlled clks and OMAP4 clkctrl
- Qualcomm IPQ8074 SoCs
- Cortina Systems Gemini (SL3516/CS3516)
- Rockchip rk3128 SoCs
- Allwinner A83T clk control units
- Broadcom Stingray SoCs
- CPU clks for Mediatek MT8173/MT2701/MT7623 SoCs
Removed Drivers:
- Old non-DT version of the Realview clk driver
Updates:
- Renesas Kconfig/Makefile cleanups
- Amlogic CEC EE clk support
- Improved Armada 7K/8K cp110 clk support
- Rockchip clk id exposing, critical clk markings
- Samsung converted to clk_hw registration APIs
- Fixes for Samsung exynos5420 audio clks
- USB2 clks for Hisilicon hi3798cv200 SoC and video/camera clks for
hi3660"
* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (147 commits)
clk: gemini: Read status before using the value
clk: scpi: error when clock fails to register
clk: at91: Add sama5d2 suspend/resume
gpio: dt-bindings: Add documentation for gpio controllers on Armada 7K/8K
clk: keystone: TI_SCI_PROTOCOL is needed for clk driver
clk: samsung: audss: Fix silent hang on Exynos4412 due to disabled EPLL
clk: uniphier: provide NAND controller clock rate
clk: hisilicon: add usb2 clocks for hi3798cv200 SoC
clk: Add Gemini SoC clock controller
clk: iproc: Remove __init marking on iproc_pll_clk_setup()
clk: bcm: Add clocks for Stingray SOC
dt-bindings: clk: Extend binding doc for Stingray SOC
clk: mediatek: export cpu multiplexer clock for MT8173 SoCs
clk: mediatek: export cpu multiplexer clock for MT2701/MT7623 SoCs
clk: mediatek: add missing cpu mux causing Mediatek cpufreq can't work
clk: renesas: cpg-mssr: Use of_device_get_match_data() helper
clk: hi6220: add acpu clock
clk: zx296718: export I2S mux clocks
clk: imx7d: create clocks behind rawnand clock gate
clk: hi3660: Set PPLL2 to 2880M
...
- vsprintf format specifier %pOF for device_node's. This will enable us
to stop storing the full node names. Conversion of users will happen
next cycle.
- Update documentation to point to DT specification instead of ePAPR.
- Split out graph and property functions to a separate file.
- New of-graph functions for ALSA
- Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull,
Itead, and BananaPi.
- Improve dtx_diff utility filename printing.
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Merge tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux
Pull DeviceTree updates from Rob Herring:
- vsprintf format specifier %pOF for device_node's. This will enable us
to stop storing the full node names. Conversion of users will happen
next cycle.
- Update documentation to point to DT specification instead of ePAPR.
- Split out graph and property functions to a separate file.
- New of-graph functions for ALSA
- Add vendor prefixes for RISC-V, Linksys, iWave Systems, Roofull,
Itead, and BananaPi.
- Improve dtx_diff utility filename printing.
* tag 'devicetree-for-4.13' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (32 commits)
of: document /sys/firmware/fdt
dt-bindings: Add RISC-V vendor prefix
vsprintf: Add %p extension "%pOF" for device tree
of: find_node_by_full_name rewrite to compare each level
of: use kbasename instead of open coding
dt-bindings: thermal: add file extension to brcm,ns-thermal
of: update ePAPR references to point to Devicetree Specification
scripts/dtc: dtx_diff - Show real file names in diff header
of: detect invalid phandle in overlay
of: be consistent in form of file mode
of: make __of_attach_node() static
of: address.c header comment typo
of: fdt.c header comment typo
of: make of_fdt_is_compatible() static
dt-bindings: display-timing.txt convert non-ascii characters to ascii
Documentation: remove overlay-notes reference to non-existent file
dt-bindings: usb: exynos-usb: Add missing required VDD properties
dt-bindings: Add vendor prefix for Linksys
MAINTAINERS: add device tree ABI documentation file
of: Add vendor prefix for iWave Systems Technologies Pvt. Ltd
...
In this patch, we add a new sysfs interface, with it, we can control
number of reserved blocks in system which could not be used by user,
it enable f2fs to let user to configure for adjusting over-provision
ratio dynamically instead of changing it by mkfs.
So we can expect it will help to reserve more free space for relieving
GC in both filesystem and flash device.
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Pull mailbox updates from Jassi Brar:
- Minor improvement : avoid requiring unnecessary startup/shutdown
callback that many drivers seem to not need
- New controller driver for Qualcomm's APCS IPC
* 'mailbox-for-next' of git://git.linaro.org/landing-teams/working/fujitsu/integration:
mailbox: Introduce Qualcomm APCS IPC driver
dt-bindings: mailbox: Introduce Qualcomm APCS global binding
mailbox: Make startup and shutdown ops optional
Many RTCs have an on board non volatile storage. It can be battery backed
RAM or an EEPROM. Use the nvmem subsystem to export it to both userspace
and in-kernel consumers.
This stays compatible with the previous (non documented) ABI that was using
/sys/class/rtc/rtcx/device/nvram to export that memory. But will warn about
the deprecation.
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Merge misc updates from Andrew Morton:
- a few hotfixes
- various misc updates
- ocfs2 updates
- most of MM
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (108 commits)
mm, memory_hotplug: move movable_node to the hotplug proper
mm, memory_hotplug: drop CONFIG_MOVABLE_NODE
mm, memory_hotplug: drop artificial restriction on online/offline
mm: memcontrol: account slab stats per lruvec
mm: memcontrol: per-lruvec stats infrastructure
mm: memcontrol: use generic mod_memcg_page_state for kmem pages
mm: memcontrol: use the node-native slab memory counters
mm: vmstat: move slab statistics from zone to node counters
mm/zswap.c: delete an error message for a failed memory allocation in zswap_dstmem_prepare()
mm/zswap.c: improve a size determination in zswap_frontswap_init()
mm/zswap.c: delete an error message for a failed memory allocation in zswap_pool_create()
mm/swapfile.c: sort swap entries before free
mm/oom_kill: count global and memory cgroup oom kills
mm: per-cgroup memory reclaim stats
mm: kmemleak: treat vm_struct as alternative reference to vmalloc'ed objects
mm: kmemleak: factor object reference updating out of scan_block()
mm: kmemleak: slightly reduce the size of some structures on 64-bit architectures
mm, mempolicy: don't check cpuset seqlock where it doesn't matter
mm, cpuset: always use seqlock when changing task's nodemask
mm, mempolicy: simplify rebinding mempolicies when updating cpusets
...
In this new subsystem we'll try to properly maintain all the generic
code related to dma-mapping, and will further consolidate arch code
into common helpers.
This pull request contains:
- removal of the DMA_ERROR_CODE macro, replacing it with calls
to ->mapping_error so that the dma_map_ops instances are
more self contained and can be shared across architectures (me)
- removal of the ->set_dma_mask method, which duplicates the
->dma_capable one in terms of functionality, but requires more
duplicate code.
- various updates for the coherent dma pool and related arm code
(Vladimir)
- various smaller cleanups (me)
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Merge tag 'dma-mapping-4.13' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping infrastructure from Christoph Hellwig:
"This is the first pull request for the new dma-mapping subsystem
In this new subsystem we'll try to properly maintain all the generic
code related to dma-mapping, and will further consolidate arch code
into common helpers.
This pull request contains:
- removal of the DMA_ERROR_CODE macro, replacing it with calls to
->mapping_error so that the dma_map_ops instances are more self
contained and can be shared across architectures (me)
- removal of the ->set_dma_mask method, which duplicates the
->dma_capable one in terms of functionality, but requires more
duplicate code.
- various updates for the coherent dma pool and related arm code
(Vladimir)
- various smaller cleanups (me)"
* tag 'dma-mapping-4.13' of git://git.infradead.org/users/hch/dma-mapping: (56 commits)
ARM: dma-mapping: Remove traces of NOMMU code
ARM: NOMMU: Set ARM_DMA_MEM_BUFFERABLE for M-class cpus
ARM: NOMMU: Introduce dma operations for noMMU
drivers: dma-mapping: allow dma_common_mmap() for NOMMU
drivers: dma-coherent: Introduce default DMA pool
drivers: dma-coherent: Account dma_pfn_offset when used with device tree
dma: Take into account dma_pfn_offset
dma-mapping: replace dmam_alloc_noncoherent with dmam_alloc_attrs
dma-mapping: remove dmam_free_noncoherent
crypto: qat - avoid an uninitialized variable warning
au1100fb: remove a bogus dma_free_nonconsistent call
MAINTAINERS: add entry for dma mapping helpers
powerpc: merge __dma_set_mask into dma_set_mask
dma-mapping: remove the set_dma_mask method
powerpc/cell: use the dma_supported method for ops switching
powerpc/cell: clean up fixed mapping dma_ops initialization
tile: remove dma_supported and mapping_error methods
xen-swiotlb: remove xen_swiotlb_set_dma_mask
arm: implement ->dma_supported instead of ->set_dma_mask
mips/loongson64: implement ->dma_supported instead of ->set_dma_mask
...
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Merge tag 'for-linus-4.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
"Other than fixes and cleanups it contains:
- support > 32 VCPUs at domain restore
- support for new sysfs nodes related to Xen
- some performance tuning for Linux running as Xen guest"
* tag 'for-linus-4.13-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
x86/xen: allow userspace access during hypercalls
x86: xen: remove unnecessary variable in xen_foreach_remap_area()
xen: allocate page for shared info page from low memory
xen: avoid deadlock in xenbus driver
xen: add sysfs node for hypervisor build id
xen: sync include/xen/interface/version.h
xen: add sysfs node for guest type
doc,xen: document hypervisor sysfs nodes for xen
xen/vcpu: Handle xen_vcpu_setup() failure at boot
xen/vcpu: Handle xen_vcpu_setup() failure in hotplug
xen/pv: Fix OOPS on restore for a PV, !SMP domain
xen/pvh*: Support > 32 VCPUs at domain restore
xen/vcpu: Simplify xen_vcpu related code
xen-evtchn: Bind dyn evtchn:qemu-dm interrupt to next online VCPU
xen: avoid type warning in xchg_xen_ulong
xen: fix HYPERVISOR_dm_op() prototype
xen: don't print error message in case of missing Xenstore entry
arm/xen: Adjust one function call together with a variable assignment
arm/xen: Delete an error message for a failed memory allocation in __set_phys_to_machine_multi()
arm/xen: Improve a size determination in __set_phys_to_machine_multi()
