- Add keep_last_dots mount option to allow access to paths with trailing dots.
- Avoid repetitive volume dirty bit set/clear to improve storage life time.
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Merge tag 'exfat-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat
Pull exfat updates from Namjae Jeon:
- Add keep_last_dots mount option to allow access to paths with
trailing dots
- Avoid repetitive volume dirty bit set/clear to improve storage life
time
* tag 'exfat-for-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/linkinjeon/exfat:
exfat: do not clear VolumeDirty in writeback
exfat: allow access to paths with trailing dots
- Remove ->readpages infrastructure
- Remove AOP_FLAG_CONT_EXPAND
- Move read_descriptor_t to networking code
- Pass the iocb to generic_perform_write
- Minor updates to iomap, btrfs, ext4, f2fs, ntfs
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Merge tag 'folio-5.18d' of git://git.infradead.org/users/willy/pagecache
Pull more filesystem folio updates from Matthew Wilcox:
"A mixture of odd changes that didn't quite make it into the original
pull and fixes for things that did. Also the readpages changes had to
wait for the NFS tree to be pulled first.
- Remove ->readpages infrastructure
- Remove AOP_FLAG_CONT_EXPAND
- Move read_descriptor_t to networking code
- Pass the iocb to generic_perform_write
- Minor updates to iomap, btrfs, ext4, f2fs, ntfs"
* tag 'folio-5.18d' of git://git.infradead.org/users/willy/pagecache:
btrfs: Remove a use of PAGE_SIZE in btrfs_invalidate_folio()
ntfs: Correct mark_ntfs_record_dirty() folio conversion
f2fs: Get the superblock from the mapping instead of the page
f2fs: Correct f2fs_dirty_data_folio() conversion
ext4: Correct ext4_journalled_dirty_folio() conversion
filemap: Remove AOP_FLAG_CONT_EXPAND
fs: Pass an iocb to generic_perform_write()
fs, net: Move read_descriptor_t to net.h
fs: Remove read_actor_t
iomap: Simplify is_partially_uptodate a little
readahead: Update comments
mm: remove the skip_page argument to read_pages
mm: remove the pages argument to read_pages
fs: Remove ->readpages address space operation
readahead: Remove read_cache_pages()
- Documentation update
- Fix test-suite build after move of bitmap.h
- Fix xas_create_range() when a large entry is already present
- Fix xas_split() of a shadow entry
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Merge tag 'xarray-5.18' of git://git.infradead.org/users/willy/xarray
Pull XArray updates from Matthew Wilcox:
- Documentation update
- Fix test-suite build after move of bitmap.h
- Fix xas_create_range() when a large entry is already present
- Fix xas_split() of a shadow entry
* tag 'xarray-5.18' of git://git.infradead.org/users/willy/xarray:
XArray: Update the LRU list in xas_split()
XArray: Fix xas_create_range() when multi-order entry present
XArray: Include bitmap.h from xarray.h
XArray: Document the locking requirement for the xa_state
This has a handful of new features
* Support for CURRENT_STACK_POINTER, which enables some extra stack
debugging for HARDENED_USERCOPY.
* Support for the new SBI CPU idle extension, via cpuidle and suspend
drivers.
* Profiling has been enabled in the defconfigs.
but is mostly fixes and cleanups.
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Merge tag 'riscv-for-linus-5.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
"This has a handful of new features:
- Support for CURRENT_STACK_POINTER, which enables some extra stack
debugging for HARDENED_USERCOPY.
- Support for the new SBI CPU idle extension, via cpuidle and suspend
drivers.
- Profiling has been enabled in the defconfigs.
but is mostly fixes and cleanups"
* tag 'riscv-for-linus-5.18-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (21 commits)
RISC-V: K210 defconfigs: Drop redundant MEMBARRIER=n
RISC-V: defconfig: Drop redundant SBI HVC and earlycon
Documentation: riscv: remove non-existent directory from table of contents
riscv: cpu.c: don't use kernel-doc markers for comments
RISC-V: Enable profiling by default
RISC-V: module: fix apply_r_riscv_rcv_branch_rela typo
RISC-V: Declare per cpu boot data as static
RISC-V: Fix a comment typo in riscv_of_parent_hartid()
riscv: Increase stack size under KASAN
riscv: Fix fill_callchain return value
riscv: dts: canaan: Fix SPI3 bus width
riscv: Rename "sp_in_global" to "current_stack_pointer"
riscv module: remove (NOLOAD)
RISC-V: Enable RISC-V SBI CPU Idle driver for QEMU virt machine
dt-bindings: Add common bindings for ARM and RISC-V idle states
cpuidle: Add RISC-V SBI CPU idle driver
cpuidle: Factor-out power domain related code from PSCI domain driver
RISC-V: Add SBI HSM suspend related defines
RISC-V: Add arch functions for non-retentive suspend entry/exit
RISC-V: Rename relocate() and make it global
...
- Add kretprobes framepointer verification and return address recovery
in stacktrace.
- Support control domain masks on custom zcrypt devices and filter admin
requests.
- Cleanup timer API usage.
- Rework absolute lowcore access helpers.
- Other various small improvements and fixes.
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Merge tag 's390-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:
- Add kretprobes framepointer verification and return address recovery
in stacktrace.
- Support control domain masks on custom zcrypt devices and filter
admin requests.
- Cleanup timer API usage.
- Rework absolute lowcore access helpers.
- Other various small improvements and fixes.
* tag 's390-5.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (26 commits)
s390/alternatives: avoid using jgnop mnemonic
s390/pci: rename get_zdev_by_bus() to zdev_from_bus()
s390/pci: improve zpci_dev reference counting
s390/smp: use physical address for SIGP_SET_PREFIX command
s390: cleanup timer API use
s390/zcrypt: fix using the correct variable for sizeof()
s390/vfio-ap: fix kernel doc and signature of group notifier functions
s390/maccess: rework absolute lowcore accessors
s390/smp: cleanup control register update routines
s390/smp: cleanup target CPU callback starting
s390/test_unwind: verify __kretprobe_trampoline is replaced
s390/unwind: avoid duplicated unwinding entries for kretprobes
s390/unwind: recover kretprobe modified return address in stacktrace
s390/kprobes: enable kretprobes framepointer verification
s390/test_unwind: extend kretprobe test
s390/ap: adjust whitespace
s390/ap: use insn format for new instructions
s390/alternatives: use insn format for new instructions
s390/alternatives: use instructions instead of byte patterns
s390/traps: improve panic message for translation-specification exception
...
The introduction of vmap-stack on 32-bit arm caused a regression
on a few omap3/omap4 machines that pass a stack variable into
a firmware interface.
The early pre-ACPI AMD Seattle machines have been broken for
a while, Ard Biesheuvel has a series to bring them back for now.
A few machines with multiple DMA channels used on a device have
the channels in the wrong order according to the binding, which
causes a harmless warning. Reversing the order is easier than
fixing the tools to suppress the warning.
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Merge tag 'soc-fixes-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd BergmannL
"The introduction of vmap-stack on 32-bit arm caused a regression on a
few omap3/omap4 machines that pass a stack variable into a firmware
interface.
The early pre-ACPI AMD Seattle machines have been broken for a while,
Ard Biesheuvel has a series to bring them back for now.
A few machines with multiple DMA channels used on a device have the
channels in the wrong order according to the binding, which causes a
harmless warning. Reversing the order is easier than fixing the tools
to suppress the warning"
* tag 'soc-fixes-5.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
arm64: dts: ls1046a: Update i2c node dma properties
arm64: dts: ls1043a: Update i2c dma properties
ARM: dts: spear1340: Update serial node properties
ARM: dts: spear13xx: Update SPI dma properties
ARM: OMAP2+: Fix regression for smc calls for vmap stack
dt: amd-seattle: add a description of the CPUs and caches
dt: amd-seattle: disable IPMI controller and some GPIO blocks on B0
dt: amd-seattle: add description of the SATA/CCP SMMUs
dt: amd-seattle: add a description of the PCIe SMMU
dt: amd-seattle: fix PCIe legacy interrupt routing
dt: amd-seattle: upgrade AMD Seattle XGBE to new SMMU binding
dt: amd-seattle: remove Overdrive revision A0 support
dt: amd-seattle: remove Husky platform
Merge still more updates from Andrew Morton:
"16 patches.
Subsystems affected by this patch series: ofs2, nilfs2, mailmap, and
mm (madvise, mlock, mfence, memory-failure, kasan, debug, kmemleak,
and damon)"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/damon: prevent activated scheme from sleeping by deactivated schemes
mm/kmemleak: reset tag when compare object pointer
doc/vm/page_owner.rst: remove content related to -c option
tools/vm/page_owner_sort.c: remove -c option
mm, kasan: fix __GFP_BITS_SHIFT definition breaking LOCKDEP
mm,hwpoison: unmap poisoned page before invalidation
mailmap: update Kirill's email
mm: kfence: fix objcgs vector allocation
mm/munlock: protect the per-CPU pagevec by a local_lock_t
mm/munlock: update Documentation/vm/unevictable-lru.rst
mm/munlock: add lru_add_drain() to fix memcg_stat_test
nilfs2: get rid of nilfs_mapping_init()
nilfs2: fix lockdep warnings during disk space reclamation
nilfs2: fix lockdep warnings in page operations for btree nodes
ocfs2: fix crash when mount with quota enabled
Revert "mm: madvise: skip unmapped vma holes passed to process_madvise"
In the DAMON, the minimum wait time of the schemes decides whether the
kernel wakes up 'kdamon_fn()'. But since the minimum wait time is
initialized to zero, there are corner cases against the original
objective.
For example, if we have several schemes for one target, and if the wait
time of the first scheme is zero, the minimum wait time will set zero,
which means 'kdamond_fn()' should wake up to apply this scheme.
However, in the following scheme, wait time can be set to non-zero.
Thus, the mininum wait time will be set to non-zero, which can cause
sleeping this interval for 'kdamon_fn()' due to one deactivated last
scheme.
This commit prevents making DAMON monitoring inactive state due to other
deactivated schemes.
Link: https://lkml.kernel.org/r/20220330105302.32114-1-tome01@ajou.ac.kr
Signed-off-by: Jonghyeon Kim <tome01@ajou.ac.kr>
Reviewed-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When we use HW-tag based kasan and enable vmalloc support, we hit the
following bug. It is due to comparison between tagged object and
non-tagged pointer.
We need to reset the kasan tag when we need to compare tagged object and
non-tagged pointer.
kmemleak: [name:kmemleak&]Scan area larger than object 0xffffffe77076f440
CPU: 4 PID: 1 Comm: init Tainted: G S W 5.15.25-android13-0-g5cacf919c2bc #1
Hardware name: MT6983(ENG) (DT)
Call trace:
add_scan_area+0xc4/0x244
kmemleak_scan_area+0x40/0x9c
layout_and_allocate+0x1e8/0x288
load_module+0x2c8/0xf00
__se_sys_finit_module+0x190/0x1d0
__arm64_sys_finit_module+0x20/0x30
invoke_syscall+0x60/0x170
el0_svc_common+0xc8/0x114
do_el0_svc+0x28/0xa0
el0_svc+0x60/0xf8
el0t_64_sync_handler+0x88/0xec
el0t_64_sync+0x1b4/0x1b8
kmemleak: [name:kmemleak&]Object 0xf5ffffe77076b000 (size 32768):
kmemleak: [name:kmemleak&] comm "init", pid 1, jiffies 4294894197
kmemleak: [name:kmemleak&] min_count = 0
kmemleak: [name:kmemleak&] count = 0
kmemleak: [name:kmemleak&] flags = 0x1
kmemleak: [name:kmemleak&] checksum = 0
kmemleak: [name:kmemleak&] backtrace:
module_alloc+0x9c/0x120
move_module+0x34/0x19c
layout_and_allocate+0x1c4/0x288
load_module+0x2c8/0xf00
__se_sys_finit_module+0x190/0x1d0
__arm64_sys_finit_module+0x20/0x30
invoke_syscall+0x60/0x170
el0_svc_common+0xc8/0x114
do_el0_svc+0x28/0xa0
el0_svc+0x60/0xf8
el0t_64_sync_handler+0x88/0xec
el0t_64_sync+0x1b4/0x1b8
Link: https://lkml.kernel.org/r/20220318034051.30687-1-Kuan-Ying.Lee@mediatek.com
Signed-off-by: Kuan-Ying Lee <Kuan-Ying.Lee@mediatek.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: Chinwen Chang <chinwen.chang@mediatek.com>
Cc: Nicholas Tang <nicholas.tang@mediatek.com>
Cc: Yee Lee <yee.lee@mediatek.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-c option has been removed from page_owner_sort.c.
Remove the usage of -c option from Documentation.
This work is coauthored by
Shenghong Han
Yixuan Cao
Chongxi Zhao
Jiajian Ye
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220326085920.1470081-2-zhangyinan2019@email.szu.edu.cn
Signed-off-by: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Tang Bin <tangbin@cmss.chinamobile.com>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The -c option is used to cull by stacktrace. Now, --cull option has
been Added in page_owner_sort.c. Culling by stacktrace is one of the
function of "--cull". No need to set an extra parameter. So remove -c
option.
Remove parsing of -c when parse parameter and remove "-c" from usage.
This work is coauthored by
Shenghong Han
Yixuan Cao
Chongxi Zhao
Jiajian Ye
Yuhong Feng
Yongqiang Liu
Link: https://lkml.kernel.org/r/20220326085920.1470081-1-zhangyinan2019@email.szu.edu.cn
Signed-off-by: Yinan Zhang <zhangyinan2019@email.szu.edu.cn>
Cc: Chongxi Zhao <zhaochongxi2019@email.szu.edu.cn>
Cc: Georgi Djakov <georgi.djakov@linaro.org>
Cc: Jiajian Ye <yejiajian2018@email.szu.edu.cn>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sean Anderson <seanga2@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Tang Bin <tangbin@cmss.chinamobile.com>
Cc: Yixuan Cao <caoyixuan2019@email.szu.edu.cn>
Cc: Yongqiang Liu <liuyongqiang13@huawei.com>
Cc: Yuhong Feng <yuhongf@szu.edu.cn>
Cc: Zhenliang Wei <weizhenliang@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
KASAN changes that added new GFP flags mistakenly updated
__GFP_BITS_SHIFT as the total number of GFP bits instead of as a shift
used to define __GFP_BITS_MASK.
This broke LOCKDEP, as __GFP_BITS_MASK now gets the 25th bit enabled
instead of the 28th for __GFP_NOLOCKDEP.
Update __GFP_BITS_SHIFT to always count KASAN GFP bits.
In the future, we could handle all combinations of KASAN and LOCKDEP to
occupy as few bits as possible. For now, we have enough GFP bits to be
inefficient in this quick fix.
Link: https://lkml.kernel.org/r/462ff52742a1fcc95a69778685737f723ee4dfb3.1648400273.git.andreyknvl@google.com
Fixes: 9353ffa6e9 ("kasan, page_alloc: allow skipping memory init for HW_TAGS")
Fixes: 53ae233c30 ("kasan, page_alloc: allow skipping unpoisoning for HW_TAGS")
Fixes: f49d9c5bb1 ("kasan, mm: only define ___GFP_SKIP_KASAN_POISON with HW_TAGS")
Signed-off-by: Andrey Konovalov <andreyknvl@google.com>
Reported-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Tested-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Cc: Marco Elver <elver@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In some cases it appears the invalidation of a hwpoisoned page fails
because the page is still mapped in another process. This can cause a
program to be continuously restarted and die when it page faults on the
page that was not invalidated. Avoid that problem by unmapping the
hwpoisoned page when we find it.
Another issue is that sometimes we end up oopsing in finish_fault, if
the code tries to do something with the now-NULL vmf->page. I did not
hit this error when submitting the previous patch because there are
several opportunities for alloc_set_pte to bail out before accessing
vmf->page, and that apparently happened on those systems, and most of
the time on other systems, too.
However, across several million systems that error does occur a handful
of times a day. It can be avoided by returning VM_FAULT_NOPAGE which
will cause do_read_fault to return before calling finish_fault.
Link: https://lkml.kernel.org/r/20220325161428.5068d97e@imladris.surriel.com
Fixes: e53ac7374e ("mm: invalidate hwpoison page cache page in fault path")
Signed-off-by: Rik van Riel <riel@surriel.com>
Reviewed-by: Miaohe Lin <linmiaohe@huawei.com>
Tested-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Reviewed-by: Oscar Salvador <osalvador@suse.de>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If the kfence object is allocated to be used for objects vector, then
this slot of the pool eventually being occupied permanently since the
vector is never freed. The solutions could be (1) freeing vector when
the kfence object is freed or (2) allocating all vectors statically.
Since the memory consumption of object vectors is low, it is better to
chose (2) to fix the issue and it is also can reduce overhead of vectors
allocating in the future.
Link: https://lkml.kernel.org/r/20220328132843.16624-1-songmuchun@bytedance.com
Fixes: d3fb45f370 ("mm, kfence: insert KFENCE hooks for SLAB")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Reviewed-by: Marco Elver <elver@google.com>
Reviewed-by: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Alexander Potapenko <glider@google.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Xiongchun Duan <duanxiongchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The access to mlock_pvec is protected by disabling preemption via
get_cpu_var() or implicit by having preemption disabled by the caller
(in mlock_page_drain() case). This breaks on PREEMPT_RT since
folio_lruvec_lock_irq() acquires a sleeping lock in this section.
Create struct mlock_pvec which consits of the local_lock_t and the
pagevec. Acquire the local_lock() before accessing the per-CPU pagevec.
Replace mlock_page_drain() with a _local() version which is invoked on
the local CPU and acquires the local_lock_t and a _remote() version
which uses the pagevec from a remote CPU which offline.
Link: https://lkml.kernel.org/r/YjizWi9IY0mpvIfb@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Update Documentation/vm/unevictable-lru.rst to reflect the changes made
by the mm/munlock series: keeping an mlock_count instead of page_mlock()
(formerly try_to_munlock()) and munlock_vma_pages_all() etc. Also make
other little updates or cleanups wherever noticed.
But, I apologize, this is already out of date, in that "folio" appears
nowhere: 5.18 will be in a transitional state from "page" to "folio",
and documenting its current mix of the two does not help to understand
"the Unevictable LRU". Should be revisited when naming is more settled.
Link: https://lkml.kernel.org/r/3753962-d491-bf60-f59f-51bfe84fd6a0@google.com
Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: "Kirill A. Shutemov" <kirill@shutemov.name>
Cc: David Hildenbrand <david@redhat.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Rik van Riel <riel@surriel.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: Greg Thelen <gthelen@google.com>
Cc: Shakeel Butt <shakeelb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Mike reports that LTP memcg_stat_test usually leads to
memcg_stat_test 3 TINFO: Test unevictable with MAP_LOCKED
memcg_stat_test 3 TINFO: Running memcg_process --mmap-lock1 -s 135168
memcg_stat_test 3 TINFO: Warming up pid: 3460
memcg_stat_test 3 TINFO: Process is still here after warm up: 3460
memcg_stat_test 3 TFAIL: unevictable is 122880, 135168 expected
but may also lead to
memcg_stat_test 4 TINFO: Test unevictable with mlock
memcg_stat_test 4 TINFO: Running memcg_process --mmap-lock2 -s 135168
memcg_stat_test 4 TINFO: Warming up pid: 4271
memcg_stat_test 4 TINFO: Process is still here after warm up: 4271
memcg_stat_test 4 TFAIL: unevictable is 122880, 135168 expected
or both. A wee bit flaky.
follow_page_pte() used to have an lru_add_drain() per each page mlocked,
and the test came to rely on accurate stats. The pagevec to be drained
is different now, but still covered by lru_add_drain(); and, never mind
the test, I believe it's in everyone's interest that a bulk faulting
interface like populate_vma_page_range() or faultin_vma_page_range()
should drain its local pagevecs at the end, to save others sometimes
needing the much more expensive lru_add_drain_all().
This does not absolutely guarantee exact stats - the mlocking task can
be migrated between CPUs as it proceeds - but it's good enough and the
tests pass.
Link: https://lkml.kernel.org/r/47f6d39c-a075-50cb-1cfb-26dd957a48af@google.com
Fixes: b67bf49ce7 ("mm/munlock: delete FOLL_MLOCK and FOLL_POPULATE")
Signed-off-by: Hugh Dickins <hughd@google.com>
Reported-by: Mike Galbraith <efault@gmx.de>
Cc: Vlastimil Babka <vbabka@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
After applying the lockdep warning fixes, nilfs_mapping_init() is no
longer used, so delete it.
Link: https://lkml.kernel.org/r/1647867427-30498-4-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hao Sun <sunhao.th@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
During disk space reclamation, nilfs2 still emits the following lockdep
warning due to page/folio operations on shadowed page caches that nilfs2
uses to get a snapshot of DAT file in memory:
WARNING: CPU: 0 PID: 2643 at include/linux/backing-dev.h:272 __folio_mark_dirty+0x645/0x670
...
RIP: 0010:__folio_mark_dirty+0x645/0x670
...
Call Trace:
filemap_dirty_folio+0x74/0xd0
__set_page_dirty_nobuffers+0x85/0xb0
nilfs_copy_dirty_pages+0x288/0x510 [nilfs2]
nilfs_mdt_save_to_shadow_map+0x50/0xe0 [nilfs2]
nilfs_clean_segments+0xee/0x5d0 [nilfs2]
nilfs_ioctl_clean_segments.isra.19+0xb08/0xf40 [nilfs2]
nilfs_ioctl+0xc52/0xfb0 [nilfs2]
__x64_sys_ioctl+0x11d/0x170
This fixes the remaining warning by using inode objects to hold those
page caches.
Link: https://lkml.kernel.org/r/1647867427-30498-3-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hao Sun <sunhao.th@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "nilfs2 lockdep warning fixes".
The first two are to resolve the lockdep warning issue, and the last one
is the accompanying cleanup and low priority.
Based on your comment, this series solves the issue by separating inode
object as needed. Since I was worried about the impact of the object
composition changes, I tested the series carefully not to cause
regressions especially for delicate functions such like disk space
reclamation and snapshots.
This patch (of 3):
If CONFIG_LOCKDEP is enabled, nilfs2 hits lockdep warnings at
inode_to_wb() during page/folio operations for btree nodes:
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 inode_to_wb include/linux/backing-dev.h:269 [inline]
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 folio_account_dirtied mm/page-writeback.c:2460 [inline]
WARNING: CPU: 0 PID: 6575 at include/linux/backing-dev.h:269 __folio_mark_dirty+0xa7c/0xe30 mm/page-writeback.c:2509
Modules linked in:
...
RIP: 0010:inode_to_wb include/linux/backing-dev.h:269 [inline]
RIP: 0010:folio_account_dirtied mm/page-writeback.c:2460 [inline]
RIP: 0010:__folio_mark_dirty+0xa7c/0xe30 mm/page-writeback.c:2509
...
Call Trace:
__set_page_dirty include/linux/pagemap.h:834 [inline]
mark_buffer_dirty+0x4e6/0x650 fs/buffer.c:1145
nilfs_btree_propagate_p fs/nilfs2/btree.c:1889 [inline]
nilfs_btree_propagate+0x4ae/0xea0 fs/nilfs2/btree.c:2085
nilfs_bmap_propagate+0x73/0x170 fs/nilfs2/bmap.c:337
nilfs_collect_dat_data+0x45/0xd0 fs/nilfs2/segment.c:625
nilfs_segctor_apply_buffers+0x14a/0x470 fs/nilfs2/segment.c:1009
nilfs_segctor_scan_file+0x47a/0x700 fs/nilfs2/segment.c:1048
nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1224 [inline]
nilfs_segctor_collect fs/nilfs2/segment.c:1494 [inline]
nilfs_segctor_do_construct+0x14f3/0x6c60 fs/nilfs2/segment.c:2036
nilfs_segctor_construct+0x7a7/0xb30 fs/nilfs2/segment.c:2372
nilfs_segctor_thread_construct fs/nilfs2/segment.c:2480 [inline]
nilfs_segctor_thread+0x3c3/0xf90 fs/nilfs2/segment.c:2563
kthread+0x405/0x4f0 kernel/kthread.c:327
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
This is because nilfs2 uses two page caches for each inode and
inode->i_mapping never points to one of them, the btree node cache.
This causes inode_to_wb(inode) to refer to a different page cache than
the caller page/folio operations such like __folio_start_writeback(),
__folio_end_writeback(), or __folio_mark_dirty() acquired the lock.
This patch resolves the issue by allocating and using an additional
inode to hold the page cache of btree nodes. The inode is attached
one-to-one to the traditional nilfs2 inode if it requires a block
mapping with b-tree. This setup change is in memory only and does not
affect the disk format.
Link: https://lkml.kernel.org/r/1647867427-30498-1-git-send-email-konishi.ryusuke@gmail.com
Link: https://lkml.kernel.org/r/1647867427-30498-2-git-send-email-konishi.ryusuke@gmail.com
Link: https://lore.kernel.org/r/YXrYvIo8YRnAOJCj@casper.infradead.org
Link: https://lore.kernel.org/r/9a20b33d-b38f-b4a2-4742-c1eb5b8e4d6c@redhat.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Reported-by: syzbot+0d5b462a6f07447991b3@syzkaller.appspotmail.com
Reported-by: syzbot+34ef28bb2aeb28724aa0@syzkaller.appspotmail.com
Reported-by: Hao Sun <sunhao.th@gmail.com>
Reported-by: David Hildenbrand <david@redhat.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There is a reported crash when mounting ocfs2 with quota enabled.
RIP: 0010:ocfs2_qinfo_lock_res_init+0x44/0x50 [ocfs2]
Call Trace:
ocfs2_local_read_info+0xb9/0x6f0 [ocfs2]
dquot_load_quota_sb+0x216/0x470
dquot_load_quota_inode+0x85/0x100
ocfs2_enable_quotas+0xa0/0x1c0 [ocfs2]
ocfs2_fill_super.cold+0xc8/0x1bf [ocfs2]
mount_bdev+0x185/0x1b0
legacy_get_tree+0x27/0x40
vfs_get_tree+0x25/0xb0
path_mount+0x465/0xac0
__x64_sys_mount+0x103/0x140
It is caused by when initializing dqi_gqlock, the corresponding dqi_type
and dqi_sb are not properly initialized.
This issue is introduced by commit 6c85c2c728, which wants to avoid
accessing uninitialized variables in error cases. So make global quota
info properly initialized.
Link: https://lkml.kernel.org/r/20220323023644.40084-1-joseph.qi@linux.alibaba.com
Link: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1007141
Fixes: 6c85c2c728 ("ocfs2: quota_local: fix possible uninitialized-variable access in ocfs2_local_read_info()")
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reported-by: Dayvison <sathlerds@gmail.com>
Tested-by: Valentin Vidic <vvidic@valentin-vidic.from.hr>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This reverts commit 08095d6310 ("mm: madvise: skip unmapped vma holes
passed to process_madvise") as process_madvise() fails to return the
exact processed bytes in other cases too.
As an example: if process_madvise() hits mlocked pages after processing
some initial bytes passed in [start, end), it just returns EINVAL
although some bytes are processed. Thus making an exception only for
ENOMEM is partially fixing the problem of returning the proper advised
bytes.
Thus revert this patch and return proper bytes advised.
Link: https://lkml.kernel.org/r/e73da1304a88b6a8a11907045117cccf4c2b8374.1648046642.git.quic_charante@quicinc.com
Fixes: 08095d6310 ("mm: madvise: skip unmapped vma holes passed to process_madvise")
Signed-off-by: Charan Teja Kalla <quic_charante@quicinc.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: David Rientjes <rientjes@google.com>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
While btrfs doesn't use large folios yet, this should have been changed
as part of the conversion from invalidatepage to invalidate_folio.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
We've already done the work of block_dirty_folio() here, leaving
only the work that needs to be done by filemap_dirty_folio().
This was a misconversion where I misread __set_page_dirty_nobuffers()
as __set_page_dirty_buffers().
Fixes: e621900ad2 ("fs: Convert __set_page_dirty_buffers to block_dirty_folio")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
It's slightly more efficient to go directly from the mapping to the
superblock than to go from the page. Now that these routines have
the mapping passed to them, there's no reason not to use it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
I got the return value wrong. Very little checks the return value
from set_page_dirty(), so nobody noticed during testing.
Fixes: 4f5e34f713 ("f2fs: Convert f2fs_set_data_page_dirty to f2fs_dirty_data_folio")
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
This should use the new folio_buffers() instead of page_has_buffers().
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
This flag is no longer used, so remove it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
We can extract both the file pointer and the pos from the iocb.
This simplifies each caller as well as allowing generic_perform_write()
to see more of the iocb contents in the future.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
fs.h has no more need for this typedef; networking is now the sole user
of the read_descriptor_t.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
This typedef is not used any more.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Remove the unnecessary variable 'len' and fix a comment to refer to
the folio instead of the page.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
- Refer to folios where appropriate, not pages (Matthew Wilcox)
- Eliminate references to the internal PG_readhead
- Use "readahead" consistently - not "read-ahead" or "read ahead"
(mostly Neil Brown)
- Clarify some sections that, on reflection, weren't very clear (Neil
Brown)
- Minor punctuation/spelling fixes (Neil Brown)
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
The skip_page argument to read_pages controls if rac->_index is
incremented before returning from the function. Just open code that in
the callers.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
This is always an empty list or NULL with the removal of the ->readahead
support, so remove it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
All filesystems have now been converted to use ->readahead, so
remove the ->readpages operation and fix all the comments that
used to refer to it.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
With no remaining users, remove this function and the related
infrastructure.
Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Just a few fixes that have been gathered since the previous PR.
- An additional fix for potential PCM deadlocks
- A series of HD-audio CS8409 codec patches for new models
- Other device specific fixes for HD-audio, ASoC mediatek, Intel,
fsl, rockchip
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Merge tag 'sound-fix-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"Just a few fixes that have been gathered since the previous pull:
- An additional fix for potential PCM deadlocks
- A series of HD-audio CS8409 codec patches for new models
- Other device specific fixes for HD-audio, ASoC mediatek, Intel,
fsl, rockchip"
* tag 'sound-fix-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: pcm: Fix potential AB/BA lock with buffer_mutex and mmap_lock
ALSA: hda: Avoid unsol event during RPM suspending
ALSA: hda/realtek: Fix audio regression on Mi Notebook Pro 2020
ALSA: hda/cs8409: Add new Dolphin HW variants
ALSA: hda/cs8409: Disable HSBIAS_SENSE_EN for Cyborg
ALSA: hda/cs8409: Support new Warlock MLK Variants
ALSA: hda/cs8409: Fix Full Scale Volume setting for all variants
ALSA: hda/cs8409: Re-order quirk table into ascending order
ALSA: hda/cs8409: Fix Warlock to use mono mic configuration
ALSA: cs4236: fix an incorrect NULL check on list iterator
ALSA: hda/realtek: Enable headset mic on Lenovo P360
ASoC: SOF: Intel: Fix build error without SND_SOC_SOF_PCI_DEV
ALSA: hda/realtek: Add mute and micmut LED support for Zbook Fury 17 G9
ASoC: rockchip: i2s_tdm: Fixup config for SND_SOC_DAIFMT_DSP_A/B
ASoC: fsl-asoc-card: Fix jack_event() always return 0
ASoC: mediatek: mt6358: add missing EXPORT_SYMBOLs
- grammar and formatting fixes in comments for gpio-ts4900
- correct links in gpio-ts5500
- fix a warning in doc generation for the core GPIO documentation
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Merge tag 'gpio-fixes-for-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
- grammar and formatting fixes in comments for gpio-ts4900
- correct links in gpio-ts5500
- fix a warning in doc generation for the core GPIO documentation
* tag 'gpio-fixes-for-v5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: ts5500: Fix Links to Technologic Systems web resources
gpio: Properly document parent data union
gpio: ts4900: Fix comment formatting and grammar
Pull input updates from Dmitry Torokhov:
- a revert of a patch resetting extra buttons on touchpads claiming to
be buttonpads as this caused regression on certain Dell devices
- a new driver for Mediatek MT6779 keypad
- a new driver for Imagis touchscreen
- rework of Google/Chrome OS "Vivaldi" keyboard handling
- assorted driver fixes.
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (31 commits)
Revert "Input: clear BTN_RIGHT/MIDDLE on buttonpads"
Input: adi - remove redundant variable z
Input: add Imagis touchscreen driver
dt-bindings: input/touchscreen: bindings for Imagis
Input: synaptics - enable InterTouch on ThinkPad T14/P14s Gen 1 AMD
Input: stmfts - fix reference leak in stmfts_input_open
Input: add bounds checking to input_set_capability()
Input: iqs5xx - use local input_dev pointer
HID: google: modify HID device groups of eel
HID: google: Add support for vivaldi to hid-hammer
HID: google: extract Vivaldi hid feature mapping for use in hid-hammer
Input: extract ChromeOS vivaldi physmap show function
HID: google: switch to devm when registering keyboard backlight LED
Input: mt6779-keypad - fix signedness bug
Input: mt6779-keypad - add MediaTek keypad driver
dt-bindings: input: Add bindings for Mediatek matrix keypad
Input: da9063 - use devm_delayed_work_autocancel()
Input: goodix - fix race on driver unbind
Input: goodix - use input_copy_abs() helper
Input: add input_copy_abs() function
...
Subsystem:
- remove uie_unsupported, all users have been converted to clear
RTC_FEATURE_UPDATE_INTERRUPT and provide a reason
- RTCs with an alarm with a resolution of a minute are now letting the core
handle rounding down the alarm time
- fix use-after-free on device removal
New driver:
- OP-TEE RTC PTA
Drivers:
- sun6i: Add H616 support
- cmos: Fix the AltCentury for AMD platforms
- spear: set range
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Merge tag 'rtc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux
Pull RTC updates from Alexandre Belloni:
"The bulk of the patches are about replacing the uie_unsupported struct
rtc_device member by a feature bit.
Subsystem:
- remove uie_unsupported, all users have been converted to clear
RTC_FEATURE_UPDATE_INTERRUPT and provide a reason
- RTCs with an alarm with a resolution of a minute are now letting
the core handle rounding down the alarm time
- fix use-after-free on device removal
New driver:
- OP-TEE RTC PTA
Drivers:
- sun6i: Add H616 support
- cmos: Fix the AltCentury for AMD platforms
- spear: set range"
* tag 'rtc-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (56 commits)
rtc: check if __rtc_read_time was successful
rtc: gamecube: Fix refcount leak in gamecube_rtc_read_offset_from_sram
rtc: mc146818-lib: Fix the AltCentury for AMD platforms
rtc: optee: add RTC driver for OP-TEE RTC PTA
rtc: pm8xxx: Return -ENODEV if set_time disallowed
rtc: pm8xxx: Attach wake irq to device
clk: sunxi-ng: sun6i-rtc: include clk/sunxi-ng.h
rtc: remove uie_unsupported
rtc: xgene: stop using uie_unsupported
rtc: hym8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
rtc: hym8563: let the core handle the alarm resolution
rtc: hym8563: switch to devm_rtc_allocate_device
rtc: efi: switch to RTC_FEATURE_UPDATE_INTERRUPT
rtc: efi: switch to devm_rtc_allocate_device
rtc: add new RTC_FEATURE_ALARM_WAKEUP_ONLY feature
rtc: spear: fix spear_rtc_read_time
rtc: spear: drop uie_unsupported
rtc: spear: set range
rtc: spear: switch to devm_rtc_allocate_device
rtc: pcf8563: switch to RTC_FEATURE_UPDATE_INTERRUPT
...
This reverts commit 37ef4c19b4.
The touchpad present in the Dell Precision 7550 and 7750 laptops
reports a HID_DG_BUTTONTYPE of type MT_BUTTONTYPE_CLICKPAD. However,
the device is not a clickpad, it is a touchpad with physical buttons.
In order to fix this issue, a quirk for the device was introduced in
libinput [1] [2] to disable the INPUT_PROP_BUTTONPAD property:
[Precision 7x50 Touchpad]
MatchBus=i2c
MatchUdevType=touchpad
MatchDMIModalias=dmi:*svnDellInc.:pnPrecision7?50*
AttrInputPropDisable=INPUT_PROP_BUTTONPAD
However, because of the change introduced in 37ef4c19b4 ("Input: clear
BTN_RIGHT/MIDDLE on buttonpads") the BTN_RIGHT key bit is not mapped
anymore breaking the device right click button and making impossible to
workaround it in user space.
In order to avoid breakage on other present or future devices, revert
the patch causing the issue.
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Peter Hutterer <peter.hutterer@who-t.net>
Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20220321184404.20025-1-jose.exposito89@gmail.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Before this commit, VolumeDirty will be cleared first in
writeback if 'dirsync' or 'sync' is not enabled. If the power
is suddenly cut off after cleaning VolumeDirty but other
updates are not written, the exFAT filesystem will not be able
to detect the power failure in the next mount.
And VolumeDirty will be set again but not cleared when updating
the parent directory. It means that BootSector will be written at
least once in each write-back, which will shorten the life of the
device.
Reviewed-by: Andy Wu <Andy.Wu@sony.com>
Reviewed-by: Aoyama Wataru <wataru.aoyama@sony.com>
Signed-off-by: Yuezhang Mo <Yuezhang.Mo@sony.com>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
The Linux kernel exfat driver currently unconditionally strips
trailing periods '.' from path components. This isdone intentionally,
loosely following Windows behaviour and specifications
which state:
#exFAT
The concatenated file name has the same set of illegal characters as
other FAT-based file systems (see Table 31).
#FAT
...
Leading and trailing spaces in a long name are ignored.
Leading and embedded periods are allowed in a name and are stored in
the long name. Trailing periods are ignored.
Note: Leading and trailing space ' ' characters are currently retained
by Linux kernel exfat, in conflict with the above specification.
On Windows 10, trailing and leading space ' ' characters are stripped
from the filenames.
Some implementations, such as fuse-exfat, don't perform path trailer
removal. When mounting images which contain trailing-dot paths, these
paths are unreachable, e.g.:
+ mount.exfat-fuse /dev/zram0 /mnt/test/
FUSE exfat 1.3.0
+ cd /mnt/test/
+ touch fuse_created_dots... ' fuse_created_spaces '
+ ls -l
total 0
-rwxrwxrwx 1 root 0 0 Aug 18 09:45 ' fuse_created_spaces '
-rwxrwxrwx 1 root 0 0 Aug 18 09:45 fuse_created_dots...
+ cd /
+ umount /mnt/test/
+ mount -t exfat /dev/zram0 /mnt/test
+ cd /mnt/test
+ ls -l
ls: cannot access 'fuse_created_dots...': No such file or directory
total 0
-rwxr-xr-x 1 root 0 0 Aug 18 09:45 ' fuse_created_spaces '
-????????? ? ? ? ? ? fuse_created_dots...
+ touch kexfat_created_dots... ' kexfat_created_spaces '
+ ls -l
ls: cannot access 'fuse_created_dots...': No such file or directory
total 0
-rwxr-xr-x 1 root 0 0 Aug 18 09:45 ' fuse_created_spaces '
-rwxr-xr-x 1 root 0 0 Aug 18 09:45 ' kexfat_created_spaces '
-????????? ? ? ? ? ? fuse_created_dots...
-rwxr-xr-x 1 root 0 0 Aug 18 09:45 kexfat_created_dots
+ cd /
+ umount /mnt/test/
This commit adds "keep_last_dots" mount option that controls whether or
not trailing periods '.' are stripped
from path components during file lookup or file creation.
This mount option can be used to access
paths with trailing periods and disallow creating files with names with
trailing periods. E.g. continuing from the previous example:
+ mount -t exfat -o keep_last_dots /dev/zram0 /mnt/test
+ cd /mnt/test
+ ls -l
total 0
-rwxr-xr-x 1 root 0 0 Aug 18 10:32 ' fuse_created_spaces '
-rwxr-xr-x 1 root 0 0 Aug 18 10:32 ' kexfat_created_spaces '
-rwxr-xr-x 1 root 0 0 Aug 18 10:32 fuse_created_dots...
-rwxr-xr-x 1 root 0 0 Aug 18 10:32 kexfat_created_dots
+ echo > kexfat_created_dots_again...
sh: kexfat_created_dots_again...: Invalid argument
Link: https://bugzilla.suse.com/show_bug.cgi?id=1188964
Link: https://lore.kernel.org/linux-fsdevel/003b01d755e4$31fb0d80$95f12880$
@samsung.com/
Link: https://docs.microsoft.com/en-us/windows/win32/fileio/exfat-specification
Suggested-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Vasant Karasulli <vkarasulli@suse.de>
Co-developed-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: David Disseldorp <ddiss@suse.de>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
As of 93917ad509 ("RISC-V: Add support for restartable sequence") we
have support for restartable sequences, which default to enabled. These
select MEMBARRIER, so disabling it is now redundant.
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
As of 3938d5a2f9 ("riscv: default to CONFIG_RISCV_SBI_V01=n") we no
longer default to enabling SBI-0.1 support, so these dependent configs
no longer have any effect. Remove them to avoid clutter.
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This subdir no longer exists: it was there to document some of the
quirks and paths forward for handling them, but those have been dealt
with as of Atish's recent patch set.
Fixes: 23b1f18326 ("Documentation: riscv: Remove the old documentation")
Link: https://lore.kernel.org/linux-next/20220329133412.591d6882@canb.auug.org.au/
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bagas Sanjaya <bagasdotme@gmail.com>
[Palmer: commit text]
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
- Devicetree support (for testing)
- Various cleanups and fixes: UBD, port_user, uml_mconsole
- Maintainer update
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Merge tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml
Pull UML updates from Richard Weinberger:
- Devicetree support (for testing)
- Various cleanups and fixes: UBD, port_user, uml_mconsole
- Maintainer update
* tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml:
um: run_helper: Write error message to kernel log on exec failure on host
um: port_user: Improve error handling when port-helper is not found
um: port_user: Allow setting path to port-helper using UML_PORT_HELPER envvar
um: port_user: Search for in.telnetd in PATH
um: clang: Strip out -mno-global-merge from USER_CFLAGS
docs: UML: Mention telnetd for port channel
um: Remove unused timeval_to_ns() function
um: Fix uml_mconsole stop/go
um: Cleanup syscall_handler_t definition/cast, fix warning
uml: net: vector: fix const issue
um: Fix WRITE_ZEROES in the UBD Driver
um: Migrate vector drivers to NAPI
um: Fix order of dtb unflatten/early init
um: fix and optimize xor select template for CONFIG64 and timetravel mode
um: Document dtb command line option
lib/logic_iomem: correct fallback config references
um: Remove duplicated include in syscalls_64.c
MAINTAINERS: Update UserModeLinux entry
JFFS2:
- Fixes for various memory issues
UBI:
- Fix for a race condition in cdev ioctl handler
UBIFS:
- Fixes for O_TMPFILE and whiteout handling
- Fixes for various memory issues
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Merge tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull JFFS2, UBI and UBIFS updates from Richard Weinberger:
"JFFS2:
- Fixes for various memory issues
UBI:
- Fix for a race condition in cdev ioctl handler
UBIFS:
- Fixes for O_TMPFILE and whiteout handling
- Fixes for various memory issues"
* tag 'for-linus-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
ubifs: rename_whiteout: correct old_dir size computing
jffs2: fix memory leak in jffs2_scan_medium
jffs2: fix memory leak in jffs2_do_mount_fs
jffs2: fix use-after-free in jffs2_clear_xattr_subsystem
fs/jffs2: fix comments mentioning i_mutex
ubi: fastmap: Return error code if memory allocation fails in add_aeb()
ubifs: Fix to add refcount once page is set private
ubifs: Fix read out-of-bounds in ubifs_wbuf_write_nolock()
ubifs: setflags: Make dirtied_ino_d 8 bytes aligned
ubifs: Rectify space amount budget for mkdir/tmpfile operations
ubifs: Fix 'ui->dirty' race between do_tmpfile() and writeback work
ubifs: Rename whiteout atomically
ubifs: Add missing iput if do_tmpfile() failed in rename whiteout
ubifs: Fix wrong number of inodes locked by ui_mutex in ubifs_inode comment
ubifs: Fix deadlock in concurrent rename whiteout and inode writeback
ubifs: rename_whiteout: Fix double free for whiteout_ui->data
ubi: Fix race condition between ctrl_cdev_ioctl and ubi_cdev_ioctl
