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Author SHA1 Message Date
Bernie Thompson
1df0a4711f rtc: add ability to push out an existing wakealarm using sysfs 
This adds the ability for the rtc sysfs code to handle += characters at
the beginning of a wakealarm setting string.  This will allow the user
to attempt to push out an existing wakealarm by a provided amount.

In the case that the += characters are provided but the alarm is not
active -EINVAL is returned.

his is useful, at least for my purposes in suspend/resume testing.  The
basic test goes something like:

1. Set a wake alarm from userspace 5 seconds in the future

2. Start the suspend process (echo mem > /sys/power/state)

3. After ~2.5 seconds if userspace is still running (using another
   thread to check this), move the wake alarm 5 more seconds

If the "move" involves an unset of the wakealarm then there's a period
   of time where the system is midway through suspending but has no wake
   alarm.  It will get stuck.

We'd rather not remove the "move" since the idea is to avoid a cancelled
suspend when the alarm fires _during_ suspend.  It is difficult for the
test to tell the difference between a suspend that was cancelled because
the alarm fired too early and a suspend that was

Signed-off-by: Bernie Thompson <bhthompson@chromium.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Doug Anderson <dianders@chromium.org>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2013-07-03 16:07:54 -07:00
Bartlomiej Zolnierkiewicz
48a9db462d drivers/dma: remove unused support for MEMSET operations 
There have never been any real users of MEMSET operations since they
have been introduced in January 2007 by commit 7405f74bad ("dmaengine:
refactor dmaengine around dma_async_tx_descriptor").  Therefore remove
support for them for now, it can be always brought back when needed.

[sebastian.hesselbarth@gmail.com: fix drivers/dma/mv_xor]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Acked-by: Dan Williams <djbw@fb.com>
Cc: Tomasz Figa <t.figa@samsung.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: Olof Johansson <olof@lixom.net>
Cc: Kevin Hilman <khilman@linaro.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2013-07-03 16:07:42 -07:00
Mel Gorman
543cc11533 documentation: document the is_dirty_writeback aops callback 
Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2013-07-03 16:07:40 -07:00
Mel Gorman
26c0c5bf38 documentation: update address_space_operations 
The documentation for address_space_operations is partially out of date.

Signed-off-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2013-07-03 16:07:40 -07:00
Li Zefan
f968ef1c55 memcg: update TODO list in Documentation 
hugetlb cgroup has already been implemented.

Signed-off-by: Li Zefan <lizefan@huawei.com>
Acked-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Rob Landley <rob@landley.net>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2013-07-03 16:07:31 -07:00
Pavel Emelyanov
541c237c09 pagemap: prepare to reuse constant bits with page-shift 
In order to reuse bits from pagemap entries gracefully, we leave the
entries as is but on pagemap open emit a warning in dmesg, that bits
55-60 are about to change in a couple of releases.  Next, if a user
issues soft-dirty clear command via the clear_refs file (it was disabled
before v3.9) we assume that he's aware of the new pagemap format, note
that fact and report the bits in pagemap in the new manner.

The "migration strategy" looks like this then:

1. existing users are not affected -- they don't touch soft-dirty feature, thus
   see old bits in pagemap, but are warned and have time to fix themselves
2. those who use soft-dirty know about new pagemap format
3. some time soon we get rid of any signs of page-shift in pagemap as well as
   this trick with clear-soft-dirty affecting pagemap format.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2013-07-03 16:07:26 -07:00
Pavel Emelyanov
0f8975ec4d mm: soft-dirty bits for user memory changes tracking 
The soft-dirty is a bit on a PTE which helps to track which pages a task
writes to.  In order to do this tracking one should

  1. Clear soft-dirty bits from PTEs ("echo 4 > /proc/PID/clear_refs)
  2. Wait some time.
  3. Read soft-dirty bits (55'th in /proc/PID/pagemap2 entries)

To do this tracking, the writable bit is cleared from PTEs when the
soft-dirty bit is.  Thus, after this, when the task tries to modify a
page at some virtual address the #PF occurs and the kernel sets the
soft-dirty bit on the respective PTE.

Note, that although all the task's address space is marked as r/o after
the soft-dirty bits clear, the #PF-s that occur after that are processed
fast.  This is so, since the pages are still mapped to physical memory,
and thus all the kernel does is finds this fact out and puts back
writable, dirty and soft-dirty bits on the PTE.

Another thing to note, is that when mremap moves PTEs they are marked
with soft-dirty as well, since from the user perspective mremap modifies
the virtual memory at mremap's new address.

Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Xiao Guangrong <xiaoguangrong@linux.vnet.ibm.com>
Cc: Glauber Costa <glommer@parallels.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2013-07-03 16:07:26 -07:00
Linus Torvalds
1873e50028 Main features: 
- KVM and Xen ports to AArch64
 - Hugetlbfs and transparent huge pages support for arm64
 - Applied Micro X-Gene Kconfig entry and dts file
 - Cache flushing improvements
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64

Pull ARM64 updates from Catalin Marinas:
 "Main features:
   - KVM and Xen ports to AArch64
   - Hugetlbfs and transparent huge pages support for arm64
   - Applied Micro X-Gene Kconfig entry and dts file
   - Cache flushing improvements

  For arm64 huge pages support, there are x86 changes moving part of
  arch/x86/mm/hugetlbpage.c into mm/hugetlb.c to be re-used by arm64"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/linux-aarch64: (66 commits)
  arm64: Add initial DTS for APM X-Gene Storm SOC and APM Mustang board
  arm64: Add defines for APM ARMv8 implementation
  arm64: Enable APM X-Gene SOC family in the defconfig
  arm64: Add Kconfig option for APM X-Gene SOC family
  arm64/Makefile: provide vdso_install target
  ARM64: mm: THP support.
  ARM64: mm: Raise MAX_ORDER for 64KB pages and THP.
  ARM64: mm: HugeTLB support.
  ARM64: mm: Move PTE_PROT_NONE bit.
  ARM64: mm: Make PAGE_NONE pages read only and no-execute.
  ARM64: mm: Restore memblock limit when map_mem finished.
  mm: thp: Correct the HPAGE_PMD_ORDER check.
  x86: mm: Remove general hugetlb code from x86.
  mm: hugetlb: Copy general hugetlb code from x86 to mm.
  x86: mm: Remove x86 version of huge_pmd_share.
  mm: hugetlb: Copy huge_pmd_share from x86 to mm.
  arm64: KVM: document kernel object mappings in HYP
  arm64: KVM: MAINTAINERS update
  arm64: KVM: userspace API documentation
  arm64: KVM: enable initialization of a 32bit vcpu
  ...
 2013-07-03 10:31:38 -07:00
Linus Torvalds
fb2af0020a Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm 
Pull ARM updates from Russell King:
 "This contains the usual updates from other people (listed below) and
  the usual random muddle of miscellaneous ARM updates which cover some
  low priority bug fixes and performance improvements.

  I've started to put the pull request wording into the merge commits,
  which are:

   - NoMMU stuff:

     This includes the following series sent earlier to the list:
      - nommu-fixes
      - R7 Support
      - MPU support

     I've left out the ARCH_MULTIPLATFORM/!MMU stuff that Arnd and I
     were discussing today until we've reached a conclusion/that's had
     some more review.

     This is rebased (and re-tested) on your devel-stable branch because
     otherwise there were going to be conflicts with Uwe's V7M work now
     that you've merged that.  I've included the fix for limiting MPU to
     CPU_V7.

   - Huge page support

     These changes bring both HugeTLB support and Transparent HugePage
     (THP) support to ARM.  Only long descriptors (LPAE) are supported
     in this series.

     The code has been tested on an Arndale board (Exynos 5250).

   - LPAE updates

     Please pull these miscellaneous LPAE fixes I've been collecting for
     a while now for 3.11.  They've been tested and reviewed by quite a
     few people, and most of the patches are pretty trivial.  -- Will Deacon.

   - arch_timer cleanups

     Please pull these arch_timer cleanups I've been holding onto for a
     while.  They're the same as my last posting, but have been rebased
     to v3.10-rc3.

   - mpidr linearisation (multiprocessor id register - identifies which
     CPU number we are in the system)

     This patch series that implements MPIDR linearization through a
     simple hashing algorithm and updates current cpu_{suspend}/{resume}
     code to use the newly created hash structures to retrieve context
     pointers.  It represents a stepping stone for the implementation of
     power management code on forthcoming multi-cluster ARM systems.

     It has been tested on TC2 (dual cluster A15xA7 system), iMX6q,
     OMAP4 and Tegra, with processors hitting low-power states requiring
     warm-boot resume through the cpu_resume code path"

* 'for-linus' of git://git.linaro.org/people/rmk/linux-arm: (77 commits)
  ARM: 7775/1: mm: Remove do_sect_fault from LPAE code
  ARM: 7777/1: Avoid extra calls to the C compiler
  ARM: 7774/1: Fix dtb dependency to use order-only prerequisites
  ARM: 7770/1: remove residual ARMv2 support from decompressor
  ARM: 7769/1: Cortex-A15: fix erratum 798181 implementation
  ARM: 7768/1: prevent risks of out-of-bound access in ASID allocator
  ARM: 7767/1: let the ASID allocator handle suspended animation
  ARM: 7766/1: versatile: don't mark pen as __INIT
  ARM: 7765/1: perf: Record the user-mode PC in the call chain.
  ARM: 7735/2: Preserve the user r/w register TPIDRURW on context switch and fork
  ARM: kernel: implement stack pointer save array through MPIDR hashing
  ARM: kernel: build MPIDR hash function data structure
  ARM: mpu: Ensure that MPU depends on CPU_V7
  ARM: mpu: protect the vectors page with an MPU region
  ARM: mpu: Allow enabling of the MPU via kconfig
  ARM: 7758/1: introduce config HAS_BANDGAP
  ARM: 7757/1: mm: don't flush icache in switch_mm with hardware broadcasting
  ARM: 7751/1: zImage: don't overwrite ourself with a page table
  ARM: 7749/1: spinlock: retry trylock operation if strex fails on free lock
  ARM: 7748/1: oabi: handle faults when loading swi instruction from userspace
  ...
 2013-07-03 09:46:29 -07:00
Linus Torvalds
790eac5640 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull second set of VFS changes from Al Viro:
 "Assorted f_pos race fixes, making do_splice_direct() safe to call with
  i_mutex on parent, O_TMPFILE support, Jeff's locks.c series,
  ->d_hash/->d_compare calling conventions changes from Linus, misc
  stuff all over the place."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits)
  Document ->tmpfile()
  ext4: ->tmpfile() support
  vfs: export lseek_execute() to modules
  lseek_execute() doesn't need an inode passed to it
  block_dev: switch to fixed_size_llseek()
  cpqphp_sysfs: switch to fixed_size_llseek()
  tile-srom: switch to fixed_size_llseek()
  proc_powerpc: switch to fixed_size_llseek()
  ubi/cdev: switch to fixed_size_llseek()
  pci/proc: switch to fixed_size_llseek()
  isapnp: switch to fixed_size_llseek()
  lpfc: switch to fixed_size_llseek()
  locks: give the blocked_hash its own spinlock
  locks: add a new "lm_owner_key" lock operation
  locks: turn the blocked_list into a hashtable
  locks: convert fl_link to a hlist_node
  locks: avoid taking global lock if possible when waking up blocked waiters
  locks: protect most of the file_lock handling with i_lock
  locks: encapsulate the fl_link list handling
  locks: make "added" in __posix_lock_file a bool
  ...
 2013-07-03 09:10:19 -07:00
Al Viro
48bde8d362 Document ->tmpfile() 
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-07-03 16:23:29 +04:00
Linus Torvalds
f317ff9eed Merge branch 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq 
Pull workqueue changes from Tejun Heo:
 "Surprisingly, Lai and I didn't break too many things implementing
  custom pools and stuff last time around and there aren't any follow-up
  changes necessary at this point.

  The only change in this pull request is Viresh's patches to make some
  per-cpu workqueues to behave as unbound workqueues dependent on a boot
  param whose default can be configured via a config option.  This leads
  to higher processing overhead / lower bandwidth as more work items are
  bounced across CPUs; however, it can lead to noticeable powersave in
  certain configurations - ~10% w/ idlish constant workload on a
  big.LITTLE configuration according to Viresh.

  This is because per-cpu workqueues interfere with how the scheduler
  perceives whether or not each CPU is idle by forcing pinned tasks on
  them, which makes the scheduler's power-aware scheduling decisions
  less effective.

  Its effectiveness is likely less pronounced on homogenous
  configurations and this type of optimization can probably be made
  automatic; however, the changes are pretty minimal and the affected
  workqueues are clearly marked, so it's an easy gain for some
  configurations for the time being with pretty unintrusive changes."

* 'for-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq:
  fbcon: queue work on power efficient wq
  block: queue work on power efficient wq
  PHYLIB: queue work on system_power_efficient_wq
  workqueue: Add system wide power_efficient workqueues
  workqueues: Introduce new flag WQ_POWER_EFFICIENT for power oriented workqueues
 2013-07-02 19:53:30 -07:00
Linus Torvalds
3045f94a20 Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 RAS update from Ingo Molnar:
 "The changes in this tree are:

   - ACPI APEI (ACPI Platform Error Interface) improvements, by Chen
     Gong
   - misc MCE fixes/cleanups"

* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Update MCE severity condition check
  mce: acpi/apei: Add comments to clarify usage of the various bitfields in the MCA subsystem
  ACPI/APEI: Update einj documentation for param1/param2
  ACPI/APEI: Add parameter check before error injection
  ACPI, APEI, EINJ: Fix error return code in einj_init()
  x86, mce: Fix "braodcast" typo
 2013-07-02 16:30:46 -07:00
Linus Torvalds
fdd78889aa Merge branch 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull x86 microcode loading update from Ingo Molnar:
 "Two main changes that improve microcode loading on AMD CPUs:

   - Add support for all-in-one binary microcode files that concatenate
     the microcode images of multiple processor families, by Jacob Shin

   - Add early microcode loading (embedded in the initrd) support, also
     by Jacob Shin"

* 'x86-microcode-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86, microcode, amd: Another early loading fixup
  x86, microcode, amd: Allow multiple families' bin files appended together
  x86, microcode, amd: Make find_ucode_in_initrd() __init
  x86, microcode, amd: Fix warnings and errors on with CONFIG_MICROCODE=m
  x86, microcode, amd: Early microcode patch loading support for AMD
  x86, microcode, amd: Refactor functions to prepare for early loading
  x86, microcode: Vendor abstract out save_microcode_in_initrd()
  x86, microcode, intel: Correct typo in printk
 2013-07-02 16:28:10 -07:00
Linus Torvalds
2d722f6d56 Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull scheduler updates from Ingo Molnar:
 "The main changes:

   - load-calculation cleanups and improvements, by Alex Shi
   - various nohz related tidying up of statisics, by Frederic
     Weisbecker
   - factor out /proc functions to kernel/sched/proc.c, by Paul
     Gortmaker
   - simplify the RT policy scheduler, by Kirill Tkhai
   - various fixes and cleanups"

* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
  sched/debug: Remove CONFIG_FAIR_GROUP_SCHED mask
  sched/debug: Fix formatting of /proc/<PID>/sched
  sched: Fix typo in struct sched_avg member description
  sched/fair: Fix typo describing flags in enqueue_entity
  sched/debug: Add load-tracking statistics to task
  sched: Change get_rq_runnable_load() to static and inline
  sched/tg: Remove tg.load_weight
  sched/cfs_rq: Change atomic64_t removed_load to atomic_long_t
  sched/tg: Use 'unsigned long' for load variable in task group
  sched: Change cfs_rq load avg to unsigned long
  sched: Consider runnable load average in move_tasks()
  sched: Compute runnable load avg in cpu_load and cpu_avg_load_per_task
  sched: Update cpu load after task_tick
  sched: Fix sleep time double accounting in enqueue entity
  sched: Set an initial value of runnable avg for new forked task
  sched: Move a few runnable tg variables into CONFIG_SMP
  Revert "sched: Introduce temporary FAIR_GROUP_SCHED dependency for load-tracking"
  sched: Don't mix use of typedef ctl_table and struct ctl_table
  sched: Remove WARN_ON(!sd) from init_sched_groups_power()
  sched: Fix memory leakage in build_sched_groups()
  ...
 2013-07-02 16:17:25 -07:00
Linus Torvalds
f0bb4c0ab0 Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull perf updates from Ingo Molnar:
 "Kernel improvements:

   - watchdog driver improvements by Li Zefan
   - Power7 CPI stack events related improvements by Sukadev Bhattiprolu
   - event multiplexing via hrtimers and other improvements by Stephane
     Eranian
   - kernel stack use optimization by Andrew Hunter
   - AMD IOMMU uncore PMU support by Suravee Suthikulpanit
   - NMI handling rate-limits by Dave Hansen
   - various hw_breakpoint fixes by Oleg Nesterov
   - hw_breakpoint overflow period sampling and related signal handling
     fixes by Jiri Olsa
   - Intel Haswell PMU support by Andi Kleen

  Tooling improvements:

   - Reset SIGTERM handler in workload child process, fix from David
     Ahern.
   - Makefile reorganization, prep work for Kconfig patches, from Jiri
     Olsa.
   - Add automated make test suite, from Jiri Olsa.
   - Add --percent-limit option to 'top' and 'report', from Namhyung
     Kim.
   - Sorting improvements, from Namhyung Kim.
   - Expand definition of sysfs format attribute, from Michael Ellerman.

  Tooling fixes:

   - 'perf tests' fixes from Jiri Olsa.
   - Make Power7 CPI stack events available in sysfs, from Sukadev
     Bhattiprolu.
   - Handle death by SIGTERM in 'perf record', fix from David Ahern.
   - Fix printing of perf_event_paranoid message, from David Ahern.
   - Handle realloc failures in 'perf kvm', from David Ahern.
   - Fix divide by 0 in variance, from David Ahern.
   - Save parent pid in thread struct, from David Ahern.
   - Handle JITed code in shared memory, from Andi Kleen.
   - Fixes for 'perf diff', from Jiri Olsa.
   - Remove some unused struct members, from Jiri Olsa.
   - Add missing liblk.a dependency for python/perf.so, fix from Jiri
     Olsa.
   - Respect CROSS_COMPILE in liblk.a, from Rabin Vincent.
   - No need to do locking when adding hists in perf report, only 'top'
     needs that, from Namhyung Kim.
   - Fix alignment of symbol column in in the hists browser (top,
     report) when -v is given, from NAmhyung Kim.
   - Fix 'perf top' -E option behavior, from Namhyung Kim.
   - Fix bug in isupper() and islower(), from Sukadev Bhattiprolu.
   - Fix compile errors in bp_signal 'perf test', from Sukadev
     Bhattiprolu.

  ... and more things"

* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (102 commits)
  perf/x86: Disable PEBS-LL in intel_pmu_pebs_disable()
  perf/x86: Fix shared register mutual exclusion enforcement
  perf/x86/intel: Support full width counting
  x86: Add NMI duration tracepoints
  perf: Drop sample rate when sampling is too slow
  x86: Warn when NMI handlers take large amounts of time
  hw_breakpoint: Introduce "struct bp_cpuinfo"
  hw_breakpoint: Simplify *register_wide_hw_breakpoint()
  hw_breakpoint: Introduce cpumask_of_bp()
  hw_breakpoint: Simplify the "weight" usage in toggle_bp_slot() paths
  hw_breakpoint: Simplify list/idx mess in toggle_bp_slot() paths
  perf/x86/intel: Add mem-loads/stores support for Haswell
  perf/x86/intel: Support Haswell/v4 LBR format
  perf/x86/intel: Move NMI clearing to end of PMI handler
  perf/x86/intel: Add Haswell PEBS support
  perf/x86/intel: Add simple Haswell PMU support
  perf/x86/intel: Add Haswell PEBS record support
  perf/x86/intel: Fix sparse warning
  perf/x86/amd: AMD IOMMU Performance Counter PERF uncore PMU implementation
  perf/x86/amd: Add IOMMU Performance Counter resource management
  ...
 2013-07-02 16:15:23 -07:00
Linus Torvalds
a4883ef6af Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull core irq changes from Ingo Molnar:
 "The main changes:

  - generic-irqchip driver additions, cleanups and fixes

  - 3 new irqchip drivers: ARMv7-M NVIC, TB10x and Marvell Orion SoCs

  - irq_get_trigger_type() simplification and cross-arch cleanup

  - various cleanups, simplifications

  - documentation updates"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (26 commits)
  softirq: Use _RET_IP_
  genirq: Add the generic chip to the genirq docbook
  genirq: generic-chip: Export some irq_gc_ functions
  genirq: Fix can_request_irq() for IRQs without an action
  irqchip: exynos-combiner: Staticize combiner_init
  irqchip: Add support for ARMv7-M NVIC
  irqchip: Add TB10x interrupt controller driver
  irqdomain: Use irq_get_trigger_type() to get IRQ flags
  MIPS: octeon: Use irq_get_trigger_type() to get IRQ flags
  arm: orion: Use irq_get_trigger_type() to get IRQ flags
  mfd: stmpe: use irq_get_trigger_type() to get IRQ flags
  mfd: twl4030-irq: Use irq_get_trigger_type() to get IRQ flags
  gpio: mvebu: Use irq_get_trigger_type() to get IRQ flags
  genirq: Add irq_get_trigger_type() to get IRQ flags
  genirq: Irqchip: document gcflags arg of irq_alloc_domain_generic_chips
  genirq: Set irq thread to RT priority on creation
  irqchip: Add support for Marvell Orion SoCs
  genirq: Add kerneldoc for irq_disable.
  genirq: irqchip: Add mask to block out invalid irqs
  genirq: Generic chip: Add linear irq domain support
  ...
 2013-07-02 16:14:35 -07:00
Linus Torvalds
ab3d681e9d Merge branch 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull RCU updates from Ingo Molnar:
 "The major changes:

  - Simplify RCU's grace-period and callback processing based on the new
    numbering for callbacks.

  - Removal of TINY_PREEMPT_RCU in favor of TREE_PREEMPT_RCU for
    single-CPU low-latency systems.

  - SRCU-related changes and fixes.

  - Miscellaneous fixes, including converting a few remaining printk()
    calls to pr_*().

  - Documentation updates"

* 'core-rcu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (32 commits)
  rcu: Shrink TINY_RCU by reworking CPU-stall ifdefs
  rcu: Shrink TINY_RCU by moving exit_rcu()
  rcu: Remove TINY_PREEMPT_RCU tracing documentation
  rcu: Consolidate rcutiny_plugin.h ifdefs
  rcu: Remove rcu_preempt_note_context_switch()
  rcu: Remove the CONFIG_TINY_RCU ifdefs in rcutiny.h
  rcu: Remove check_cpu_stall_preempt()
  rcu: Simplify RCU_TINY RCU callback invocation
  rcu: Remove rcu_preempt_process_callbacks()
  rcu: Remove rcu_preempt_remove_callbacks()
  rcu: Remove rcu_preempt_check_callbacks()
  rcu: Remove show_tiny_preempt_stats()
  rcu: Remove TINY_PREEMPT_RCU
  powerpc,kvm: fix imbalance srcu_read_[un]lock()
  rcu: Remove srcu_read_lock_raw() and srcu_read_unlock_raw().
  rcu: Apply Dave Jones's NOCB Kconfig help feedback
  rcu: Merge adjacent identical ifdefs
  rcu: Drive quiescent-state-forcing delay from HZ
  rcu: Remove "Experimental" flags
  kthread: Add kworker kthreads to OS-jitter documentation
  ...
 2013-07-02 16:13:29 -07:00
Linus Torvalds
0c46d68d19 Merge branch 'core-mutexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 
Pull WW mutex support from Ingo Molnar:
 "This tree adds support for wound/wait style locks, which the graphics
  guys would like to make use of in the TTM graphics subsystem.

  Wound/wait mutexes are used when other multiple lock acquisitions of a
  similar type can be done in an arbitrary order.  The deadlock handling
  used here is called wait/wound in the RDBMS literature: The older
  tasks waits until it can acquire the contended lock.  The younger
  tasks needs to back off and drop all the locks it is currently
  holding, ie the younger task is wounded.

  See this LWN.net description of W/W mutexes:

     https://lwn.net/Articles/548909/

  The comments there outline specific usecases for this facility (which
  have already been implemented for the DRM tree).

  Also see Documentation/ww-mutex-design.txt for more details"

* 'core-mutexes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  locking-selftests: Handle unexpected failures more strictly
  mutex: Add more w/w tests to test EDEADLK path handling
  mutex: Add more tests to lib/locking-selftest.c
  mutex: Add w/w tests to lib/locking-selftest.c
  mutex: Add w/w mutex slowpath debugging
  mutex: Add support for wound/wait style locks
  arch: Make __mutex_fastpath_lock_retval return whether fastpath succeeded or not
 2013-07-02 16:09:13 -07:00
Linus Torvalds
42daabf62b ARM SoC late changes 
These are changes that arrived a little late before the merge
 window or that have multiple dependencies on previous branches
 so they did not fit into one of the earlier ones. There
 are 10 branches merged here, a total of 39 non-merge commits.
 Contents are a mixed bag for the above reasons:
 
 * Two new SoC platforms: ST microelectronics stixxxx and
   the TI 'Nspire' graphing calculator. These should have
   been in the 'soc' branch but were a little late
 * Support for the Exynos 5420 variant in mach-exynos,
   which is based on the other exynos branches to avoid
   conflicts.
 * Various small changes for sh-mobile, ux500 and davinci
 * Common clk support for MSM
 
 Conflicts:
 * In Kconfig.debug, various additions trivially conflict,
   the list should be kept in alphabetical order when
   resolving.
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Merge tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC late changes from Arnd Bergmann:
 "These are changes that arrived a little late before the merge window
  or that have multiple dependencies on previous branches so they did
  not fit into one of the earlier ones.  There are 10 branches merged
  here, a total of 39 non-merge commits.  Contents are a mixed bag for
  the above reasons:

   * Two new SoC platforms: ST microelectronics stixxxx and the TI
     'Nspire' graphing calculator.  These should have been in the 'soc'
     branch but were a little late
   * Support for the Exynos 5420 variant in mach-exynos, which is based
     on the other exynos branches to avoid conflicts.
   * Various small changes for sh-mobile, ux500 and davinci
   * Common clk support for MSM"

* tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
  ARM: ux500: bail out on alien cpus
  ARM: davinci: da850: adopt to pinctrl-single change for configuring multiple pins
  serial: sh-sci: Initialise variables before access in sci_set_termios()
  ARM: stih41x: Add B2020 board support
  ARM: stih41x: Add B2000 board support
  ARM: sti: Add DEBUG_LL console support
  ARM: sti: Add STiH416 SOC support
  ARM: sti: Add STiH415 SOC support
  ARM: msm: Migrate to common clock framework
  ARM: msm: Make proc_comm clock control into a platform driver
  ARM: msm: Prepare clk_get() users in mach-msm for clock-pcom driver
  ARM: msm: Remove clock-7x30.h include file
  ARM: msm: Remove custom clk_set_{max,min}_rate() API
  ARM: msm: Remove custom clk_set_flags() API
  msm: iommu: Use clk_set_rate() instead of clk_set_min_rate()
  msm: iommu: Convert to clk_prepare/unprepare
  msm_sdcc: Convert to clk_prepare/unprepare
  usb: otg: msm: Convert to clk_prepare/unprepare
  msm_serial: Use devm_clk_get() and properly return errors
  msm_serial: Convert to clk_prepare/unprepare
  ...
 2013-07-02 14:42:51 -07:00
Linus Torvalds
0bf6a210a4 ARM SoC driver specific changes 
These changes are all driver specific and cross over between arm-soc
 contents and some other subsystem, in these cases cpufreq, crypto,
 dma, pinctrl, mailbox and usb, and the subsystem owners agreed to
 have these changes merged through arm-soc. As we proceed to untangle
 the dependencies between platform code and driver code, the amount of
 changes in this category is fortunately shrinking, for 3.11 we have
 16 branches here and 101 non-merge changesets, the majority of which
 are for the stedma40 dma engine driver used in the ux500 platform.
 Cleaning up that code touches multiple subsystems, but gets rid
 of the dependency in the end.
 
 The mailbox code moved out from mach-omap2 to drivers/mailbox
 is an intermediate step and is still omap specific at the moment.
 Patches exist to generalize the subsystem and add other drivers
 with the same API, but those did not make it for 3.11.
 
 Conflicts:
 * In cpu-db8500.c results from the removal of the u8500_of_init_devices
   function in combination with the split of u8500_auxdata_lookup.
 
 * In arch/arm/mach-omap2/devices.c, the includes got reshuffled.
   we need to keep linux/wl12xx.h and linux/platform_data/mailbox-omap.h.
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Merge tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC driver specific changes from Arnd Bergmann:
 "These changes are all driver specific and cross over between arm-soc
  contents and some other subsystem, in these cases cpufreq, crypto,
  dma, pinctrl, mailbox and usb, and the subsystem owners agreed to have
  these changes merged through arm-soc.

  As we proceed to untangle the dependencies between platform code and
  driver code, the amount of changes in this category is fortunately
  shrinking, for 3.11 we have 16 branches here and 101 non-merge
  changesets, the majority of which are for the stedma40 dma engine
  driver used in the ux500 platform.  Cleaning up that code touches
  multiple subsystems, but gets rid of the dependency in the end.

  The mailbox code moved out from mach-omap2 to drivers/mailbox is an
  intermediate step and is still omap specific at the moment.  Patches
  exist to generalize the subsystem and add other drivers with the same
  API, but those did not make it for 3.11."

* tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (101 commits)
  crypto: ux500: use dmaengine_submit API
  crypto: ux500: use dmaengine_prep_slave_sg API
  crypto: ux500: use dmaengine_device_control API
  crypto: ux500/crypt: add missing __iomem qualifiers
  crypto: ux500/hash: add missing static qualifiers
  crypto: ux500/hash: use readl on iomem addresses
  dmaengine: ste_dma40: Declare memcpy config as static
  ARM: ux500: Remove mop500_snowball_ethernet_clock_enable()
  ARM: ux500: Correct the EN_3v3 regulator's on/off GPIO
  ARM: ux500: Provide a AB8500 GPIO Device Tree node
  gpio: rcar: fix gpio_rcar_of_table
  gpio-rcar: Remove #ifdef CONFIG_OF around OF-specific sections
  gpio-rcar: Reference core gpio documentation in the DT bindings
  clk: exynos5250: Add enum entries for divider clock of i2s1 and i2s2
  ARM: dts: Update Samsung I2S documentation
  ARM: dts: add clock provider information for i2s controllers in Exynos5250
  ARM: dts: add Exynos audio subsystem clock controller node
  clk: samsung: register audio subsystem clocks using common clock framework
  ARM: dts: use #include for all device trees for Samsung
  pinctrl: s3c24xx: use correct header for chained_irq functions
  ...
 2013-07-02 14:33:21 -07:00
Linus Torvalds
ee1a8d402e ARM SoC device tree changes 
These changes from 30 individual branches for the most part update device
 tree files, but there are also a few source code changes that have crept
 in this time, usually in order to atomically move over a driver from
 using hardcoded data to DT probing.
 
 A number of platforms change their DT files to use the C preprocessor,
 which is causing a bit of churn, but that is hopefully only this once.
 
 There are a few conflicts with the other branches unfortunately:
 
 * in exynos5440.dtsi and kirkwood-6281.dtsi, device nodes are added
   from multiple branches. Need to be careful to have the right
   set of closing braces as git gets this one wrong.
 
 * In kirkwood.dtsi, one 'ranges' line got split into two lines, while
   another line got added. Order of the lines does not matter.
 
 * in sama5d3.dtsi, some cleanup was merged the wrong way, causing
   a bogus conflict. We want the 'dmas' and 'dma-names' properties
   to get added here.
 
 * Two lines got removed independently in arch/arm/mach-mxs/mach-mxs.c
 
 * Contents get added independently in arch/arm/mach-omap2/cclock33xx_data.c
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Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC device tree changes from Arnd Bergmann:
 "These changes from 30 individual branches for the most part update
  device tree files, but there are also a few source code changes that
  have crept in this time, usually in order to atomically move over a
  driver from using hardcoded data to DT probing.

  A number of platforms change their DT files to use the C preprocessor,
  which is causing a bit of churn, but that is hopefully only this once"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (372 commits)
  ARM: at91: dt: rm9200ek: add spi support
  ARM: at91: dt: rm9200: add spi support
  ARM: at91/DT: at91sam9n12: add SPI DMA client infos
  ARM: at91/DT: sama5d3: add SPI DMA client infos
  ARM: at91/DT: fix SPI compatibility string
  ARM: Kirkwood: Fix the internal register ranges translation
  ARM: dts: bcm281xx: change comment to C89 style
  ARM: mmc: bcm281xx SDHCI driver (dt mods)
  ARM: nomadik: add the new clocks to the device tree
  clk: nomadik: implement the Nomadik clocks properly
  ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency
  ARM: dts: omap4-panda: Fix DVI EDID reads
  ARM: dts: omap4-panda: Add USB Host support
  arm: mvebu: enable mini-PCIe connectors on Armada 370 RD
  ARM: shmobile: irqpin: add a DT property to enable masking on parent
  ARM: dts: AM43x EPOS EVM support
  ARM: dts: OMAP5: Add bandgap DT entry
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone
  ...
 2013-07-02 14:23:01 -07:00
Linus Torvalds
3883cbb6c1 ARM SoC specific changes 
These changes are all to SoC-specific code, a total of 33 branches on
 17 platforms were pulled into this. Like last time, Renesas sh-mobile
 is now the platform with the most changes, followed by OMAP and EXYNOS.
 
 Two new platforms, TI Keystone and Rockchips RK3xxx are added in
 this branch, both containing almost no platform specific code at all,
 since they are using generic subsystem interfaces for clocks, pinctrl,
 interrupts etc. The device drivers are getting merged through the
 respective subsystem maintainer trees.
 
 One more SoC (u300) is now multiplatform capable and several others
 (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
 towards that goal with this series but need more work.
 
 Also noteworthy is the work on PCI here, which is traditionally part of
 the SoC specific code. With the changes done by Thomas Petazzoni, we can
 now more easily have PCI host controller drivers as loadable modules and
 keep them separate from the platform code in drivers/pci/host. This has
 already led to the discovery that three platforms (exynos, spear and imx)
 are actually using an identical PCIe host controller and will be able
 to share a driver once support for spear and imx is added.
 
 Conflicts:
 * asm/glue-proc.h has one CPU type getting added that conflicts
   with another addition in 3.10-rc7
 * Simple context changes in arch/arm/Makefile and arch/arm/Kconfig
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Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC specific changes from Arnd Bergmann:
 "These changes are all to SoC-specific code, a total of 33 branches on
  17 platforms were pulled into this.  Like last time, Renesas sh-mobile
  is now the platform with the most changes, followed by OMAP and
  EXYNOS.

  Two new platforms, TI Keystone and Rockchips RK3xxx are added in this
  branch, both containing almost no platform specific code at all, since
  they are using generic subsystem interfaces for clocks, pinctrl,
  interrupts etc.  The device drivers are getting merged through the
  respective subsystem maintainer trees.

  One more SoC (u300) is now multiplatform capable and several others
  (shmobile, exynos, msm, integrator, kirkwood, clps711x) are moving
  towards that goal with this series but need more work.

  Also noteworthy is the work on PCI here, which is traditionally part
  of the SoC specific code.  With the changes done by Thomas Petazzoni,
  we can now more easily have PCI host controller drivers as loadable
  modules and keep them separate from the platform code in
  drivers/pci/host.  This has already led to the discovery that three
  platforms (exynos, spear and imx) are actually using an identical PCIe
  host controller and will be able to share a driver once support for
  spear and imx is added."

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (480 commits)
  ARM: integrator: let pciv3 use mem/premem from device tree
  ARM: integrator: set local side PCI addresses right
  ARM: dts: Add pcie controller node for exynos5440-ssdk5440
  ARM: dts: Add pcie controller node for Samsung EXYNOS5440 SoC
  ARM: EXYNOS: Enable PCIe support for Exynos5440
  pci: Add PCIe driver for Samsung Exynos
  ARM: OMAP5: voltagedomain data: remove temporary OMAP4 voltage data
  ARM: keystone: Move CPU bringup code to dedicated asm file
  ARM: multiplatform: always pick one CPU type
  ARM: imx: select syscon for IMX6SL
  ARM: keystone: select ARM_ERRATA_798181 only for SMP
  ARM: imx: Synertronixx scb9328 needs to select SOC_IMX1
  ARM: OMAP2+: AM43x: resolve SMP related build error
  dmaengine: edma: enable build for AM33XX
  ARM: edma: Add EDMA crossbar event mux support
  ARM: edma: Add DT and runtime PM support to the private EDMA API
  dmaengine: edma: Add TI EDMA device tree binding
  arm: add basic support for Rockchip RK3066a boards
  arm: add debug uarts for rockchip rk29xx and rk3xxx series
  arm: Add basic clocks for Rockchip rk3066a SoCs
  ...
 2013-07-02 13:43:38 -07:00
Linus Torvalds
d2033f2c1d ARM SoC cleanups 
This contains cleanups as preparation for other branches adding new
 features, we pulled 16 branches for 9 platforms into this one.
 
 Most notable here is the removal of support for ATAGS based OMAP4
 systems. Since all OMAP4 machines are fully functional with DT based
 booting in 3.10, we can remove a lot of code here.
 
 Also noteworthy is Maxime Ripard's cleanup of the machine descriptors,
 which means we need no machine descriptors in a lot more cases and
 can boot additional machines by just having the respective device
 drivers enabled.
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Merge tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC cleanups from Arnd Bergmann:
 "This contains cleanups as preparation for other branches adding new
  features, we pulled 16 branches for 9 platforms into this one.

  Most notable here is the removal of support for ATAGS based OMAP4
  systems.  Since all OMAP4 machines are fully functional with DT based
  booting in 3.10, we can remove a lot of code here.

  Also noteworthy is Maxime Ripard's cleanup of the machine descriptors,
  which means we need no machine descriptors in a lot more cases and can
  boot additional machines by just having the respective device drivers
  enabled."

* tag 'cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (76 commits)
  ARM: picoxcell: remove .nr_irqs reference
  ARM: s5p64x0: avoid build warning for uncompress.h
  ARM: SAMSUNG: Remove unused plat/regs-watchdog.h header
  ARM: SAMSUNG: Remove legacy watchdog reset code
  ARM: SAMSUNG: Let platforms use the new watchdog reset driver
  ARM: SAMSUNG: Add watchdog reset driver
  ARM: SAMSUNG: Use local definitions of watchdog registers
  watchdog: s3c2410_wdt: Use local register definitions
  ARM: S5P64X0: Use common uncompress.h part for plat-samsung
  ARM: SAMSUNG: Consolidate uncompress subroutine
  ARM: at91: drop rm9200dk board support
  ARM: dts: msm: Fix merge resolution
  ARM: OMAP1: Remove dma.h
  ARM: OMAP1: Remove legacy irda.h and irda setup from board files
  ARM: OMAP1: Remove duplicated DMA channel definitions
  ARM: OMAP1: Remove McBSP DMA channel definitions
  ARM: OMAP2+: Remove dma.h
  ARM: OMAP2+: hwmod: Remove remaining DMA channel definitions
  ARM: OMAP2+: Remove duplicated DMA channel definitions
  ARM: OMAP2+: Remove AES crypto device DMA channel definitions
  ...
 2013-07-02 13:25:35 -07:00
Linus Torvalds
fc76a258d4 Driver core patches for 3.11-rc1 
Here's the big driver core merge for 3.11-rc1
 
 Lots of little things, and larger firmware subsystem updates, all
 described in the shortlog.  Nice thing here is that we finally get rid
 of CONFIG_HOTPLUG, after 10+ years, thanks to Stephen Rohtwell (it had
 been always on for a number of kernel releases, now it's just removed.)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core

Pull driver core updates from Greg KH:
 "Here's the big driver core merge for 3.11-rc1

  Lots of little things, and larger firmware subsystem updates, all
  described in the shortlog.  Nice thing here is that we finally get rid
  of CONFIG_HOTPLUG, after 10+ years, thanks to Stephen Rohtwell (it had
  been always on for a number of kernel releases, now it's just
  removed)"

* tag 'driver-core-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits)
  driver core: device.h: fix doc compilation warnings
  firmware loader: fix another compile warning with PM_SLEEP unset
  build some drivers only when compile-testing
  firmware loader: fix compile warning with PM_SLEEP set
  kobject: sanitize argument for format string
  sysfs_notify is only possible on file attributes
  firmware loader: simplify holding module for request_firmware
  firmware loader: don't export cache_firmware and uncache_firmware
  drivers/base: Use attribute groups to create sysfs memory files
  firmware loader: fix compile warning
  firmware loader: fix build failure with !CONFIG_FW_LOADER_USER_HELPER
  Documentation: Updated broken link in HOWTO
  Finally eradicate CONFIG_HOTPLUG
  driver core: firmware loader: kill FW_ACTION_NOHOTPLUG requests before suspend
  driver core: firmware loader: don't cache FW_ACTION_NOHOTPLUG firmware
  Documentation: Tidy up some drivers/base/core.c kerneldoc content.
  platform_device: use a macro instead of platform_driver_register
  firmware: move EXPORT_SYMBOL annotations
  firmware: Avoid deadlock of usermodehelper lock at shutdown
  dell_rbu: Select CONFIG_FW_LOADER_USER_HELPER explicitly
  ...
 2013-07-02 11:44:19 -07:00
Linus Torvalds
fe3c22bd5c Char/Misc merge for 3.11-rc1 
Here's the big char/misc driver tree merge for 3.11-rc1
 
 A variety of different driver patches here.  All of these have been in
 linux-next for a while, and the networking patches were acked-by David
 Miller, as it made sense for those patches to come through this tree.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char/misc updates from Greg KH:
 "Here's the big char/misc driver tree merge for 3.11-rc1

  A variety of different driver patches here.  All of these have been in
  linux-next for a while, and the networking patches were acked-by David
  Miller, as it made sense for those patches to come through this tree"

* tag 'char-misc-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (102 commits)
  Revert "char: misc: assign file->private_data in all cases"
  drivers: uio_pdrv_genirq: Use of_match_ptr() macro
  mei: check whether hw start has succeeded
  mei: check if the hardware reset succeeded
  mei: mei_cl_connect: don't multiply the timeout twice
  mei: do not override a client writing state when buffering
  mei: move mei_cl_irq_write_complete to client.c
  UIO: Fix concurrency issue
  drivers: uio_dmem_genirq: Use of_match_ptr() macro
  char: misc: assign file->private_data in all cases
  drivers: hv: allocate synic structures before hv_synic_init()
  drivers: hv: check interrupt mask before read_index
  vme: vme_tsi148.c: fix error return code in tsi148_probe()
  FMC: fix error handling in probe() function
  fmc: avoid readl/writel namespace conflict
  FMC: NULL dereference on allocation failure
  UIO: fix uio_pdrv_genirq with device tree but no interrupt
  UIO: allow binding uio_pdrv_genirq.c to devices using command line option
  FMC: add a char-device mezzanine driver
  FMC: add a driver to write mezzanine EEPROM
  ...
 2013-07-02 11:43:33 -07:00
Linus Torvalds
ce49b6289f Staging tree merge for 3.11-rc1 
Here's the large staging tree merge for 3.11-rc1
 
 Huge thing here is the Lustre client code.  Unfortunatly, due to it not
 building properly on a wide variety of different architectures (this was
 production code???), it is currently disabled from the build so as to
 not annoy people.
 
 Other than Lustre, there are loads of comedi patches, working to clean
 up that subsystem, iio updates and new drivers, and a load of cleanups
 from the OPW applicants in their quest to get a summer internship.
 
 All of these have been in the linux-next releases for a while (hence the
 Lustre code being disabled.)
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging tree update from Greg KH:
 "Here's the large staging tree merge for 3.11-rc1

  Huge thing here is the Lustre client code.  Unfortunatly, due to it
  not building properly on a wide variety of different architectures
  (this was production code???), it is currently disabled from the build
  so as to not annoy people.

  Other than Lustre, there are loads of comedi patches, working to clean
  up that subsystem, iio updates and new drivers, and a load of cleanups
  from the OPW applicants in their quest to get a summer internship.

  All of these have been in the linux-next releases for a while (hence
  the Lustre code being disabled)"

Fixed up trivial conflict in drivers/staging/serqt_usb2/serqt_usb2.c due
to independent renamings in the staging driver cleanup and the USB
tree..

* tag 'staging-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (868 commits)
  Revert "Revert "Revert "staging/lustre: drop CONFIG_BROKEN dependency"""
  staging: rtl8192u: fix line length in r819xU_phy.h
  staging: rtl8192u: rename variables in r819xU_phy.h
  staging: rtl8192u: fix comments in r819xU_phy.h
  staging: rtl8192u: fix whitespace in r819xU_phy.h
  staging: rtl8192u: fix newlines in r819xU_phy.c
  staging: comedi: unioxx5: use comedi_alloc_spriv()
  staging: comedi: unioxx5: fix unioxx5_detach()
  silicom: checkpatch: errors caused by macros
  Staging: silicom: remove the board_t typedef in bpctl_mod.c
  Staging: silicom: capitalize labels in the bp_media_type enum
  Staging: silicom: remove bp_media_type enum typedef
  staging: rtl8192u: replace msleep(1) with usleep_range() in r819xU_phy.c
  staging: rtl8192u: rename dwRegRead and rtStatus in r819xU_phy.c
  staging: rtl8192u: replace __FUNCTION__ in r819xU_phy.c
  staging: rtl8192u: limit line size in r819xU_phy.c
  zram: allow request end to coincide with disksize
  staging: drm/imx: use generic irq chip unused field to block out invalid irqs
  staging: drm/imx: use generic irqchip
  staging: drm/imx: ipu-dmfc: use defines for ipu channel numbers
  ...
 2013-07-02 11:40:23 -07:00
Linus Torvalds
0de10f9ea6 TTY/Serial merge for 3.11-rc1 
Here is the big TTY / Serial driver merge for 3.11-rc1.
 
 It's not all that big, nothing major changed in the tty api, which is a
 nice change, just a number of serial driver fixes and updates and new
 drivers, along with some n_tty fixes to help resolve some reported
 issues.
 
 All of these have been in the linux-next releases for a while, with the
 exception of the last revert patch, which was reported this past weekend
 by two different people as being needed.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'tty-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

Pull tty/serial updates from Greg KH:
 "Here is the big TTY / Serial driver merge for 3.11-rc1.

  It's not all that big, nothing major changed in the tty api, which is
  a nice change, just a number of serial driver fixes and updates and
  new drivers, along with some n_tty fixes to help resolve some reported
  issues.

  All of these have been in the linux-next releases for a while, with
  the exception of the last revert patch, which was reported this past
  weekend by two different people as being needed."

* tag 'tty-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (51 commits)
  Revert "serial: 8250_pci: add support for another kind of NetMos Technology PCI 9835 Multi-I/O Controller"
  pch_uart: Add uart_clk selection for the MinnowBoard
  tty: atmel_serial: prepare clk before calling enable
  tty: Reset itty for other pty
  n_tty: Buffer work should not reschedule itself
  n_tty: Fix unsafe update of available buffer space
  n_tty: Untangle read completion variables
  n_tty: Encapsulate minimum_to_wake within N_TTY
  serial: omap: Fix device tree based PM runtime
  serial: imx: Fix serial clock unbalance
  serial/mpc52xx_uart: fix kernel panic when system reboot
  serial: mfd: Add sysrq support
  serial: imx: enable the clocks for console
  tty: serial: add Freescale lpuart driver support
  serial: imx: Improve Kconfig text
  serial: imx: Allow module build
  serial: imx: Fix warning when !CONFIG_SERIAL_IMX_CONSOLE
  tty/serial/sirf: fix error propagation in sirfsoc_uart_probe()
  serial: omap: fix potential NULL pointer dereference in serial_omap_runtime_suspend()
  tty: serial: Enable uartlite for ARM zynq
  ...
 2013-07-02 11:32:06 -07:00
Linus Torvalds
a84270189e USB 3.11-rc1 merge 
Here's the big USB 3.11-rc1 merge request.
 
 Lots of gadget and finally, chipidea driver updates (they were much
 needed), along with a new host controller driver, lots of little serial
 driver fixes, the removal of the 255 usb-serial device limitation, and a
 variety of other minor things.
 
 All of these have been in the linux-next releases for a while.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB updates from Greg KH:
 "Here's the big USB 3.11-rc1 merge request.

  Lots of gadget and finally, chipidea driver updates (they were much
  needed), along with a new host controller driver, lots of little
  serial driver fixes, the removal of the 255 usb-serial device
  limitation, and a variety of other minor things.

  All of these have been in the linux-next releases for a while"

* tag 'usb-3.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (254 commits)
  usb: musb: omap2430: make it compile again
  usb: chipidea: ci_hdrc_imx: access phy via private data
  xhci: Add missing unlocks on error paths
  USB: option,qcserial: move Novatel Gobi1K IDs to qcserial
  ehci-atmel.c: prepare clk before calling enable
  USB: ohci-at91: prepare clk before calling enable
  USB: HWA: fix device probe failure
  wusbcore: add entries in Documentation/ABI for new wusbhc sysfs attributes
  wusbcore: add sysfs attribute for retry count
  wusbcore: add sysfs attribute for DNTS count and interval
  usb: chipidea: drop "13xxx" infix
  usb: phy: tegra: remove duplicated include from phy-tegra-usb.c
  usb: host: xhci-plat: release mem region while removing module
  usbmisc_imx: allow autoloading on according to dt ids
  usb: fix build error without CONFIG_USB_PHY
  usb: check usb_hub_to_struct_hub() return value
  xhci: check for failed dma pool allocation
  usb: gadget: f_subset: fix missing unlock on error in geth_alloc()
  usb: gadget: f_ncm: fix missing unlock on error in ncm_alloc()
  usb: gadget: f_ecm: fix missing unlock on error in ecm_alloc()
  ...
 2013-07-02 11:31:09 -07:00
Linus Torvalds
3f490f7f99 This patch-set includes the following major enhancement patches. 
o remount_fs callback function
  o restore parent inode number to enhance the fsync performance
  o xattr security labels
  o reduce the number of redundant lock/unlock data pages
  o avoid frequent write_inode calls
 
 The other minor bug fixes are as follows.
  o endian conversion bugs
  o various bugs in the roll-forward recovery routine
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Merge tag 'for-f2fs-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

Pull f2fs updates from Jaegeuk Kim:
 "This patch-set includes the following major enhancement patches:
   - remount_fs callback function
   - restore parent inode number to enhance the fsync performance
   - xattr security labels
   - reduce the number of redundant lock/unlock data pages
   - avoid frequent write_inode calls

  The other minor bug fixes are as follows.
   - endian conversion bugs
   - various bugs in the roll-forward recovery routine"

* tag 'for-f2fs-3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (56 commits)
  f2fs: fix to recover i_size from roll-forward
  f2fs: remove the unused argument "sbi" of func destroy_fsync_dnodes()
  f2fs: remove reusing any prefree segments
  f2fs: code cleanup and simplify in func {find/add}_gc_inode
  f2fs: optimize the init_dirty_segmap function
  f2fs: fix an endian conversion bug detected by sparse
  f2fs: fix crc endian conversion
  f2fs: add remount_fs callback support
  f2fs: recover wrong pino after checkpoint during fsync
  f2fs: optimize do_write_data_page()
  f2fs: make locate_dirty_segment() as static
  f2fs: remove unnecessary parameter "offset" from __add_sum_entry()
  f2fs: avoid freqeunt write_inode calls
  f2fs: optimise the truncate_data_blocks_range() range
  f2fs: use the F2FS specific flags in f2fs_ioctl()
  f2fs: sync dir->i_size with its block allocation
  f2fs: fix i_blocks translation on various types of files
  f2fs: set sb->s_fs_info before calling parse_options()
  f2fs: support xattr security labels
  f2fs: fix iget/iput of dir during recovery
  ...
 2013-07-02 09:42:38 -07:00
Linus Torvalds
9e239bb939 Lots of bug fixes, cleanups and optimizations. In the bug fixes 
category, of note is a fix for on-line resizing file systems where the
 block size is smaller than the page size (i.e., file systems 1k blocks
 on x86, or more interestingly file systems with 4k blocks on Power or
 ia64 systems.)
 
 In the cleanup category, the ext4's punch hole implementation was
 significantly improved by Lukas Czerner, and now supports bigalloc
 file systems.  In addition, Jan Kara significantly cleaned up the
 write submission code path.  We also improved error checking and added
 a few sanity checks.
 
 In the optimizations category, two major optimizations deserve
 mention.  The first is that ext4_writepages() is now used for
 nodelalloc and ext3 compatibility mode.  This allows writes to be
 submitted much more efficiently as a single bio request, instead of
 being sent as individual 4k writes into the block layer (which then
 relied on the elevator code to coalesce the requests in the block
 queue).  Secondly, the extent cache shrink mechanism, which was
 introduce in 3.9, no longer has a scalability bottleneck caused by the
 i_es_lru spinlock.  Other optimizations include some changes to reduce
 CPU usage and to avoid issuing empty commits unnecessarily.
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 update from Ted Ts'o:
 "Lots of bug fixes, cleanups and optimizations.  In the bug fixes
  category, of note is a fix for on-line resizing file systems where the
  block size is smaller than the page size (i.e., file systems 1k blocks
  on x86, or more interestingly file systems with 4k blocks on Power or
  ia64 systems.)

  In the cleanup category, the ext4's punch hole implementation was
  significantly improved by Lukas Czerner, and now supports bigalloc
  file systems.  In addition, Jan Kara significantly cleaned up the
  write submission code path.  We also improved error checking and added
  a few sanity checks.

  In the optimizations category, two major optimizations deserve
  mention.  The first is that ext4_writepages() is now used for
  nodelalloc and ext3 compatibility mode.  This allows writes to be
  submitted much more efficiently as a single bio request, instead of
  being sent as individual 4k writes into the block layer (which then
  relied on the elevator code to coalesce the requests in the block
  queue).  Secondly, the extent cache shrink mechanism, which was
  introduce in 3.9, no longer has a scalability bottleneck caused by the
  i_es_lru spinlock.  Other optimizations include some changes to reduce
  CPU usage and to avoid issuing empty commits unnecessarily."

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (86 commits)
  ext4: optimize starting extent in ext4_ext_rm_leaf()
  jbd2: invalidate handle if jbd2_journal_restart() fails
  ext4: translate flag bits to strings in tracepoints
  ext4: fix up error handling for mpage_map_and_submit_extent()
  jbd2: fix theoretical race in jbd2__journal_restart
  ext4: only zero partial blocks in ext4_zero_partial_blocks()
  ext4: check error return from ext4_write_inline_data_end()
  ext4: delete unnecessary C statements
  ext3,ext4: don't mess with dir_file->f_pos in htree_dirblock_to_tree()
  jbd2: move superblock checksum calculation to jbd2_write_superblock()
  ext4: pass inode pointer instead of file pointer to punch hole
  ext4: improve free space calculation for inline_data
  ext4: reduce object size when !CONFIG_PRINTK
  ext4: improve extent cache shrink mechanism to avoid to burn CPU time
  ext4: implement error handling of ext4_mb_new_preallocation()
  ext4: fix corruption when online resizing a fs with 1K block size
  ext4: delete unused variables
  ext4: return FIEMAP_EXTENT_UNKNOWN for delalloc extents
  jbd2: remove debug dependency on debug_fs and update Kconfig help text
  jbd2: use a single printk for jbd_debug()
  ...
 2013-07-02 09:39:34 -07:00
Linus Torvalds
63580e51bb Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 
Pull VFS patches (part 1) from Al Viro:
 "The major change in this pile is ->readdir() replacement with
  ->iterate(), dealing with ->f_pos races in ->readdir() instances for
  good.

  There's a lot more, but I'd prefer to split the pull request into
  several stages and this is the first obvious cutoff point."

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (67 commits)
  [readdir] constify ->actor
  [readdir] ->readdir() is gone
  [readdir] convert ecryptfs
  [readdir] convert coda
  [readdir] convert ocfs2
  [readdir] convert fatfs
  [readdir] convert xfs
  [readdir] convert btrfs
  [readdir] convert hostfs
  [readdir] convert afs
  [readdir] convert ncpfs
  [readdir] convert hfsplus
  [readdir] convert hfs
  [readdir] convert befs
  [readdir] convert cifs
  [readdir] convert freevxfs
  [readdir] convert fuse
  [readdir] convert hpfs
  reiserfs: switch reiserfs_readdir_dentry to inode
  reiserfs: is_privroot_deh() needs only directory inode, actually
  ...
 2013-07-02 09:28:37 -07:00
Ingo Molnar
2fd1b48788 Linux 3.10 
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Merge tag 'v3.10' into sched/core

Merge in a recent upstream commit:

  c2853c8df5 include/linux/math64.h: add div64_ul()

because:

  72a4cf20cb sched: Change cfs_rq load avg to unsigned long

relies on it.

[ We don't rebase sched/core for this, because the handful of
  followup commits after the broken commit are not behavioral
  changes so are unlikely to be needed during bisection. ]

Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2013-07-01 11:18:53 +02:00
Russell King
cbd379b100 Merge branches 'fixes', 'mcpm', 'misc' and 'mmci' into for-next 2013-06-29 11:43:28 +01:00
Jeff Layton
7b2296afb3 locks: give the blocked_hash its own spinlock 
There's no reason we have to protect the blocked_hash and file_lock_list
with the same spinlock. With the tests I have, breaking it in two gives
a barely measurable performance benefit, but it seems reasonable to make
this locking as granular as possible.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-06-29 12:57:46 +04:00
Jeff Layton
3999e49364 locks: add a new "lm_owner_key" lock operation 
Currently, the hashing that the locking code uses to add these values
to the blocked_hash is simply calculated using fl_owner field. That's
valid in most cases except for server-side lockd, which validates the
owner of a lock based on fl_owner and fl_pid.

In the case where you have a small number of NFS clients doing a lot
of locking between different processes, you could end up with all
the blocked requests sitting in a very small number of hash buckets.

Add a new lm_owner_key operation to the lock_manager_operations that
will generate an unsigned long to use as the key in the hashtable.
That function is only implemented for server-side lockd, and simply
XORs the fl_owner and fl_pid.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-06-29 12:57:45 +04:00
Jeff Layton
1c8c601a8c locks: protect most of the file_lock handling with i_lock 
Having a global lock that protects all of this code is a clear
scalability problem. Instead of doing that, move most of the code to be
protected by the i_lock instead. The exceptions are the global lists
that the ->fl_link sits on, and the ->fl_block list.

->fl_link is what connects these structures to the
global lists, so we must ensure that we hold those locks when iterating
over or updating these lists.

Furthermore, sound deadlock detection requires that we hold the
blocked_list state steady while checking for loops. We also must ensure
that the search and update to the list are atomic.

For the checking and insertion side of the blocked_list, push the
acquisition of the global lock into __posix_lock_file and ensure that
checking and update of the  blocked_list is done without dropping the
lock in between.

On the removal side, when waking up blocked lock waiters, take the
global lock before walking the blocked list and dequeue the waiters from
the global list prior to removal from the fl_block list.

With this, deadlock detection should be race free while we minimize
excessive file_lock_lock thrashing.

Finally, in order to avoid a lock inversion problem when handling
/proc/locks output we must ensure that manipulations of the fl_block
list are also protected by the file_lock_lock.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-06-29 12:57:42 +04:00
Linus Torvalds
da53be12bb Don't pass inode to ->d_hash() and ->d_compare() 
Instances either don't look at it at all (the majority of cases) or
only want it to find the superblock (which can be had as dentry->d_sb).
A few cases that want more are actually safe with dentry->d_inode -
the only precaution needed is the check that it hadn't been replaced with
NULL by rmdir() or by overwriting rename(), which case should be simply
treated as cache miss.

Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-06-29 12:57:36 +04:00
Al Viro
2233f31aad [readdir] ->readdir() is gone 
everything's converted to ->iterate()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-06-29 12:57:04 +04:00
Al Viro
5c0ba4e076 [readdir] introduce iterate_dir() and dir_context 
iterate_dir(): new helper, replacing vfs_readdir().

struct dir_context: contains the readdir callback (and will get more stuff
in it), embedded into whatever data that callback wants to deal with;
eventually, we'll be passing it to ->readdir() replacement instead of
(data,filldir) pair.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2013-06-29 12:46:46 +04:00
Thomas Gleixner
ccc414f839 genirq: Add the generic chip to the genirq docbook 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Randy Dunlap <rdunlap@infradead.org>
 2013-06-28 12:56:04 +02:00
Linus Torvalds
98b6ed0f2b Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net 
Pull networking fixes from David Miller:

 1) Found via trinity:

    If you connect up an ipv6 socket to an ipv4 mapped address then an
    ipv6 one, sendmsg() can croak because ip6_sk_dst_check() assumes the
    route cached in the socket is an ipv6 one.  In this case there is an
    ipv4 route attached, so it gets stomped on.

    Reported by Dave Jones and Hannes Frederic Sowa, fixed by Eric
    Dumazet.

 2) AF_KEY notifications leak some kernel memory to userspace, fix from
    Mathias Krause.

 3) DLCI calls __dev_get_by_name() without proper locking, and dlci_del
    doesn't validate that the device being deleted is actually a DLCI
    one.  Fixes from Li Zefan.

 4) Length check on bluetooth l2cap information responses is wrong, each
    response type has a different lenth, so we should make sure it's in
    a given range rather than enforce one single valid length.  From
    Jaganath Kanakkassery.

 5) Receive FIFO overflow is really easy to trigger in stress scenerios
    in the sh_eth driver, but the event isn't being handled properly at
    all.  Specifically, the mask of error interrupts doesn't include the
    event so we never clear it, resulting in the driver becomming wedged
    processing an interrupt that never gets cleared.

    Fix from Sergei Shtylyov.

 6) qlcnic sleeps while holding a spinlock, use mdelay() instead of
    msleep().  From Shahed Shaikh.

 7) Missing curly braces causes SIP netfilter NAT module to always drop
    packets.  Fix from Balazs Peter Odor.

 8) ipt_ULOG in netfilter passes the wrong value to timer setup, causing
    the timer to dereference crap when it fires.  Fix from Gao Feng.

 9) Missing RCU protection around txq->axq_acq traversal in
    ath_txq_schedule().  Fix from Felix Fietkau.

10) Idle state transition test in ath9k_htc_config() is reversed, fix
    from Sujith Manoharan.

11) IPV6 forwarding handles unicast Router Alert packets incorrectly.
    It tests the wrong option state.  Previously opt->ra being non-zero
    indicated a router alert marking in the SKB, but now it's indicated
    by a bit in opt->flags.  Fix from YOSHIFUJI Hideaki.

12) SKB leak in GRE tunnel GSO handling, from Eric Dumazet.

13) get_user_pages_fast() error handling in TUN and MACVTAP use the same
    local variable for the base index and the loop iterator for page
    traversal, oops! Fix from Michael S Tsirkin.

14) ipv6_get_lladdr() can fail, and we must therefore check it's return
    value in inet6_set_iftoken().  For from Hannes Frederic Sowa.

15) If you change an interface name and meanwhile can sneak in something
    that looks up the name (like SO_BINDTODEVICE or SIOCGIFNAME) we can
    deadlock with CONFIG_PREEMPT=n.  Fix this by providing a helper
    function that properly uses raw_seqcount_begin().  From Nicolas
    Schichan.

16) Chain noise calibration test is inverted in iwlwifi, fix from
    Nikolay Martynov.

17) Properly set TX iwlwifi descriptor flags for back requests.  Fix
    from Emmanuel Grumbach.

18) We can't assume skb_transport_header() is set in xt_TCPOPTSTRAP
    module, fix from Pablo Neira Ayuso.

19) Some crummy APs don't provide the proper High Throughput info in
    association response frames.  Add a workaround by assume we'll use
    whatever is in the beacon/probe.  Fix from Johannes Berg.

20) mac80211 call to rate_idx_match_mask() swaps two arguments (mask and
    channel width).  Fix from Simon Wunderlich.

21) xt_TCPMSS (like xt_TCPOPTSTRAP) must not try to handle fragmented
    frames.  Fix from Phil Oester.

22) Fix rate control regression causing iwlwifi/iwlegacy chips to use
    1Mbit/s on pre-11n networks.  From Moshe Benji and Stanslaw Gruszka.

23) Disable brcmsmac power-save functions, they cause regressions.  From
    Arend van Spriel.

24) Enforce a sane minimum MTU in l2cap_build_cmd() otherwise we can
    easily crash.  Fix from Anderson Lizardo.

25) If a learning packet arrives during vxlan_stop() we crash, easily
    fixed by checking netif_running().  From Stephen Hemminger.

26) Static vxlan FDB entries should not be migrated, also from Stephen.

27) skb_clone() failures not handled in vxlan_xmit(), oops.  Also from
    Stephen.

28) Add minimal driver for AR816x/AR817x ethernet chips, from Johannes
    Berg.

29) Fix regression in userspace VLAN acceleration control, added by the
    802.1ad support changes.  Fix from Fernando Luis Vazquez Cao.

30) Interval selection for MLD queries in the bridging code was
    reversed.  Fix from Linus Lüssing.

31) ipv6's ndisc_send_redirect() erroneously writes to the packet we
    received not the packet we are building to send out.  Fix from
    Matthias Schiffer.

32) Don't free netdev before unregistering it, in usb_8dev can driver.
    From Marc Kleine-Budde.

33) Fix nl80211 attribute buffer races, from Johannes Berg.

34) Although netlink_diag.h is under uapi/ it isn't present in Kbuild.
    From Stephen Hemminger.

35) Wrong address and family passed to MD5 key lookups in TCP, from
    Aydin Arik.

36) phy_type attribute created by SFC driver should not be writable.
    From Ben Hutchings.

37) Receive/Transmit queue allocations in pxa168_eth and mv643xx_eth
    should use kzalloc().  Otherwise if setup fails half-way, we'll
    dereference garbage when trying to teardown the rings.  From Lubomir
    Rintel.

38) Fix double-allocation of dst (resulting in unfreeable net device) in
    ipv6's init_loopback().  From Gao Feng.

39) Fix fragmentation handling SKB leak in netfilter conntrack, we were
    freeing the wrong skb pointer.  From Phil Oester.

40) Don't report "-1" (SPEED_UNKNOWN) in bond_miimon_commit(), from
    Nikolay Aleksandrov.

41) davinci_cpdma doesn't check for DMA mapping errors, letting the
    device scribble to random addresses.  From Sebastian Siewior.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (69 commits)
  dlci: validate the net device in dlci_del()
  dlci: acquire rtnl_lock before calling __dev_get_by_name()
  af_key: fix info leaks in notify messages
  ipv6: ip6_sk_dst_check() must not assume ipv6 dst
  net: fix kernel deadlock with interface rename and netdev name retrieval.
  net/tg3: Avoid delay during MMIO access
  ipv6: check return value of ipv6_get_lladdr
  macvtap: fix recovery from gup errors
  tun: fix recovery from gup errors
  gre: fix a possible skb leak
  ipv6: Process unicast packet with Router Alert by checking flag in skb.
  ath9k_htc: Handle IDLE state transition properly
  ath9k: fix an RCU issue in calling ieee80211_get_tx_rates
  netfilter: ipt_ULOG: fix incorrect setting of ulog timer
  netfilter: ctnetlink: send event when conntrack label was modified
  netfilter: nf_nat_sip: fix mangling
  qlcnic: Do not sleep while holding spinlock
  drivers: net: cpsw: fix compilation error with cpsw driver
  tcp: doc : fix the syncookies default value
  sh_eth: fix misreporting of transmit abort
  ...
 2013-06-26 19:24:37 -10:00
Jingoo Han
340cba6092 pci: Add PCIe driver for Samsung Exynos 
Exynos5440 has a PCIe controller which can be used as Root Complex.
This driver supports a PCIe controller as Root Complex mode.

Signed-off-by: Surendranath Gurivireddy Balla <suren.reddy@samsung.com>
Signed-off-by: Siva Reddy Kallam <siva.kallam@samsung.com>
Signed-off-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Kukjin Kim <kgene.kim@samsung.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2013-06-26 20:14:59 +02:00
Maarten Lankhorst
040a0a3710 mutex: Add support for wound/wait style locks 
Wound/wait mutexes are used when other multiple lock
acquisitions of a similar type can be done in an arbitrary
order. The deadlock handling used here is called wait/wound in
the RDBMS literature: The older tasks waits until it can acquire
the contended lock. The younger tasks needs to back off and drop
all the locks it is currently holding, i.e. the younger task is
wounded.

For full documentation please read Documentation/ww-mutex-design.txt.

References: https://lwn.net/Articles/548909/
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Rob Clark <robdclark@gmail.com>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: dri-devel@lists.freedesktop.org
Cc: linaro-mm-sig@lists.linaro.org
Cc: rostedt@goodmis.org
Cc: daniel@ffwll.ch
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/51C8038C.9000106@canonical.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
 2013-06-26 12:10:56 +02:00
Olof Johansson
37c5a9f7d7 Merge branch 'sti/soc' into next/late 
From Srinivas Kandagatla <srinivas.kandagatla@st.com>:

This patch-set adds basic support for STMicroelectronics STi series SOCs
which includes STiH415 and STiH416 with B2000 and B2020 board support.

STiH415 and STiH416 are dual-core ARM Cortex-A9 CPU, designed for
use in Set-top-boxes. The SOC support is available in mach-sti which
contains support code for STiH415, STiH416 SOCs including the generic
board support.

The reason for adding two SOCs at this patch set is to show that no new
C code is required for second SOC(STiH416) support.

* sti/soc:
  ARM: stih41x: Add B2020 board support
  ARM: stih41x: Add B2000 board support
  ARM: sti: Add DEBUG_LL console support
  ARM: sti: Add STiH416 SOC support
  ARM: sti: Add STiH415 SOC support

Signed-off-by: Olof Johansson <olof@lixom.net>
 2013-06-25 13:43:28 -07:00
Olof Johansson
2655e82835 Merge branch 'nspire/soc' into next/late 
From Daniel Tang <dt.tangr@gmail.com>

This is the initial platform code for the TI-Nspire graphing
calculators. The platform support is rather unspectacular, but still
contains platform data for the LCD panel, which will get removed once
there is a DT binding for the AMBA CLCD driver.

* nspire/soc:
  arm: Add Initial TI-Nspire support
  arm: Add device trees for TI-Nspire hardware

Signed-off-by: Olof Johansson <olof@lixom.net>
 2013-06-25 13:43:18 -07:00
Srinivas Kandagatla
15969b4577 ARM: sti: Add STiH416 SOC support 
The STiH416 is advanced HD AVC processor with 3D graphics acceleration
and 1.2-GHz ARM Cortex-A9 SMP CPU.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Stephen Gallimore <stephen.gallimore@st.com>
CC: Stuart Menefy <stuart.menefy@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Linus Walleij <linus.walleij@linaro.org>

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
 2013-06-25 13:26:58 -07:00
Srinivas Kandagatla
65ebcc1158 ARM: sti: Add STiH415 SOC support 
The STiH415 is the next generation of HD, AVC set-top box processors for
satellite, cable, terrestrial and IP-STB markets. It is an ARM Cortex-A9
1.0 GHz, dual-core CPU.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
CC: Stephen Gallimore <stephen.gallimore@st.com>
CC: Stuart Menefy <stuart.menefy@st.com>
CC: Arnd Bergmann <arnd@arndb.de>
CC: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
 2013-06-25 13:26:47 -07:00
Christian Ruppert
b06eb0173e irqchip: Add TB10x interrupt controller driver 
The SOC interrupt controller driver for the Abilis Systems TB10x series of
SOCs based on ARC700 CPUs.

Signed-off-by: Christian Ruppert <christian.ruppert@abilis.com>
Signed-off-by: Pierrick Hascoet <pierrick.hascoet@abilis.com>
Cc: Vineet Gupta <Vineet.Gupta1@synopsys.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Rob Landley <rob@landley.net>
Cc: devicetree-discuss@lists.ozlabs.org
Link: http://lkml.kernel.org/r/1372177797-9458-1-git-send-email-christian.ruppert@abilis.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
 2013-06-25 18:54:21 +02:00
Olof Johansson
cbe461f654 based on tags/soc-exynos5420-1 
- add pinctrl support for exynos5420
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Merge tag 'soc-exynos5420-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/late

From Kukjin Kim, this adds pinctrl support for Exynos 5420.

* tag 'soc-exynos5420-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
  pinctrl: exynos: add exynos5420 SoC specific data
  ARM: dts: add pinctrl support to EXYNOS5420

Signed-off-by: Olof Johansson <olof@lixom.net>
 2013-06-25 08:50:18 -07:00