pandora-kernel.git
12 years agoslub: When allocating a new slab also prep the first object
Christoph Lameter [Fri, 22 Jul 2011 14:35:14 +0000 (09:35 -0500)]
slub: When allocating a new slab also prep the first object

We need to branch to the debug code for the first object if we allocate
a new slab otherwise the first object will be marked wrongly as inactive.

Tested-by: Rabin Vincent <rabin@rab.in>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: disable interrupts in cmpxchg_double_slab when falling back to pagelock
Christoph Lameter [Thu, 14 Jul 2011 17:49:12 +0000 (12:49 -0500)]
slub: disable interrupts in cmpxchg_double_slab when falling back to pagelock

Split cmpxchg_double_slab into two functions. One for the case where we know that
interrupts are disabled (and therefore the fallback does not need to disable
interrupts) and one for the other cases where fallback will also disable interrupts.

This fixes the issue that __slab_free called cmpxchg_double_slab in some scenarios
without disabling interrupts.

Tested-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoAvoid duplicate _count variables in page_struct
Christoph Lameter [Thu, 14 Jul 2011 17:48:14 +0000 (12:48 -0500)]
Avoid duplicate _count variables in page_struct

Restructure the union / struct cascade in struct page so that
we only have one definition of _count.

Tested-by: Hugh Dickins <hughd@google.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoRevert "SLUB: Fix build breakage in linux/mm_types.h"
Pekka Enberg [Mon, 18 Jul 2011 12:16:55 +0000 (15:16 +0300)]
Revert "SLUB: Fix build breakage in linux/mm_types.h"

This reverts commit ea6bd8ee1a2ccdffc38b2b1fcfe941addfafaade.

12 years agoSLUB: Fix build breakage in linux/mm_types.h
Christoph Lameter [Wed, 6 Jul 2011 14:46:18 +0000 (09:46 -0500)]
SLUB: Fix build breakage in linux/mm_types.h

On Wed, 6 Jul 2011, Jonathan Cameron wrote:

> Getting:
>
>   CHK     include/linux/version.h
>   CHK     include/generated/utsrelease.h
> make[1]: `include/generated/mach-types.h' is up to date.
>   CC      arch/arm/kernel/asm-offsets.s
> In file included from include/linux/sched.h:64:0,
>                  from arch/arm/kernel/asm-offsets.c:13:
> include/linux/mm_types.h:74:15: error: duplicate member '_count'
> make[1]: *** [arch/arm/kernel/asm-offsets.s] Error 1
> make: *** [prepare0] Error 2
>
> Issue looks to have been introduced by
>
>     mm: Rearrange struct page
>
fc9bb8c768abe7ae10861c3510e01a95f98d5933
>
> Guessing it's a known issue, but just thought I'd flag it up in case
> it's something very specific about my build.
>
> gcc-2.6 armv7a
>
> Reverting that patch works, but given I don't know the history, I'm
> not proposing doing that in general!

Well _count exists in two unionized structs but always has the same offset
within the larger struct. Maybe ARM creates different offsets there for
some reason?

The following is a patch to restructure the union / structs combo in such
a way that only a single definition of _count

Reported-by: Jonathan Cameron <jic23@cam.ac.uk>
Tested-by: Piotr Hosowicz <piotr@hosowicz.com>
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: slabinfo update for cmpxchg handling
Christoph Lameter [Wed, 1 Jun 2011 17:26:00 +0000 (12:26 -0500)]
slub: slabinfo update for cmpxchg handling

Update the statistics handling and the slabinfo tool to include the new
statistics in the reports it generates.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Not necessary to check for empty slab on load_freelist
Christoph Lameter [Wed, 1 Jun 2011 17:25:59 +0000 (12:25 -0500)]
slub: Not necessary to check for empty slab on load_freelist

load_freelist is now only branched to only if there are objects available.
So no need to check the object variable for NULL.

Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: fast release on full slab
Christoph Lameter [Wed, 1 Jun 2011 17:25:58 +0000 (12:25 -0500)]
slub: fast release on full slab

Make deactivation occur implicitly while checking out the current freelist.

This avoids one cmpxchg operation on a slab that is now fully in use.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Add statistics for the case that the current slab does not match the node
Christoph Lameter [Wed, 1 Jun 2011 17:25:57 +0000 (12:25 -0500)]
slub: Add statistics for the case that the current slab does not match the node

Slub reloads the per cpu slab if the page does not satisfy the NUMA condition. Track
those reloads since doing so has a performance impact.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Get rid of the another_slab label
Christoph Lameter [Wed, 1 Jun 2011 17:25:56 +0000 (12:25 -0500)]
slub: Get rid of the another_slab label

We can avoid deactivate slab in special cases if we do the
deactivation of slabs in each code flow that leads to new_slab.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Avoid disabling interrupts in free slowpath
Christoph Lameter [Wed, 1 Jun 2011 17:25:55 +0000 (12:25 -0500)]
slub: Avoid disabling interrupts in free slowpath

Disabling interrupts can be avoided now. However, list operation still require
disabling interrupts since allocations can occur from interrupt
contexts and there is no way to perform atomic list operations.

The acquition of the list_lock therefore has to disable interrupts as well.

Dropping interrupt handling significantly simplifies the slowpath.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Disable interrupts in free_debug processing
Christoph Lameter [Wed, 1 Jun 2011 17:25:54 +0000 (12:25 -0500)]
slub: Disable interrupts in free_debug processing

We will be calling free_debug_processing with interrupts disabled
in some case when the later patches are applied. Some of the
functions called by free_debug_processing expect interrupts to be
off.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Invert locking and avoid slab lock
Christoph Lameter [Wed, 1 Jun 2011 17:25:53 +0000 (12:25 -0500)]
slub: Invert locking and avoid slab lock

Locking slabs is no longer necesary if the arch supports cmpxchg operations
and if no debuggin features are used on a slab. If the arch does not support
cmpxchg then we fallback to use the slab lock to do a cmpxchg like operation.

The patch also changes the lock order. Slab locks are subsumed to the node lock
now. With that approach slab_trylocking is no longer necessary.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Rework allocator fastpaths
Christoph Lameter [Wed, 1 Jun 2011 17:25:52 +0000 (12:25 -0500)]
slub: Rework allocator fastpaths

Rework the allocation paths so that updates of the page freelist, frozen state
and number of objects use cmpxchg_double_slab().

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Pass kmem_cache struct to lock and freeze slab
Christoph Lameter [Wed, 1 Jun 2011 17:25:51 +0000 (12:25 -0500)]
slub: Pass kmem_cache struct to lock and freeze slab

We need more information about the slab for the cmpxchg implementation.

Signed-off-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: explicit list_lock taking
Christoph Lameter [Wed, 1 Jun 2011 17:25:50 +0000 (12:25 -0500)]
slub: explicit list_lock taking

The allocator fastpath rework does change the usage of the list_lock.
Remove the list_lock processing from the functions that hide them from the
critical sections and move them into those critical sections.

This in turn simplifies the support functions (no __ variant needed anymore)
and simplifies the lock handling on bootstrap.

Inline add_partial since it becomes pretty simple.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Add cmpxchg_double_slab()
Christoph Lameter [Wed, 1 Jun 2011 17:25:49 +0000 (12:25 -0500)]
slub: Add cmpxchg_double_slab()

Add a function that operates on the second doubleword in the page struct
and manipulates the object counters, the freelist and the frozen attribute.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agomm: Rearrange struct page
Christoph Lameter [Wed, 1 Jun 2011 17:25:48 +0000 (12:25 -0500)]
mm: Rearrange struct page

We need to be able to use cmpxchg_double on the freelist and object count
field in struct page. Rearrange the fields in struct page according to
doubleword entities so that the freelist pointer comes before the counters.
Do the rearranging with a future in mind where we use more doubleword
atomics to avoid locking of updates to flags/mapping or lru pointers.

Create another union to allow access to counters in struct page as a
single unsigned long value.

The doublewords must be properly aligned for cmpxchg_double to work.
Sadly this increases the size of page struct by one word on some architectures.
But as a resultpage structs are now cacheline aligned on x86_64.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Move page->frozen handling near where the page->freelist handling occurs
Christoph Lameter [Wed, 1 Jun 2011 17:25:46 +0000 (12:25 -0500)]
slub: Move page->frozen handling near where the page->freelist handling occurs

This is necessary because the frozen bit has to be handled in the same cmpxchg_double
with the freelist and the counters.

Signed-off-by: Christoph Lameter <cl@linux.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Do not use frozen page flag but a bit in the page counters
Christoph Lameter [Wed, 1 Jun 2011 17:25:45 +0000 (12:25 -0500)]
slub: Do not use frozen page flag but a bit in the page counters

Do not use a page flag for the frozen bit. It needs to be part
of the state that is handled with cmpxchg_double(). So use a bit
in the counter struct in the page struct for that purpose.

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoslub: Push irq disable into allocate_slab()
Christoph Lameter [Wed, 1 Jun 2011 17:25:44 +0000 (12:25 -0500)]
slub: Push irq disable into allocate_slab()

Do the irq handling in allocate_slab() instead of __slab_alloc().

__slab_alloc() is already cluttered and allocate_slab() is already
fiddling around with gfp flags.

v6->v7:
Only increment ORDER_FALLBACK if we get a page during fallback

Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
12 years agoMerge remote branch 'tip/x86/atomic' into slub/lockless
Pekka Enberg [Sat, 2 Jul 2011 10:26:23 +0000 (13:26 +0300)]
Merge remote branch 'tip/x86/atomic' into slub/lockless

12 years agoLinux 3.0-rc5 v3.0-rc5
Linus Torvalds [Tue, 28 Jun 2011 02:12:22 +0000 (19:12 -0700)]
Linux 3.0-rc5

12 years agodrm/i915: more struct_mutex locking
Hugh Dickins [Mon, 27 Jun 2011 23:18:20 +0000 (16:18 -0700)]
drm/i915: more struct_mutex locking

When auditing the locking in i915_gem.c (for a prospective change which
I then abandoned), I noticed two places where struct_mutex is not held
across GEM object manipulations that would usually require it.

Since one is in initial setup and the other in driver unload, I'm
guessing the mutex is not required for either; but post a patch in case
it is.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrm/i915: use shmem_truncate_range
Hugh Dickins [Mon, 27 Jun 2011 23:18:19 +0000 (16:18 -0700)]
drm/i915: use shmem_truncate_range

The interface to ->truncate_range is changing very slightly: once "tmpfs:
take control of its truncate_range" has been applied, this can be applied.
 For now there is only a slight inefficiency while this remains unapplied,
but it will soon become essential for managing shmem's use of swap.

Change i915_gem_object_truncate() to use shmem_truncate_range() directly:
which should also spare i915 later change if we switch from
inode_operations->truncate_range to file_operations->fallocate.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrm/i915: use shmem_read_mapping_page
Hugh Dickins [Mon, 27 Jun 2011 23:18:18 +0000 (16:18 -0700)]
drm/i915: use shmem_read_mapping_page

Soon tmpfs will stop supporting ->readpage and read_cache_page_gfp(): once
"tmpfs: add shmem_read_mapping_page_gfp" has been applied, this patch can
be applied to ease the transition.

Make i915_gem_object_get_pages_gtt() use shmem_read_mapping_page_gfp() in
the one place it's needed; elsewhere use shmem_read_mapping_page(), with
the mapping's gfp_mask properly initialized.

Forget about __GFP_COLD: since tmpfs initializes its pages with memset,
asking for a cold page is counter-productive.

Include linux/shmem_fs.h also in drm_gem.c: with shmem_file_setup() now
declared there too, we shall remove the prototype from linux/mm.h later.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Keith Packard <keithp@keithp.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrm/ttm: use shmem_read_mapping_page
Hugh Dickins [Mon, 27 Jun 2011 23:18:17 +0000 (16:18 -0700)]
drm/ttm: use shmem_read_mapping_page

Soon tmpfs will stop supporting ->readpage and read_mapping_page(): once
"tmpfs: add shmem_read_mapping_page_gfp" has been applied, this patch can
be applied to ease the transition.

ttm_tt_swapin() and ttm_tt_swapout() use shmem_read_mapping_page() in
place of read_mapping_page(), since their swap_space has been created with
shmem_file_setup().

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrivers/tty/serial/8250_pci.c: fix warning
Andrew Morton [Mon, 27 Jun 2011 23:18:16 +0000 (16:18 -0700)]
drivers/tty/serial/8250_pci.c: fix warning

Fis the warning

  drivers/tty/serial/8250_pci.c:1457: warning: initialization from incompatible pointer type

Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrivers/misc/ioc4.c: fix section mismatch / race condition
Ralf Baechle [Mon, 27 Jun 2011 23:18:15 +0000 (16:18 -0700)]
drivers/misc/ioc4.c: fix section mismatch / race condition

Fix this section mismatch:

  WARNING: drivers/misc/ioc4.o(.data+0x144): Section mismatch in reference from the variable ioc4_load_modules_work to the function .devinit.text:ioc4_load_modules()
  The variable ioc4_load_modules_work references
  the function __devinit ioc4_load_modules()
  If the reference is valid then annotate the
  variable with __init* or __refdata (see linux/init.h) or name the variable:
  *driver, *_template, *_timer, *_sht, *_ops, *_probe, *_probe_one, *_console

This one is potentially fatal; by the time ioc4_load_modules is invoked
it may already have been freed.  For that reason ioc4_load_modules_work
can't be turned to __devinitdata but also because it's referenced in
ioc4_exit.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Brent Casavant <bcasavan@sgi.com>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrivers/leds/leds-lp5523.c: fix section mismatches
Ralf Baechle [Mon, 27 Jun 2011 23:18:14 +0000 (16:18 -0700)]
drivers/leds/leds-lp5523.c: fix section mismatches

Fix this section mismatch:

  WARNING: drivers/leds/leds-lp5523.o(.text+0x12f4): Section mismatch in reference from the function lp5523_probe() to the function .init.text:lp5523_init_led()
  The function lp5523_probe() references
  the function __init lp5523_init_led().
  This is often because lp5523_probe lacks a __init
  annotation or the annotation of lp5523_init_led is wrong.

Fixing this one triggers one more mismatch, fix that one as well.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrivers/leds/leds-lp5521.c: fix section mismatches
Ralf Baechle [Mon, 27 Jun 2011 23:18:13 +0000 (16:18 -0700)]
drivers/leds/leds-lp5521.c: fix section mismatches

Fix this section mismatch:

  WARNING: drivers/leds/leds-lp5521.o(.text+0xf2c): Section mismatch in reference from the function lp5521_probe() to the function .init.text:lp5521_init_led()
  The function lp5521_probe() references
  the function __init lp5521_init_led().
  This is often because lp5521_probe lacks a __init
  annotation or the annotation of lp5521_init_led is wrong.

Fixing this mismatch triggers one more mismatch, fix that one as well.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomemcg: fix direct softlimit reclaim to be called in limit path
KAMEZAWA Hiroyuki [Mon, 27 Jun 2011 23:18:12 +0000 (16:18 -0700)]
memcg: fix direct softlimit reclaim to be called in limit path

Commit d149e3b25d7c ("memcg: add the soft_limit reclaim in global direct
reclaim") adds a softlimit hook to shrink_zones().  By this, soft limit
is called as

   try_to_free_pages()
       do_try_to_free_pages()
           shrink_zones()
               mem_cgroup_soft_limit_reclaim()

Then, direct reclaim is memcg softlimit hint aware, now.

But, the memory cgroup's "limit" path can call softlimit shrinker.

   try_to_free_mem_cgroup_pages()
       do_try_to_free_pages()
           shrink_zones()
               mem_cgroup_soft_limit_reclaim()

This will cause a global reclaim when a memcg hits limit.

This is bug. soft_limit_reclaim() should be called when
scanning_global_lru(sc) == true.

And the commit adds a variable "total_scanned" for counting softlimit
scanned pages....it's not "total".  This patch removes the variable and
update sc->nr_scanned instead of it.  This will affect shrink_slab()'s
scan condition but, global LRU is scanned by softlimit and I think this
change makes sense.

TODO: avoid too much scanning of a zone when softlimit did enough work.

Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Cc: Ying Han <yinghan@google.com>
Cc: Michal Hocko <mhocko@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agotaskstats: don't allow duplicate entries in listener mode
Vasiliy Kulikov [Mon, 27 Jun 2011 23:18:11 +0000 (16:18 -0700)]
taskstats: don't allow duplicate entries in listener mode

Currently a single process may register exit handlers unlimited times.
It may lead to a bloated listeners chain and very slow process
terminations.

Eg after 10KK sent TASKSTATS_CMD_ATTR_REGISTER_CPUMASKs ~300 Mb of
kernel memory is stolen for the handlers chain and "time id" shows 2-7
seconds instead of normal 0.003.  It makes it possible to exhaust all
kernel memory and to eat much of CPU time by triggerring numerous exits
on a single CPU.

The patch limits the number of times a single process may register
itself on a single CPU to one.

One little issue is kept unfixed - as taskstats_exit() is called before
exit_files() in do_exit(), the orphaned listener entry (if it was not
explicitly deregistered) is kept until the next someone's exit() and
implicit deregistration in send_cpu_listeners().  So, if a process
registered itself as a listener exits and the next spawned process gets
the same pid, it would inherit taskstats attributes.

Signed-off-by: Vasiliy Kulikov <segooon@gmail.com>
Cc: Balbir Singh <bsingharora@gmail.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomm: fix assertion mapping->nrpages == 0 in end_writeback()
Jan Kara [Mon, 27 Jun 2011 23:18:10 +0000 (16:18 -0700)]
mm: fix assertion mapping->nrpages == 0 in end_writeback()

Under heavy memory and filesystem load, users observe the assertion
mapping->nrpages == 0 in end_writeback() trigger.  This can be caused by
page reclaim reclaiming the last page from a mapping in the following
race:

CPU0 CPU1
  ...
  shrink_page_list()
    __remove_mapping()
      __delete_from_page_cache()
        radix_tree_delete()
evict_inode()
  truncate_inode_pages()
    truncate_inode_pages_range()
      pagevec_lookup() - finds nothing
  end_writeback()
    mapping->nrpages != 0 -> BUG
        page->mapping = NULL
        mapping->nrpages--

Fix the problem by doing a reliable check of mapping->nrpages under
mapping->tree_lock in end_writeback().

Analyzed by Jay <jinshan.xiong@whamcloud.com>, lost in LKML, and dug out
by Miklos Szeredi <mszeredi@suse.de>.

Cc: Jay <jinshan.xiong@whamcloud.com>
Cc: Miklos Szeredi <mszeredi@suse.de>
Signed-off-by: Jan Kara <jack@suse.cz>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomm/memory-failure.c: fix spinlock vs mutex order
Peter Zijlstra [Mon, 27 Jun 2011 23:18:09 +0000 (16:18 -0700)]
mm/memory-failure.c: fix spinlock vs mutex order

We cannot take a mutex while holding a spinlock, so flip the order and
fix the locking documentation.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Andi Kleen <ak@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrivers/misc/lkdtm.c: fix race when crashpoint is hit multiple times before checking...
Josh Hunt [Mon, 27 Jun 2011 23:18:08 +0000 (16:18 -0700)]
drivers/misc/lkdtm.c: fix race when crashpoint is hit multiple times before checking count

We observed the crash point count going negative in cases where the
crash point is hit multiple times before the check of "count == 0" is
done.  Because of this we never call lkdtm_do_action().  This patch just
adds a spinlock to protect count.

Reported-by: Tapan Dhimant <tdhimant@akamai.com>
Signed-off-by: Josh Hunt <johunt@akamai.com>
Acked-by: Ankita Garg <ankita@in.ibm.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoinclude/linux/compat.h: declare compat_sys_sendmmsg()
Chris Metcalf [Mon, 27 Jun 2011 23:18:07 +0000 (16:18 -0700)]
include/linux/compat.h: declare compat_sys_sendmmsg()

This is required for tilegx to be able to use the compat unistd.h header
where compat_sys_sendmmsg() is now mentioned.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoromfs: fix romfs_get_unmapped_area() argument check
Bob Liu [Mon, 27 Jun 2011 23:18:06 +0000 (16:18 -0700)]
romfs: fix romfs_get_unmapped_area() argument check

romfs_get_unmapped_area() checks argument `len' without considering
PAGE_ALIGN which will cause do_mmap_pgoff() return -EINVAL error after
commit f67d9b1576c ("nommu: add page_align to mmap").

Fix the check by changing it in same way ramfs_nommu_get_unmapped_area()
was changed in ramfs/file-nommu.c.

Signed-off-by: Bob Liu <lliubbo@gmail.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Acked-by: Greg Ungerer <gerg@snapgear.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoum: add asm/percpu.h
Richard Weinberger [Mon, 27 Jun 2011 23:18:05 +0000 (16:18 -0700)]
um: add asm/percpu.h

To make SLUB work on UML we need this_cpu_cmpxchg from
asm-generic/percpu.h.

Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agodrivers/rtc/rtc-ds1307.c: add support for RTC device pt7c4338
Priyanka Jain [Mon, 27 Jun 2011 23:18:04 +0000 (16:18 -0700)]
drivers/rtc/rtc-ds1307.c: add support for RTC device pt7c4338

PT7C4338 chip is being manufactured by Pericom Technology Inc.  It is a
serial real-time clock which provides:

1) Low-power clock/calendar.
2) Programmable square-wave output.

It has 56 bytes of nonvolatile RAM.  Its register set is same as that of
rtc device: DS1307.

Signed-off-by: Priyanka Jain <Priyanka.Jain@freescale.com>
Acked-by: Timur Tabi <timur@freescale.com>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agotmpfs: add shmem_read_mapping_page_gfp
Hugh Dickins [Mon, 27 Jun 2011 23:18:04 +0000 (16:18 -0700)]
tmpfs: add shmem_read_mapping_page_gfp

Although it is used (by i915) on nothing but tmpfs, read_cache_page_gfp()
is unsuited to tmpfs, because it inserts a page into pagecache before
calling the filesystem's ->readpage: tmpfs may have pages in swapcache
which only it knows how to locate and switch to filecache.

At present tmpfs provides a ->readpage method, and copes with this by
copying pages; but soon we can simplify it by removing its ->readpage.
Provide shmem_read_mapping_page_gfp() now, ready for that transition,

Export shmem_read_mapping_page_gfp() and add it to list in shmem_fs.h,
with shmem_read_mapping_page() inline for the common mapping_gfp case.

(shmem_read_mapping_page_gfp or shmem_read_cache_page_gfp? Generally the
read_mapping_page functions use the mapping's ->readpage, and the
read_cache_page functions use the supplied filler, so I think
read_cache_page_gfp was slightly misnamed.)

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agotmpfs: take control of its truncate_range
Hugh Dickins [Mon, 27 Jun 2011 23:18:03 +0000 (16:18 -0700)]
tmpfs: take control of its truncate_range

2.6.35's new truncate convention gave tmpfs the opportunity to control
its file truncation, no longer enforced from outside by vmtruncate().
We shall want to build upon that, to handle pagecache and swap together.

Slightly redefine the ->truncate_range interface: let it now be called
between the unmap_mapping_range()s, with the filesystem responsible for
doing the truncate_inode_pages_range() from it - just as the filesystem
is nowadays responsible for doing that from its ->setattr.

Let's rename shmem_notify_change() to shmem_setattr().  Instead of
calling the generic truncate_setsize(), bring that code in so we can
call shmem_truncate_range() - which will later be updated to perform its
own variant of truncate_inode_pages_range().

Remove the punch_hole unmap_mapping_range() from shmem_truncate_range():
now that the COW's unmap_mapping_range() comes after ->truncate_range,
there is no need to call it a third time.

Export shmem_truncate_range() and add it to the list in shmem_fs.h, so
that i915_gem_object_truncate() can call it explicitly in future; get
this patch in first, then update drm/i915 once this is available (until
then, i915 will just be doing the truncate_inode_pages() twice).

Though introduced five years ago, no other filesystem is implementing
->truncate_range, and its only other user is madvise(,,MADV_REMOVE): we
expect to convert it to fallocate(,FALLOC_FL_PUNCH_HOLE,,) shortly,
whereupon ->truncate_range can be removed from inode_operations -
shmem_truncate_range() will help i915 across that transition too.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomm: move shmem prototypes to shmem_fs.h
Hugh Dickins [Mon, 27 Jun 2011 23:18:02 +0000 (16:18 -0700)]
mm: move shmem prototypes to shmem_fs.h

Before adding any more global entry points into shmem.c, gather such
prototypes into shmem_fs.h.  Remove mm's own declarations from swap.h,
but for now leave the ones in mm.h: because shmem_file_setup() and
shmem_zero_setup() are called from various places, and we should not
force other subsystems to update immediately.

Signed-off-by: Hugh Dickins <hughd@google.com>
Cc: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agomm: move vmtruncate_range to truncate.c
Hugh Dickins [Mon, 27 Jun 2011 23:18:01 +0000 (16:18 -0700)]
mm: move vmtruncate_range to truncate.c

You would expect to find vmtruncate_range() next to vmtruncate() in
mm/truncate.c: move it there.

Signed-off-by: Hugh Dickins <hughd@google.com>
Acked-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoFix some kernel-doc warnings
Vitaliy Ivanov [Mon, 27 Jun 2011 16:07:08 +0000 (19:07 +0300)]
Fix some kernel-doc warnings

Fix 'make htmldocs' warnings:

  Warning(/include/linux/hrtimer.h:153): No description found for parameter 'clockid'
  Warning(/include/linux/device.h:604): Excess struct/union/enum/typedef member 'of_match' description in 'device'
  Warning(/include/net/sock.h:349): Excess struct/union/enum/typedef member 'sk_rmem_alloc' description in 'sock'

Signed-off-by: Vitaliy Ivanov <vitalivanov@gmail.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc
Linus Torvalds [Mon, 27 Jun 2011 21:55:43 +0000 (14:55 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/cjb/mmc

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
  mmc: queue: bring discard_granularity/alignment into line with SCSI
  mmc: queue: append partition subname to queue thread name
  mmc: core: make erase timeout calculation allow for gated clock
  mmc: block: switch card to User Data Area when removing the block driver
  mmc: sdio: reset card during power_restore
  mmc: cb710: fix #ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS
  mmc: sdhi: DMA slave ID 0 is invalid
  mmc: tmio: fix regression in TMIO_MMC_WRPROTECT_DISABLE handling
  mmc: omap_hsmmc: use original sg_len for dma_unmap_sg
  mmc: omap_hsmmc: fix ocr mask usage
  mmc: sdio: fix runtime PM path during driver removal
  mmc: Add PCI fixup quirks for Ricoh 1180:e823 reader
  mmc: sdhi: fix module unloading
  mmc: of_mmc_spi: add NO_IRQ define to of_mmc_spi.c
  mmc: vub300: fix null dereferences in error handling

12 years agoFix node_start/end_pfn() definition for mm/page_cgroup.c
KAMEZAWA Hiroyuki [Thu, 16 Jun 2011 08:28:07 +0000 (17:28 +0900)]
Fix node_start/end_pfn() definition for mm/page_cgroup.c

commit 21a3c96 uses node_start/end_pfn(nid) for detection start/end
of nodes. But, it's not defined in linux/mmzone.h but defined in
/arch/???/include/mmzone.h which is included only under
CONFIG_NEED_MULTIPLE_NODES=y.

Then, we see
  mm/page_cgroup.c: In function 'page_cgroup_init':
  mm/page_cgroup.c:308: error: implicit declaration of function 'node_start_pfn'
  mm/page_cgroup.c:309: error: implicit declaration of function 'node_end_pfn'

So, fixiing page_cgroup.c is an idea...

But node_start_pfn()/node_end_pfn() is a very generic macro and
should be implemented in the same manner for all archs.
(m32r has different implementation...)

This patch removes definitions of node_start/end_pfn() in each archs
and defines a unified one in linux/mmzone.h. It's not under
CONFIG_NEED_MULTIPLE_NODES, now.

A result of macro expansion is here (mm/page_cgroup.c)

for !NUMA
 start_pfn = ((&contig_page_data)->node_start_pfn);
  end_pfn = ({ pg_data_t *__pgdat = (&contig_page_data); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;});

for NUMA (x86-64)
  start_pfn = ((node_data[nid])->node_start_pfn);
  end_pfn = ({ pg_data_t *__pgdat = (node_data[nid]); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;});

Changelog:
 - fixed to avoid using "nid" twice in node_end_pfn() macro.

Reported-and-acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs...
Linus Torvalds [Mon, 27 Jun 2011 20:32:14 +0000 (13:32 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/mason/btrfs-unstable

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
  btrfs: fix inconsonant inode information
  Btrfs: make sure to update total_bitmaps when freeing cache V3
  Btrfs: fix type mismatch in find_free_extent()
  Btrfs: make sure to record the transid in new inodes

12 years agoMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs
Linus Torvalds [Mon, 27 Jun 2011 16:01:29 +0000 (09:01 -0700)]
Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfs

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: prevent bogus assert when trying to remove non-existent attribute
  xfs: clear XFS_IDIRTY_RELEASE on truncate down
  xfs: reset inode per-lifetime state when recycling it

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
Linus Torvalds [Mon, 27 Jun 2011 16:00:50 +0000 (09:00 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jikos/hid

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
  HID: hid-multitouch: add support for a new Lumio dual-touch panel
  HID: hid-multitouch: correct VID for Stantum panels
  HID: hid-multitouch: ensure slots are initialized

12 years agoMerge branch 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm
Linus Torvalds [Mon, 27 Jun 2011 15:58:23 +0000 (08:58 -0700)]
Merge branch 'fixes' of /home/rmk/linux-2.6-arm

* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
  ARM: pm: ensure ARMv7 CPUs save and restore the TLS register
  ARM: pm: proc-v7: fix missing struct processor pointers for suspend code
  ARM: 6969/1: plat-iop: fix build error
  ARM: 6961/1: zImage: Add build-time check for correctly-sized proc_type entries
  ARM: SMP: wait for CPU to be marked active
  ARM: 6963/1: Thumb-2: Relax relocation requirements for non-function symbols
  ARM: 6962/1: mach-h720x: fix build error
  ARM: 6959/1: SMP build fix for entry-macro-multi.S

12 years agoMerge branch 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6
Linus Torvalds [Mon, 27 Jun 2011 15:57:46 +0000 (08:57 -0700)]
Merge branch 'for-linus' of git://git390.marist.edu/linux-2.6

* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
  [S390] allow setting of upper 32 bit in smp_ctl_set_bit
  [S390] hwsampler: Set a sane default sampling rate
  [S390] s390: enforce HW limits for the initial sampling rate
  [S390] kvm-s390: fix kconfig dependencies

12 years agobtrfs: fix inconsonant inode information
Miao Xie [Thu, 23 Jun 2011 07:27:13 +0000 (07:27 +0000)]
btrfs: fix inconsonant inode information

When iputting the inode, We may leave the delayed nodes if they have some
delayed items that have not been dealt with. So when the inode is read again,
we must look up the relative delayed node, and use the information in it to
initialize the inode. Or we will get inconsonant inode information, it may
cause that the same directory index number is allocated again, and hit the
following oops:

[ 5447.554187] err add delayed dir index item(name: pglog_0.965_0) into the
insertion tree of the delayed node(root id: 262, inode id: 258, errno: -17)
[ 5447.569766] ------------[ cut here ]------------
[ 5447.575361] kernel BUG at fs/btrfs/delayed-inode.c:1301!
[SNIP]
[ 5447.790721] Call Trace:
[ 5447.793191]  [<ffffffffa0641c4e>] btrfs_insert_dir_item+0x189/0x1bb [btrfs]
[ 5447.800156]  [<ffffffffa0651a45>] btrfs_add_link+0x12b/0x191 [btrfs]
[ 5447.806517]  [<ffffffffa0651adc>] btrfs_add_nondir+0x31/0x58 [btrfs]
[ 5447.812876]  [<ffffffffa0651d6a>] btrfs_create+0xf9/0x197 [btrfs]
[ 5447.818961]  [<ffffffff8111f840>] vfs_create+0x72/0x92
[ 5447.824090]  [<ffffffff8111fa8c>] do_last+0x22c/0x40b
[ 5447.829133]  [<ffffffff8112076a>] path_openat+0xc0/0x2ef
[ 5447.834438]  [<ffffffff810c58e2>] ? __perf_event_task_sched_out+0x24/0x44
[ 5447.841216]  [<ffffffff8103ecdd>] ? perf_event_task_sched_out+0x59/0x67
[ 5447.847846]  [<ffffffff81121a79>] do_filp_open+0x3d/0x87
[ 5447.853156]  [<ffffffff811e126c>] ? strncpy_from_user+0x43/0x4d
[ 5447.859072]  [<ffffffff8111f1f5>] ? getname_flags+0x2e/0x80
[ 5447.864636]  [<ffffffff8111f179>] ? do_getname+0x14b/0x173
[ 5447.870112]  [<ffffffff8111f1b7>] ? audit_getname+0x16/0x26
[ 5447.875682]  [<ffffffff8112b1ab>] ? spin_lock+0xe/0x10
[ 5447.880882]  [<ffffffff81112d39>] do_sys_open+0x69/0xae
[ 5447.886153]  [<ffffffff81112db1>] sys_open+0x20/0x22
[ 5447.891114]  [<ffffffff813b9aab>] system_call_fastpath+0x16/0x1b

Fix it by reusing the old delayed node.

Reported-by: Jim Schutt <jaschut@sandia.gov>
Signed-off-by: Miao Xie <miaox@cn.fujitsu.com>
Tested-by: Jim Schutt <jaschut@sandia.gov>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Mon, 27 Jun 2011 02:40:31 +0000 (19:40 -0700)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: mark CONFIG_CIFS_NFSD_EXPORT as BROKEN
  cifs: free blkcipher in smbhash

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Mon, 27 Jun 2011 02:39:22 +0000 (19:39 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  cifs: propagate errors from cifs_get_root() to mount(2)
  cifs: tidy cifs_do_mount() up a bit
  cifs: more breakage on mount failures
  cifs: close sget() races
  cifs: pull freeing mountdata/dropping nls/freeing cifs_sb into cifs_umount()
  cifs: move cifs_umount() call into ->kill_sb()
  cifs: pull cifs_mount() call up
  sanitize cifs_umount() prototype
  cifs: initialize ->tlink_tree in cifs_setup_cifs_sb()
  cifs: allocate mountdata earlier
  cifs: leak on mount if we share superblock
  cifs: don't pass superblock to cifs_mount()
  cifs: don't leak nls on mount failure
  cifs: double free on mount failure
  take bdi setup/destruction into cifs_mount/cifs_umount

Acked-by: Steve French <smfrench@gmail.com>
12 years agommc: queue: bring discard_granularity/alignment into line with SCSI
Adrian Hunter [Thu, 23 Jun 2011 10:40:29 +0000 (13:40 +0300)]
mmc: queue: bring discard_granularity/alignment into line with SCSI

SCSI defines discard alignment as the offset to the first
optimal discard.  In the case of SD/MMC, that is always zero
which is the default.

SCSI defines discard granularity as a hint of a optimal
discard size.  That is much better expressed by the MMC
"preferred erase size" (pref_erase) field.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: queue: append partition subname to queue thread name
Adrian Hunter [Thu, 23 Jun 2011 10:40:28 +0000 (13:40 +0300)]
mmc: queue: append partition subname to queue thread name

For example, an eMMC with 2 boot partitions will have 3 threads.
The names change from:

   40 ?        00:00:00 mmcqd/0
   41 ?        00:00:00 mmcqd/0
   42 ?        00:00:00 mmcqd/0

to:

   40 ?        00:00:00 mmcqd/0
   41 ?        00:00:00 mmcqd/0boot0
   42 ?        00:00:00 mmcqd/0boot1

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: core: make erase timeout calculation allow for gated clock
Adrian Hunter [Thu, 23 Jun 2011 10:40:27 +0000 (13:40 +0300)]
mmc: core: make erase timeout calculation allow for gated clock

The erase timeout calculation may depend on clock rate
which is zero if the clock is gated, so use
mmc_host_clk_rate() which allows for that case.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: block: switch card to User Data Area when removing the block driver
Adrian Hunter [Thu, 23 Jun 2011 10:40:26 +0000 (13:40 +0300)]
mmc: block: switch card to User Data Area when removing the block driver

The MMC block driver and other drivers (e.g. mmc-test) will expect
the card to be switched to the User Data Area eMMC partition when
they start.  Hence the MMC block driver should ensure it is that
way when it is removed.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andrei Warkentin <andreiw@motorola.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdio: reset card during power_restore
Daniel Drake [Sat, 25 Jun 2011 18:20:11 +0000 (19:20 +0100)]
mmc: sdio: reset card during power_restore

mmc_sdio_power_restore() skips some steps that are performed in other
power-related codepaths which are necessary to fully reset the card.
Without this, runtime PM fails for SD8686 SDIO wifi on OLPC XO-1.5.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: cb710: fix #ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS
James Hogan [Tue, 21 Jun 2011 09:55:34 +0000 (10:55 +0100)]
mmc: cb710: fix #ifdef HAVE_EFFICIENT_UNALIGNED_ACCESS

HAVE_EFFICIENT_UNALIGNED_ACCESS is a config option, therefore it needs
the CONFIG_ before it when used by the preprocessor.

Signed-off-by: James Hogan <james@albanarts.com>
Acked-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdhi: DMA slave ID 0 is invalid
Guennadi Liakhovetski [Tue, 24 May 2011 10:24:07 +0000 (12:24 +0200)]
mmc: sdhi: DMA slave ID 0 is invalid

Don't try to allocate DMA resources if the platform didn't specify
positive DMA slave IDs.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: tmio: fix regression in TMIO_MMC_WRPROTECT_DISABLE handling
Guennadi Liakhovetski [Mon, 20 Jun 2011 14:51:10 +0000 (16:51 +0200)]
mmc: tmio: fix regression in TMIO_MMC_WRPROTECT_DISABLE handling

Commit b6147490e6aac82 ("mmc: tmio: split core functionality, DMA and
MFD glue") broke handling of the TMIO_MMC_WRPROTECT_DISABLE flag by
the tmio-mmc driver. This patch restores the original behaviour.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: <stable@kernel.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: use original sg_len for dma_unmap_sg
Per Forlin [Fri, 17 Jun 2011 18:14:21 +0000 (20:14 +0200)]
mmc: omap_hsmmc: use original sg_len for dma_unmap_sg

Don't use the returned sg_len from dma_map_sg() as inparameter
to dma_unmap_sg(). Use the original sg_len for both dma_map_sg
and dma_unmap_sg according to the documentation in DMA-API.txt.

Signed-off-by: Per Forlin <per.forlin@linaro.org>
Reviewed-by: Venkatraman S <svenkatr@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: omap_hsmmc: fix ocr mask usage
Anand Gadiyar [Tue, 14 Jun 2011 10:29:59 +0000 (15:59 +0530)]
mmc: omap_hsmmc: fix ocr mask usage

The OMAP HSMMC driver uses an ocr_mask to determine the list of voltages
supported by the card. It populates this mask based on the list of
voltages supported by the regulator that supplies the voltage.

Commit 64be97822b (omap4 hsmmc: Update ocr mask for MMC2 for regulator
to use) passed a fixed ocr_mask from the OMAP4 SDP board file to limit
the voltage to 2.9-3.0 Volts, and updated the driver to use this mask
if provided, instead of using the regulator's supported voltages.

However the commit is buggy - the ocr_mask is overridden by the
regulator's capabilities anyway. Fix this.

(The bug shows up when a system-wide suspend is attempted on the OMAP4
SDP/Blaze platforms. The eMMC card comes up at 3V, but drops to 1.65V
after the system resumes).

Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Acked-by: Balaji T K <balajitk@ti.com>
Acked-by: Venkatraman S <svenkatr@ti.com>
Tested-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agommc: sdio: fix runtime PM path during driver removal
Ohad Ben-Cohen [Thu, 9 Jun 2011 23:40:27 +0000 (23:40 +0000)]
mmc: sdio: fix runtime PM path during driver removal

After commit e1866b3 "PM / Runtime: Rework runtime PM handling
during driver removal" was introduced, the driver core stopped
incrementing the runtime PM usage counter of the device during
the invocation of the ->remove() callback.

This indirectly broke SDIO's runtime PM path during driver removal,
because no one calls _put_sync() anymore after ->remove() completes.

This means that the power of runtime-PM-managed SDIO cards is kept
high after their driver is removed (even if it was powered down
beforehand).

Fix that by directly calling _put_sync() when the last usage
counter is downref'ed by the SDIO bus.

Reported-and-tested-by: Daniel Drake <dsd@laptop.org>
Signed-off-by: Ohad Ben-Cohen <ohad@wizery.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
12 years agoMerge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6
Steve French [Sat, 25 Jun 2011 19:22:28 +0000 (19:22 +0000)]
Merge branch 'master' of /linux/kernel/git/torvalds/linux-2.6

12 years agox86: Add support for cmpxchg_double
Christoph Lameter [Wed, 1 Jun 2011 17:25:47 +0000 (12:25 -0500)]
x86: Add support for cmpxchg_double

A simple implementation that only supports the word size and does not
have a fallback mode (would require a spinlock).

Add 32 and 64 bit support for cmpxchg_double. cmpxchg double uses
the cmpxchg8b or cmpxchg16b instruction on x86 processors to compare
and swap 2 machine words. This allows lockless algorithms to move more
context information through critical sections.

Set a flag CONFIG_CMPXCHG_DOUBLE to signal that support for double word
cmpxchg detection has been build into the kernel. Note that each subsystem
using cmpxchg_double has to implement a fall back mechanism as long as
we offer support for processors that do not implement cmpxchg_double.

Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Christoph Lameter <cl@linux.com>
Link: http://lkml.kernel.org/r/20110601172614.173427964@linux.com
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
12 years agoMerge branch 'timer-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 25 Jun 2011 14:23:59 +0000 (07:23 -0700)]
Merge branch 'timer-fixes-for-linus' of git://git./linux/kernel/git/tip/linux-2.6-tip

* 'timer-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  rtc: vt8500: Fix build error & cleanup rtc_class_ops->update_irq_enable()
  alarmtimers: Return -ENOTSUPP if no RTC device is present
  alarmtimers: Handle late rtc module loading

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
Linus Torvalds [Sat, 25 Jun 2011 14:23:27 +0000 (07:23 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/tiwai/sound-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
  ALSA: Remove unneeded version.h includes from sound/
  ASoC: pxa-ssp: Correct check for stream presence
  ASoC: imx: add missing module informations
  ASoC: imx: Remove unused Kconfig SND_MXC_SOC_SSI entry
  ALSA: HDA: Pinfix quirk for HP Z200 Workstation
  ALSA: VIA HDA: Create a master amplifier control for VT1718S.
  ALSA: VIA HDA: Mute/unmute mixer conncted to Headphone for VT1718S.
  ALSA: VIA HDA: Modify initial verbs list for VT1718S.
  ALSA: hda - Remove ALC268 model override for CPR2000
  ALSA: HDA: Remove quirk for an HP device
  ASoC: Remove unused and about to be broken SND_SOC_CUSTOM I/O bus

12 years agoBtrfs: make sure to update total_bitmaps when freeing cache V3
Josef Bacik [Fri, 24 Jun 2011 16:02:51 +0000 (16:02 +0000)]
Btrfs: make sure to update total_bitmaps when freeing cache V3

A user reported this bug again where we have more bitmaps than we are supposed
to.  This is because we failed to load the free space cache, but don't update
the ctl->total_bitmaps counter when we remove entries from the tree.  This patch
fixes this problem and we should be good to go again.  Thanks,

Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoBtrfs: fix type mismatch in find_free_extent()
Ilya Dryomov [Sat, 18 Jun 2011 20:26:38 +0000 (20:26 +0000)]
Btrfs: fix type mismatch in find_free_extent()

data parameter should be u64 because a full-sized chunk flags field is
passed instead of 0/1 for distinguishing data from metadata.  All
underlying functions expect u64.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agoMerge branch 'fortglx/3.0/tip/timers/rtc' of git://git.linaro.org/people/jstultz...
Thomas Gleixner [Sat, 25 Jun 2011 08:30:00 +0000 (10:30 +0200)]
Merge branch 'fortglx/3.0/tip/timers/rtc' of git://git.linaro.org/people/jstultz/linux into timers/urgent

  * rtc: vt8500: Fix build error & cleanup rtc_class_ops->update_irq_enable()

12 years agoMerge branch 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keith...
Linus Torvalds [Sat, 25 Jun 2011 05:01:40 +0000 (22:01 -0700)]
Merge branch 'drm-intel-fixes' of git://git./linux/kernel/git/keithp/linux-2.6

* 'drm-intel-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/keithp/linux-2.6:
  drm/i915: save/resume forcewake lock fixes
  Revert "drm/i915: Kill GTT mappings when moving from GTT domain"
  drm/i915: Apply HWSTAM workaround for BSD ring on SandyBridge
  drm/i915: Call intel_enable_plane from i9xx_crtc_mode_set (again)

12 years agocifs: propagate errors from cifs_get_root() to mount(2)
Al Viro [Fri, 17 Jun 2011 14:02:59 +0000 (10:02 -0400)]
cifs: propagate errors from cifs_get_root() to mount(2)

... instead of just failing with -EINVAL

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: tidy cifs_do_mount() up a bit
Al Viro [Fri, 17 Jun 2011 13:56:55 +0000 (09:56 -0400)]
cifs: tidy cifs_do_mount() up a bit

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: more breakage on mount failures
Al Viro [Fri, 17 Jun 2011 13:50:44 +0000 (09:50 -0400)]
cifs: more breakage on mount failures

if cifs_get_root() fails, we end up with ->mount() returning NULL,
which is not what callers expect.  Moreover, in case of superblock
reuse we end up leaking a superblock reference...

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: close sget() races
Al Viro [Fri, 17 Jun 2011 13:47:23 +0000 (09:47 -0400)]
cifs: close sget() races

have ->s_fs_info set by the set() callback passed to sget()

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: pull freeing mountdata/dropping nls/freeing cifs_sb into cifs_umount()
Al Viro [Fri, 17 Jun 2011 13:42:43 +0000 (09:42 -0400)]
cifs: pull freeing mountdata/dropping nls/freeing cifs_sb into cifs_umount()

all callers of cifs_umount() proceed to do the same thing; pull it into
cifs_umount() itself.

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: move cifs_umount() call into ->kill_sb()
Al Viro [Fri, 17 Jun 2011 13:32:10 +0000 (09:32 -0400)]
cifs: move cifs_umount() call into ->kill_sb()

instead of calling it manually in case if cifs_read_super() fails
to set ->s_root, just call it from ->kill_sb().  cifs_put_super()
is gone now *and* we have cifs_sb shutdown and destruction done
after the superblock is gone from ->s_instances.

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: pull cifs_mount() call up
Al Viro [Fri, 17 Jun 2011 13:29:57 +0000 (09:29 -0400)]
cifs: pull cifs_mount() call up

... to the point prior to sget().  Now we have cifs_sb set up early
enough.

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agosanitize cifs_umount() prototype
Al Viro [Fri, 17 Jun 2011 13:27:16 +0000 (09:27 -0400)]
sanitize cifs_umount() prototype

a) superblock argument is unused
b) it always returns 0

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: initialize ->tlink_tree in cifs_setup_cifs_sb()
Al Viro [Fri, 17 Jun 2011 13:20:04 +0000 (09:20 -0400)]
cifs: initialize ->tlink_tree in cifs_setup_cifs_sb()

no need to wait until cifs_read_super() and we need it done
by the time cifs_mount() will be called.

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: allocate mountdata earlier
Al Viro [Fri, 17 Jun 2011 13:17:28 +0000 (09:17 -0400)]
cifs: allocate mountdata earlier

pull mountdata allocation up, so that it won't stand in the way when
we lift cifs_mount() to location before sget().

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: leak on mount if we share superblock
Al Viro [Fri, 17 Jun 2011 13:14:27 +0000 (09:14 -0400)]
cifs: leak on mount if we share superblock

cifs_sb and nls end up leaked...

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: don't pass superblock to cifs_mount()
Al Viro [Fri, 17 Jun 2011 13:05:48 +0000 (09:05 -0400)]
cifs: don't pass superblock to cifs_mount()

To close sget() races we'll need to be able to set cifs_sb up before
we get the superblock, so we'll want to be able to do cifs_mount()
earlier.  Fortunately, it's easy to do - setting ->s_maxbytes can
be done in cifs_read_super(), ditto for ->s_time_gran and as for
putting MS_POSIXACL into ->s_flags, we can mirror it in ->mnt_cifs_flags
until cifs_read_super() is called.  Kill unused 'devname' argument,
while we are at it...

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: don't leak nls on mount failure
Al Viro [Fri, 17 Jun 2011 12:49:12 +0000 (08:49 -0400)]
cifs: don't leak nls on mount failure

if cifs_sb allocation fails, we still need to drop nls we'd stashed
into volume_info - the one we would've copied to cifs_sb if we could
allocate the latter.

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: double free on mount failure
Al Viro [Fri, 17 Jun 2011 12:34:57 +0000 (08:34 -0400)]
cifs: double free on mount failure

if we get to out_super with ->s_root already set (e.g. with
cifs_get_root() failure), we'll end up with cifs_put_super()
called and ->mountdata freed twice.  We'll also get cifs_sb
freed twice and cifs_sb->local_nls dropped twice.  The problem
is, we can get to out_super both with and without ->s_root,
which makes ->put_super() a bad place for such work.

Switch to ->kill_sb(), have all that work done there after
kill_anon_super().  Unlike ->put_super(), ->kill_sb() is
called by deactivate_locked_super() whether we have ->s_root
or not.

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agotake bdi setup/destruction into cifs_mount/cifs_umount
Al Viro [Fri, 17 Jun 2011 12:24:42 +0000 (08:24 -0400)]
take bdi setup/destruction into cifs_mount/cifs_umount

Acked-by: Pavel Shilovsky <piastryyy@gmail.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
12 years agocifs: mark CONFIG_CIFS_NFSD_EXPORT as BROKEN
Jeff Layton [Tue, 21 Jun 2011 11:18:26 +0000 (07:18 -0400)]
cifs: mark CONFIG_CIFS_NFSD_EXPORT as BROKEN

This does not work properly with CIFS as current servers do not
enable support for the FILE_OPEN_BY_FILE_ID on SMB NTCreateX
and not all NFS clients handle ESTALE.

For now, it just plain doesn't work. Mark it BROKEN to discourage
distros from enabling it.

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
12 years agoBtrfs: make sure to record the transid in new inodes
Chris Mason [Fri, 24 Jun 2011 17:13:29 +0000 (13:13 -0400)]
Btrfs: make sure to record the transid in new inodes

When we create a new inode, we aren't filling in the
field that records the transaction that last changed this
inode.

If we then go to fsync that inode, it will be skipped because the field
isn't filled in.

Signed-off-by: Chris Mason <chris.mason@oracle.com>
12 years agocifs: free blkcipher in smbhash
Jeff Layton [Mon, 20 Jun 2011 18:33:16 +0000 (14:33 -0400)]
cifs: free blkcipher in smbhash

This is currently leaked in the rc == 0 case.

Reported-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Reviewed-by: Shirish Pargaonkar <shirishpargaonkar@gmail.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
12 years agoMerge branch 'for-linus' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 24 Jun 2011 15:42:35 +0000 (08:42 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: add REQ_SECURE to REQ_COMMON_MASK
  block: use the passed in @bdev when claiming if partno is zero
  block: Add __attribute__((format(printf...) and fix fallout
  block: make disk_block_events() properly wait for work cancellation
  block: remove non-syncing __disk_block_events() and fold it into disk_block_events()
  block: don't use non-syncing event blocking in disk_check_events()
  cfq-iosched: fix locking around ioc->ioc_data assignment

12 years agoMerge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
Linus Torvalds [Fri, 24 Jun 2011 15:41:36 +0000 (08:41 -0700)]
Merge branch 'upstream-linus' of git://git./linux/kernel/git/jgarzik/libata-dev

* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev:
  pata_marvell: Add support for 88SE91A0, 88SE91A4
  libata/sas: only set FROZEN flag if new EH is supported
  libata: apply NOSETXFER horkage to the affected Pioneer drives regardless of firmware revision
  drivers/ata/sata_dwc_460ex: Fix typo 'corrresponding'

12 years agoMerge branch 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Fri, 24 Jun 2011 15:39:43 +0000 (08:39 -0700)]
Merge branch 'drm-fixes' of git://git./linux/kernel/git/airlied/drm-2.6

* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
  drm/radeon/kms: handle special cases for vddc
  drm/radeon/kms: fix num_banks tiling config for fusion

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/scsi...
Linus Torvalds [Fri, 24 Jun 2011 15:38:51 +0000 (08:38 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/nab/scsi-post-merge-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/scsi-post-merge-2.6:
  tcm_fc: Fix conversion spec warning
  tcm_fc: Fix possible lock to unlock type deadlock
  tcm_fc: Fix ft_send_tm LUN lookup OOPs
  target: Fix incorrect strlen() NULL terminator checks
  target: Drop bogus ERR_PTR usage in target_fabric_configfs_init
  target: Fix ERR_PTR dereferencing bugs
  target: Convert transport_deregister_session_configfs nacl_sess_lock to save irq state
  target: Fix transport_get_lun_for_tmr failure cases
  [SCSI] target: Convert TASK_ATTR to scsi_tcq.h definitions
  [SCSI] target: Convert REPORT_LUNs to use int_to_scsilun
  [SCSI] target: Fix task->task_execute_queue=1 clear bug + LUN_RESET OOPs
  [SCSI] target: Fix bug with task_sg chained transport_free_dev_tasks release
  [SCSI] target: Fix interrupt context bug with stats_lock and core_tmr_alloc_req
  [SCSI] target: Fix multi task->task_sg[] chaining logic bug

12 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...
Linus Torvalds [Fri, 24 Jun 2011 15:36:16 +0000 (08:36 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/jbarnes/pci-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6:
  x86/PCI/ACPI: fix type mismatch
  PCI: fix new kernel-doc warning
  PCI: Fix warning in drivers/pci/probe.c on sparc64

12 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6
Linus Torvalds [Fri, 24 Jun 2011 15:35:04 +0000 (08:35 -0700)]
Merge git://git./linux/kernel/git/sfrench/cifs-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
  cifs: fix wsize negotiation to respect max buffer size and active signing (try #4)
  CIFS: Fix problem with 3.0-rc1 null user mount failure

12 years agoRemove unneeded version.h includes from fs/
Jesper Juhl [Thu, 23 Jun 2011 21:59:32 +0000 (23:59 +0200)]
Remove unneeded version.h includes from fs/

It was pointed out by 'make versioncheck' that some includes of
linux/version.h were not needed in fs/ (fs/btrfs/ctree.h and
fs/omfs/file.c).

This patch removes them.

Signed-off-by: Jesper Juhl <jj@chaosbits.net>
Acked-by: Bob Copeland <me@bobcopeland.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
12 years agoHID: hid-multitouch: add support for a new Lumio dual-touch panel
Benjamin Tissoires [Tue, 21 Jun 2011 13:01:55 +0000 (15:01 +0200)]
HID: hid-multitouch: add support for a new Lumio dual-touch panel

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@enac.fr>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>