Merge tag 'v3.12'

Linux 3.12

Merge tag 'v3.12-rc4' into next

Merge with mainline to bring in changes to input subsystem that were
committed through other trees.

Merge branch 'perf/urgent' into perf/core

Pick up the latest fixes before applying new patches.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge tag 'v3.12-rc3' into irq/core

Merge Linux v3.12-rc3, to refresh the tree from a v3.11 base to a v3.12 base.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth

Conflicts:
net/bluetooth/hci_core.c

Merge remote-tracking branch 'tip/timers/core' into fordlezcano/3.13/sched-clock64-conversion

Update to tip/timers/core and resolve minor conflict.

Conflicts:
drivers/clocksource/samsung_pwm_timer

Merge remote-tracking branch 'tip/timers/core' into fordlezcano/3.13/sched-clock64-conversion

Update to tip/timers/core and resolve minor conflict.

Conflicts:
drivers/clocksource/samsung_pwm_timer.c

Signed-off-by: John Stultz <john.stultz@linaro.org>

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Merge tag 'v3.12-rc2' into patchwork

Linux 3.12-rc2

* tag 'v3.12-rc2': (10774 commits)
Linux 3.12-rc2
cfq: explicitly use 64bit divide operation for 64bit arguments
block: Add nr_bios to bloc

Merge tag 'v3.12-rc2' into patchwork

Linux 3.12-rc2

* tag 'v3.12-rc2': (10774 commits)
Linux 3.12-rc2
cfq: explicitly use 64bit divide operation for 64bit arguments
block: Add nr_bios to block_rq_remap tracepoint
Btrfs: create the uuid tree on remount rw
btrfs: change extent-same to copy entire argument struct
Btrfs: dir_inode_operations should use btrfs_update_time also
btrfs: Add btrfs: prefix to kernel log output
btrfs: refuse to remount read-write after abort
Btrfs: btrfs_ioctl_default_subvol: Revert back to toplevel subvolume when arg is 0
Btrfs: don't leak transaction in btrfs_sync_file()
Btrfs: add the missing mutex unlock in write_all_supers()
Btrfs: iput inode on allocation failure
Btrfs: remove space_info->reservation_progress
Btrfs: kill delay_iput arg to the wait_ordered functions
Btrfs: fix worst case calculator for space usage
Revert "Btrfs: rework the overcommit logic to be based on the total size"
Btrfs: improve replacing nocow extents
Btrfs: drop dir i_size when adding new names on replay
Btrfs: replay dir_index items before other items
Btrfs: check roots last log commit when checking if an inode has been logged
...

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Merge tag 'v3.12-rc2' into drm-intel-next

Backmerge Linux 3.12-rc2 to prep for a bunch of -next patches:
- Header cleanup in intel_drv.h, both changed in -fixes and my current
-next pile.
- Cursor

Merge tag 'v3.12-rc2' into drm-intel-next

Backmerge Linux 3.12-rc2 to prep for a bunch of -next patches:
- Header cleanup in intel_drv.h, both changed in -fixes and my current
-next pile.
- Cursor handling cleanup for -next which depends upon the cursor
handling fix merged into -rc2.

All just trivial conflicts of the "changed adjacent lines" type:
drivers/gpu/drm/i915/i915_gem.c
drivers/gpu/drm/i915/intel_display.c
drivers/gpu/drm/i915/intel_drv.h

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

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Merge branch 'sched/urgent' into sched/core

Merge in the latest fixes before applying a dependent patch.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

Merge branch 'for-linus' into for-next

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs pile 1 from Al Viro:
"Unfortunately, this merge window it'll have a be a lot of small piles -
my fault,

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs pile 1 from Al Viro:
"Unfortunately, this merge window it'll have a be a lot of small piles -
my fault, actually, for not keeping #for-next in anything that would
resemble a sane shape ;-/

This pile: assorted fixes (the first 3 are -stable fodder, IMO) and
cleanups + %pd/%pD formats (dentry/file pathname, up to 4 last
components) + several long-standing patches from various folks.

There definitely will be a lot more (starting with Miklos'
check_submount_and_drop() series)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (26 commits)
direct-io: Handle O_(D)SYNC AIO
direct-io: Implement generic deferred AIO completions
add formats for dentry/file pathnames
kvm eventfd: switch to fdget
powerpc kvm: use fdget
switch fchmod() to fdget
switch epoll_ctl() to fdget
switch copy_module_from_fd() to fdget
git simplify nilfs check for busy subtree
ibmasmfs: don't bother passing superblock when not needed
don't pass superblock to hypfs_{mkdir,create*}
don't pass superblock to hypfs_diag_create_files
don't pass superblock to hypfs_vm_create_files()
oprofile: get rid of pointless forward declarations of struct super_block
oprofilefs_create_...() do not need superblock argument
oprofilefs_mkdir() doesn't need superblock argument
don't bother with passing superblock to oprofile_create_stats_files()
oprofile: don't bother with passing superblock to ->create_files()
don't bother passing sb to oprofile_create_files()
coh901318: don't open-code simple_read_from_buffer()
...

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ibmasmfs: don't bother passing superblock when not needed

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Merge branch 'master' into for-next

Merge with 49717cb ("kthread: Document ways of reducing OS jitter due
to per-CPU kthreads") to be able to apply fixup patch on top of it.

Signed-off-by: Jiri Kos

Merge branch 'master' into for-next

Merge with 49717cb ("kthread: Document ways of reducing OS jitter due
to per-CPU kthreads") to be able to apply fixup patch on top of it.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>

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Merge commit '8700c95adb03' into timers/nohz

The full dynticks tree needs the latest RCU and sched
upstream updates in order to fix some dependencies.

Merge a common upstream merge point that has t

Merge commit '8700c95adb03' into timers/nohz

The full dynticks tree needs the latest RCU and sched
upstream updates in order to fix some dependencies.

Merge a common upstream merge point that has these
updates.

Conflicts:
include/linux/perf_event.h
kernel/rcutree.h
kernel/rcutree_plugin.h

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>

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Merge branch 'next' into for-linus

Prepare first set of updates for 3.10 merge window.

Merge branch 'mcpm' of git://git.linaro.org/people/nico/linux into devel-stable

Merge remote-tracking branch 'efi/chainsaw' into x86/efi

Resolved Conflicts:
drivers/firmware/efivars.c
fs/efivarsfs/file.c

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Merge tag 'v3.9-rc7' into regmap-cache

Linux 3.9-rc7

Merge remote-tracking branch 'arm-soc/clksrc/cleanup' into sunxi/core-for-3.10

Merge commit 'v3.9-rc5' into next/clk-exynos

Conflicts:
arch/arm/boot/dts/exynos4.dtsi
arch/arm/boot/dts/exynos5440.dtsi

Merge tag 'v3.9-rc5' into devel

Linux 3.9-rc5

Conflicts:
drivers/pinctrl/pinconf.c

Merge branch 'for-linus' into for-next

Back-merge for cleaning up usb-audio code the recent commit modified,
and further UAC2 autoclock patches.

Merge tag 'asoc-fix-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.9

A few more fixes here and there, including quite a few nasty driver

Merge tag 'asoc-fix-v3.9-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v3.9

A few more fixes here and there, including quite a few nasty driver
specific ones, but nothing that has a major general impact.

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Merge branch 'soc' into pinmux-base

Conflicts:
drivers/pinctrl/sh-pfc/pfc-r8a7740.c

This merge is to provide r8a73a4 SoC files, which are added in the
soc branch and depended on by r8a73a4 pfc-cha

Merge branch 'soc' into pinmux-base

Conflicts:
drivers/pinctrl/sh-pfc/pfc-r8a7740.c

This merge is to provide r8a73a4 SoC files, which are added in the
soc branch and depended on by r8a73a4 pfc-changes which are to
be added to the pinmux branch.

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Merge tag 'v3.9-rc5' into wq/for-3.10

Writeback conversion to workqueue will be based on top of wq/for-3.10
branch to take advantage of custom attrs and NUMA support for unbound
workqueues. Mainlin

Merge tag 'v3.9-rc5' into wq/for-3.10

Writeback conversion to workqueue will be based on top of wq/for-3.10
branch to take advantage of custom attrs and NUMA support for unbound
workqueues. Mainline currently contains two commits which result in
non-trivial merge conflicts with wq/for-3.10 and because
block/for-3.10/core is based on v3.9-rc3 which contains one of the
conflicting commits, we need a pre-merge-window merge anyway. Let's
pull v3.9-rc5 into wq/for-3.10 so that the block tree doesn't suffer
from workqueue merge conflicts.

The two conflicts and their resolutions:

* e68035fb65 ("workqueue: convert to idr_alloc()") in mainline changes
worker_pool_assign_id() to use idr_alloc() instead of the old idr
interface. worker_pool_assign_id() goes through multiple locking
changes in wq/for-3.10 causing the following conflict.

static int worker_pool_assign_id(struct worker_pool *pool)
{
int ret;

<<<<<<< HEAD
lockdep_assert_held(&wq_pool_mutex);

do {
if (!idr_pre_get(&worker_pool_idr, GFP_KERNEL))
return -ENOMEM;
ret = idr_get_new(&worker_pool_idr, pool, &pool->id);
} while (ret == -EAGAIN);
=======
mutex_lock(&worker_pool_idr_mutex);
ret = idr_alloc(&worker_pool_idr, pool, 0, 0, GFP_KERNEL);
if (ret >= 0)
pool->id = ret;
mutex_unlock(&worker_pool_idr_mutex);
>>>>>>> c67bf5361e7e66a0ff1f4caf95f89347d55dfb89

return ret < 0 ? ret : 0;
}

We want locking from the former and idr_alloc() usage from the
latter, which can be combined to the following.

static int worker_pool_assign_id(struct worker_pool *pool)
{
int ret;

lockdep_assert_held(&wq_pool_mutex);

ret = idr_alloc(&worker_pool_idr, pool, 0, 0, GFP_KERNEL);
if (ret >= 0) {
pool->id = ret;
return 0;
}
return ret;
}

* eb2834285c ("workqueue: fix possible pool stall bug in
wq_unbind_fn()") updated wq_unbind_fn() such that it has single
larger for_each_std_worker_pool() loop instead of two separate loops
with a schedule() call inbetween. wq/for-3.10 renamed
pool->assoc_mutex to pool->manager_mutex causing the following
conflict (earlier function body and comments omitted for brevity).

static void wq_unbind_fn(struct work_struct *work)
{
...
spin_unlock_irq(&pool->lock);
<<<<<<< HEAD
mutex_unlock(&pool->manager_mutex);
}
=======
mutex_unlock(&pool->assoc_mutex);
>>>>>>> c67bf5361e7e66a0ff1f4caf95f89347d55dfb89

schedule();

<<<<<<< HEAD
for_each_cpu_worker_pool(pool, cpu)
=======
>>>>>>> c67bf5361e7e66a0ff1f4caf95f89347d55dfb89
atomic_set(&pool->nr_running, 0);

spin_lock_irq(&pool->lock);
wake_up_worker(pool);
spin_unlock_irq(&pool->lock);
}
}

The resolution is mostly trivial. We want the control flow of the
latter with the rename of the former.

static void wq_unbind_fn(struct work_struct *work)
{
...
spin_unlock_irq(&pool->lock);
mutex_unlock(&pool->manager_mutex);

schedule();

atomic_set(&pool->nr_running, 0);

spin_lock_irq(&pool->lock);
wake_up_worker(pool);
spin_unlock_irq(&pool->lock);
}
}

Signed-off-by: Tejun Heo <tj@kernel.org>

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