block: remove ioc_*_changed()

After the previous patch to cfq, there's no ioc_get_changed() user
left. This patch yanks out ioc_{ioprio|cgroup|get}_changed() and all
related stuff.

Signed-off-by:

block: remove ioc_*_changed()

After the previous patch to cfq, there's no ioc_get_changed() user
left. This patch yanks out ioc_{ioprio|cgroup|get}_changed() and all
related stuff.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Merge branch 'next' into for-linus

Merge tag 'v3.3' into staging/for_v3.4

* tag 'v3.3': (1646 commits)
Linux 3.3
Don't limit non-nested epoll paths
netfilter: ctnetlink: fix race between delete and timeout expiration
ipv6: Do

Merge tag 'v3.3' into staging/for_v3.4

* tag 'v3.3': (1646 commits)
Linux 3.3
Don't limit non-nested epoll paths
netfilter: ctnetlink: fix race between delete and timeout expiration
ipv6: Don't dev_hold(dev) in ip6_mc_find_dev_rcu.
nilfs2: fix NULL pointer dereference in nilfs_load_super_block()
nilfs2: clamp ns_r_segments_percentage to [1, 99]
afs: Remote abort can cause BUG in rxrpc code
afs: Read of file returns EBADMSG
C6X: remove dead code from entry.S
wimax/i2400m: fix erroneous NETDEV_TX_BUSY use
net/hyperv: fix erroneous NETDEV_TX_BUSY use
net/usbnet: reserve headroom on rx skbs
bnx2x: fix memory leak in bnx2x_init_firmware()
bnx2x: fix a crash on corrupt firmware file
sch_sfq: revert dont put new flow at the end of flows
ipv6: fix icmp6_dst_alloc()
MAINTAINERS: Add Serge as maintainer of capabilities
drivers/video/backlight/s6e63m0.c: fix corruption storing gamma mode
MAINTAINERS: add entry for exynos mipi display drivers
MAINTAINERS: fix link to Gustavo Padovans tree
...

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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

Merge remote-tracking branch 'regulator/topic/stub' into regulator-next

Merge branch 'topic/asoc' into for-linus

drm: Merge tag 'v3.3-rc7' into drm-core-next

Merge the fixes so far into core-next, needed to test
intel driver.

Conflicts:
drivers/gpu/drm/i915/intel_ringbuffer.c

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
"Been sitting on this for a while, but lets get this out the door.
This fixes various important bugs

Merge branch 'for-linus' of git://git.kernel.dk/linux-block

Pull block fixes from Jens Axboe:
"Been sitting on this for a while, but lets get this out the door.
This fixes various important bugs for 3.3 final, along with a few more
trivial ones. Please pull!"

* 'for-linus' of git://git.kernel.dk/linux-block:
block: fix ioc leak in put_io_context
block, sx8: fix pointer math issue getting fw version
Block: use a freezable workqueue for disk-event polling
drivers/block/DAC960: fix -Wuninitialized warning
drivers/block/DAC960: fix DAC960_V2_IOCTL_Opcode_T -Wenum-compare warning
block: fix __blkdev_get and add_disk race condition
block: Fix setting bio flags in drivers (sd_dif/floppy)
block: Fix NULL pointer dereference in sd_revalidate_disk
block: exit_io_context() should call elevator_exit_icq_fn()
block: simplify ioc_release_fn()
block: replace icq->changed with icq->flags

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block: fix ioc leak in put_io_context

When put_io_context is called, if ioc->icq_list is empty and refcount
is 1, kernel will not free the ioc.

This is caught by following kmemleak:

unreferenced o

block: fix ioc leak in put_io_context

When put_io_context is called, if ioc->icq_list is empty and refcount
is 1, kernel will not free the ioc.

This is caught by following kmemleak:

unreferenced object 0xffff880036349fe0 (size 216):
comm "sh", pid 2137, jiffies 4294931140 (age 290579.412s)
hex dump (first 32 bytes):
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
01 00 01 00 ad 4e ad de ff ff ff ff 00 00 00 00 .....N..........
backtrace:
[<ffffffff8169f926>] kmemleak_alloc+0x26/0x50
[<ffffffff81195a9c>] kmem_cache_alloc_node+0x1cc/0x2a0
[<ffffffff81356b67>] create_io_context_slowpath+0x27/0x130
[<ffffffff81356d2b>] get_task_io_context+0xbb/0xf0
[<ffffffff81055f0e>] copy_process+0x188e/0x18b0
[<ffffffff8105609b>] do_fork+0x11b/0x420
[<ffffffff810247f8>] sys_clone+0x28/0x30
[<ffffffff816d3373>] stub_clone+0x13/0x20
[<ffffffffffffffff>] 0xffffffffffffffff

ioc should be freed if ioc->icq_list is empty.
Signed-off-by: Xiaotian Feng <dannyfeng@tencent.com>
Acked-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Merge remote-tracking branch 'regmap/topic/drivers' into regmap-next

Resolved simple add/add conflicts:
drivers/base/regmap/internal.h
drivers/base/regmap/regmap.c

Merge tag 'v3.3-rc7' into x86/platform

Merge reason: Update to the almost-final v3.3 kernel.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge tag 'v3.3-rc7' into x86/mce

Merge reason: Update from an ancient -rc1 base to an almost-final stable kernel.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'x86/cleanups' into perf/uprobes

Merge reason: We want to merge a dependent patch.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge 3.3-rc6 into driver-core-next

This was done to resolve a conflict in the drivers/base/cpu.c file.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

Merge commit 'v3.3-rc6' into next

block: add io_context->active_ref

Currently ioc->nr_tasks is used to decide two things - whether an ioc
is done issuing IOs and whether it's shared by multiple tasks. This
patch separate out the fi

block: add io_context->active_ref

Currently ioc->nr_tasks is used to decide two things - whether an ioc
is done issuing IOs and whether it's shared by multiple tasks. This
patch separate out the first into ioc->active_ref, which is acquired
and released using {get|put}_io_context_active() respectively.

This will be used to associate bio's with a given task. This patch
doesn't introduce any visible behavior change.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

show more ...

block: interface update for ioc/icq creation functions

Make the following interface updates to prepare for future ioc related
changes.

* create_io_context() returning ioc only works for %current be

block: interface update for ioc/icq creation functions

Make the following interface updates to prepare for future ioc related
changes.

* create_io_context() returning ioc only works for %current because it
doesn't increment ref on the ioc. Drop @task parameter from it and
always assume %current.

* Make create_io_context_slowpath() return 0 or -errno and rename it
to create_task_io_context().

* Make ioc_create_icq() take @ioc as parameter instead of assuming
that of %current. The caller, get_request(), is updated to create
ioc explicitly and then pass it into ioc_create_icq().

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Merge remote-tracking branch 'omap/hsmmc' into for_3.4/cleanup/pm-base

Merge remote branch 'wireless-next/master' into ath6kl-next

Conflicts:
drivers/net/wireless/ath/ath6kl/cfg80211.c

Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into topic/asoc

This has been a very active release for ASoC, as well as the usual raft
of bugfixes and driver upd

Merge tag 'asoc-3.4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into topic/asoc

This has been a very active release for ASoC, as well as the usual raft
of bugfixes and driver updates there's quite a few framework enhancements.
Most are either small or are laying the groundwork for user visible
features (especially dynamic PCM), the most directly visible change is
the dmaengine library. There's also a bunch of regmap API enhancements
pulled into the tree so that either the framework or drivers can take
advantage of the new features.

Changes include:

- Support for widgets not associated with a CODEC, an important part of
the dynamic PCM framework.

- A library factoring out the common code shared by dmaengine based DMA
drivers contributed by Lars-Peter Clausen. This will save a lot of
code and make it much easier to deploy enhancements to dmaengine.

- Support for binary controls, used for providing runtime configuration
of algorithm coefficients.

- A new DAPM widget type for regulator supplies allowing drivers for
devices that can power down unused supplies while active to do without
any per-driver code.

- DAPM widgets for DAIs, initially giving a speed boost for playback
startup and shutdown and also the basis for CODEC<->CODEC DAI link
support.

- Support for specifying the number of significant bits on audio
interfaces, useful for allowing applications to know how much effort to
put into generating data for a larger sample format.

- Conversion of the FSI driver used on some SH processors to DMAEngine.

- New CODEC drivers for Maxim MAX9768 and Wolfson Microelectronics WM2200.

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Merge branch 'perf/urgent' into perf/core

Conflicts:
tools/perf/builtin-record.c
tools/perf/builtin-top.c
tools/perf/perf.h
tools/perf/util/top.h

Merge reason: resolve these cherry-picking conf

Merge branch 'perf/urgent' into perf/core

Conflicts:
tools/perf/builtin-record.c
tools/perf/builtin-top.c
tools/perf/perf.h
tools/perf/util/top.h

Merge reason: resolve these cherry-picking conflicts.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Merge tag 'tegra-soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra into tegra/soc2

From: Olof Johansson <olof@lixom.net>
Tegra 30 SMP support

I did this as a separate topic branch b

Merge tag 'tegra-soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra into tegra/soc2

From: Olof Johansson <olof@lixom.net>
Tegra 30 SMP support

I did this as a separate topic branch because it depends on both the
soc and the soc-drivers branch, so it brings both of those in as a base.

This branch contains work to enable SMP support on Tegra30 and reworks
some of the SMP bringup for T20 as well.

It also contains a device tree patch that builds on top of the SMP/clock
changes in the rest of the branch, so it made more sense to apply it
here than deal with the merge conflicts back and forth.

* tag 'tegra-soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/olof/tegra:
ARM: dt: Explicitly configure all serial ports on Tegra Cardhu
ARM: tegra: support for secondary cores on Tegra30
ARM: tegra: support for Tegra30 CPU powerdomains
ARM: tegra: add support for Tegra30 powerdomains
ARM: tegra: export tegra_powergate_is_powered()
ARM: tegra: prepare powergate.c for multiple variants
ARM: tegra: rework Tegra secondary CPU core bringup
ARM: tegra: functions to access the flowcontroller
ARM: tegra: initialize Tegra chipid early
ARM: tegra: export Tegra chipid
ARM: tegra: cleanup use of chipid register

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

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Merge branch 'irqdomain/next' of git://git.secretlab.ca/git/linux-2.6

Merge branch 'linus' into sched/core

Merge reason: we'll queue up dependent patches.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

Merge branch 'irqdomain/next' into gpio/next