Merge branch 'linus' into timers/urgent

Get upstream changes so we can apply fixes against them

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

Merge branch 'for-3.11/core' of git://git.kernel.dk/linux-block

Pull core block IO updates from Jens Axboe:
"Here are the core IO block bits for 3.11. It contains:

- A tweak to the reserved tag

Merge branch 'for-3.11/core' of git://git.kernel.dk/linux-block

Pull core block IO updates from Jens Axboe:
"Here are the core IO block bits for 3.11. It contains:

- A tweak to the reserved tag logic from Jan, for weirdo devices with
just 3 free tags. But for those it improves things substantially
for random writes.

- Periodic writeback fix from Jan. Marked for stable as well.

- Fix for a race condition in IO scheduler switching from Jianpeng.

- The hierarchical blk-cgroup support from Tejun. This is the grunt
of the series.

- blk-throttle fix from Vivek.

Just a note that I'm in the middle of a relocation, whole family is
flying out tomorrow. Hence I will be awal the remainder of this week,
but back at work again on Monday the 15th. CC'ing Tejun, since any
potential "surprises" will most likely be from the blk-cgroup work.
But it's been brewing for a while and sitting in my tree and
linux-next for a long time, so should be solid."

* 'for-3.11/core' of git://git.kernel.dk/linux-block: (36 commits)
elevator: Fix a race in elevator switching
block: Reserve only one queue tag for sync IO if only 3 tags are available
writeback: Fix periodic writeback after fs mount
blk-throttle: implement proper hierarchy support
blk-throttle: implement throtl_grp->has_rules[]
blk-throttle: Account for child group's start time in parent while bio climbs up
blk-throttle: add throtl_qnode for dispatch fairness
blk-throttle: make throtl_pending_timer_fn() ready for hierarchy
blk-throttle: make tg_dispatch_one_bio() ready for hierarchy
blk-throttle: make blk_throtl_bio() ready for hierarchy
blk-throttle: make blk_throtl_drain() ready for hierarchy
blk-throttle: dispatch from throtl_pending_timer_fn()
blk-throttle: implement dispatch looping
blk-throttle: separate out throtl_service_queue->pending_timer from throtl_data->dispatch_work
blk-throttle: set REQ_THROTTLED from throtl_charge_bio() and gate stats update with it
blk-throttle: implement sq_to_tg(), sq_to_td() and throtl_log()
blk-throttle: add throtl_service_queue->parent_sq
blk-throttle: generalize update_disptime optimization in blk_throtl_bio()
blk-throttle: dispatch to throtl_data->service_queue.bio_lists[]
blk-throttle: move bio_lists[] and friends to throtl_service_queue
...

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elevator: Fix a race in elevator switching

There's a race between elevator switching and normal io operation.
Because the allocation of struct elevator_queue and struct elevator_data
don't i

elevator: Fix a race in elevator switching

There's a race between elevator switching and normal io operation.
Because the allocation of struct elevator_queue and struct elevator_data
don't in a atomic operation.So there are have chance to use NULL
->elevator_data.
For example:
Thread A: Thread B
blk_queu_bio elevator_switch
spin_lock_irq(q->queue_block) elevator_alloc
elv_merge elevator_init_fn

Because call elevator_alloc, it can't hold queue_lock and the
->elevator_data is NULL.So at the same time, threadA call elv_merge and
nedd some info of elevator_data.So the crash happened.

Move the elevator_alloc into func elevator_init_fn, it make the
operations in a atomic operation.

Using the follow method can easy reproduce this bug
1:dd if=/dev/sdb of=/dev/null
2:while true;do echo noop > scheduler;echo deadline > scheduler;done

The test method also use this method.

Signed-off-by: Jianpeng Ma <majianpeng@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Merge branch 'next' into for-linus

Prepare first set of updates for 3.11 merge window.

Merge branch 'for-next' of git://github.com/rydberg/linux into next

Pull in changes from Henrik: "a trivial MT documentation fix".

Merge branch 'sched/urgent' into sched/core

Merge in fixes before applying ongoing new work.

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

Merge branch 'master' into for-next

Merge tag 'v3.10-rc2' into drm-intel-next-queued

Backmerge Linux 3.10-rc2 since the various (rather trivial) conflicts
grew a bit out of hand. intel_dp.c has the only real functional
conflict since

Merge tag 'v3.10-rc2' into drm-intel-next-queued

Backmerge Linux 3.10-rc2 since the various (rather trivial) conflicts
grew a bit out of hand. intel_dp.c has the only real functional
conflict since the logic changed while dev_priv->edp.bpp was moved
around.

Also squash in a whitespace fixup from Ben Widawsky for
i915_gem_gtt.c, git seems to do something pretty strange in there
(which I don't fully understand tbh).

Conflicts:
drivers/gpu/drm/i915/i915_reg.h
drivers/gpu/drm/i915/intel_dp.c

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

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Merge tag 'v3.10-rc1' into stable/for-linus-3.10

Linux 3.10-rc1

* tag 'v3.10-rc1': (12273 commits)
Linux 3.10-rc1
[SCSI] qla2xxx: Update firmware link in Kconfig file.
[SCSI] iscsi class, qla

Merge tag 'v3.10-rc1' into stable/for-linus-3.10

Linux 3.10-rc1

* tag 'v3.10-rc1': (12273 commits)
Linux 3.10-rc1
[SCSI] qla2xxx: Update firmware link in Kconfig file.
[SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used
[SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type
[SCSI] pm80xx: thermal, sas controller config and error handling update
[SCSI] pm80xx: NCQ error handling changes
[SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers
[SCSI] pm80xx: Changed module name and debug messages update
[SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it
[SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone
[SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files
[SCSI] pm80xx: MSI-X implementation for using 64 interrupts
[SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve
[SCSI] pm80xx: Multiple inbound/outbound queue configuration
[SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC
[SCSI] lpfc: fix up Kconfig dependencies
[SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd
dm cache: set config value
dm cache: move config fns
dm thin: generate event when metadata threshold passed
...

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Merge tag 'v3.10-rc1' into patchwork

Linux 3.10-rc1

* tag 'v3.10-rc1': (11697 commits)
Linux 3.10-rc1
[SCSI] qla2xxx: Update firmware link in Kconfig file.
[SCSI] iscsi class, qla4xxx: fix se

Merge tag 'v3.10-rc1' into patchwork

Linux 3.10-rc1

* tag 'v3.10-rc1': (11697 commits)
Linux 3.10-rc1
[SCSI] qla2xxx: Update firmware link in Kconfig file.
[SCSI] iscsi class, qla4xxx: fix sess/conn refcounting when find fns are used
[SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type
[SCSI] pm80xx: thermal, sas controller config and error handling update
[SCSI] pm80xx: NCQ error handling changes
[SCSI] pm80xx: WWN Modification for PM8081/88/89 controllers
[SCSI] pm80xx: Changed module name and debug messages update
[SCSI] pm80xx: Firmware flash memory free fix, with addition of new memory region for it
[SCSI] pm80xx: SPC new firmware changes for device id 0x8081 alone
[SCSI] pm80xx: Added SPCv/ve specific hardware functionalities and relevant changes in common files
[SCSI] pm80xx: MSI-X implementation for using 64 interrupts
[SCSI] pm80xx: Updated common functions common for SPC and SPCv/ve
[SCSI] pm80xx: Multiple inbound/outbound queue configuration
[SCSI] pm80xx: Added SPCv/ve specific ids, variables and modify for SPC
[SCSI] lpfc: fix up Kconfig dependencies
[SCSI] Handle MLQUEUE busy response in scsi_send_eh_cmnd
dm cache: set config value
dm cache: move config fns
dm thin: generate event when metadata threshold passed
...

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Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

Pull block core updates from Jens Axboe:

- Major bit is Kents prep work for immutable bio vecs.

- Stable candidate fix for a sched

Merge branch 'for-3.10/core' of git://git.kernel.dk/linux-block

Pull block core updates from Jens Axboe:

- Major bit is Kents prep work for immutable bio vecs.

- Stable candidate fix for a scheduling-while-atomic in the queue
bypass operation.

- Fix for the hang on exceeded rq->datalen 32-bit unsigned when merging
discard bios.

- Tejuns changes to convert the writeback thread pool to the generic
workqueue mechanism.

- Runtime PM framework, SCSI patches exists on top of these in James'
tree.

- A few random fixes.

* 'for-3.10/core' of git://git.kernel.dk/linux-block: (40 commits)
relay: move remove_buf_file inside relay_close_buf
partitions/efi.c: replace useless kzalloc's by kmalloc's
fs/block_dev.c: fix iov_shorten() criteria in blkdev_aio_read()
block: fix max discard sectors limit
blkcg: fix "scheduling while atomic" in blk_queue_bypass_start
Documentation: cfq-iosched: update documentation help for cfq tunables
writeback: expose the bdi_wq workqueue
writeback: replace custom worker pool implementation with unbound workqueue
writeback: remove unused bdi_pending_list
aoe: Fix unitialized var usage
bio-integrity: Add explicit field for owner of bip_buf
block: Add an explicit bio flag for bios that own their bvec
block: Add bio_alloc_pages()
block: Convert some code to bio_for_each_segment_all()
block: Add bio_for_each_segment_all()
bounce: Refactor __blk_queue_bounce to not use bi_io_vec
raid1: use bio_copy_data()
pktcdvd: Use bio_reset() in disabled code to kill bi_idx usage
pktcdvd: use bio_copy_data()
block: Add bio_copy_data()
...

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Merge branch 'next' into for-linus

Prepare first set of updates for 3.10 merge window.

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 commit '31d9adca82ce65e5c99d045b5fd917c702b6fce3' into tmp

Conflicts:
arch/arm/plat-omap/dmtimer.c

Merge tag v3.9-rc1 into for-3.9/upstream-fixes

This is done so that I am able to apply fix for commit
0322bd3980b3 ("usb hid quirks for Masterkit MA901 usb radio") which
went into 3.9-rc1.

Merge branch 'for-3.10/hid-driver-transport-cleanups' into for-3.10/mt-hybrid-finger-pen

block: implement runtime pm strategy

When a request is added:
If device is suspended or is suspending and the request is not a
PM request, resume the device.

When the last request finishes:

block: implement runtime pm strategy

When a request is added:
If device is suspended or is suspending and the request is not a
PM request, resume the device.

When the last request finishes:
Call pm_runtime_mark_last_busy().

When pick a request:
If device is resuming/suspending, then only PM request is allowed
to go.

The idea and API is designed by Alan Stern and described here:
http://marc.info/?l=linux-scsi&m=133727953625963&w=2

Signed-off-by: Lin Ming <ming.m.lin@intel.com>
Signed-off-by: Aaron Lu <aaron.lu@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

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Merge tag 'tegra-for-3.10-fixes-for-mmc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into mmc-next

ARM: tegra: DT-related fixes needed by the MMC tree

In order to convert t

Merge tag 'tegra-for-3.10-fixes-for-mmc' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into mmc-next

ARM: tegra: DT-related fixes needed by the MMC tree

In order to convert the Tegra MMC driver to using mmc_of_parse(), some
bugs in the Tegra device-tree content need to be fixed first; it's
currently wrong but unused, and mmc_of_parse() causes that data to be
used for the first time.

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Merge tag 'v3.9-rc3' into drm-intel-next-queued

Backmerge so that I can merge Imre Deak's coalesced sg entries fixes,
which depend upon the new for_each_sg_page introduce in

commit a321e91b6d73ed01

Merge tag 'v3.9-rc3' into drm-intel-next-queued

Backmerge so that I can merge Imre Deak's coalesced sg entries fixes,
which depend upon the new for_each_sg_page introduce in

commit a321e91b6d73ed011ffceed384c40d2785cf723b
Author: Imre Deak <imre.deak@intel.com>
Date: Wed Feb 27 17:02:56 2013 -0800

lib/scatterlist: add simple page iterator

The merge itself is just two trivial conflicts:

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

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Merge tag 'v3.9-rc3' into v4l_for_linus

Linux 3.9-rc3

* tag 'v3.9-rc3': (11231 commits)
Linux 3.9-rc3
perf,x86: fix link failure for non-Intel configs
perf,x86: fix wrmsr_on_cpu() warning on

Merge tag 'v3.9-rc3' into v4l_for_linus

Linux 3.9-rc3

* tag 'v3.9-rc3': (11231 commits)
Linux 3.9-rc3
perf,x86: fix link failure for non-Intel configs
perf,x86: fix wrmsr_on_cpu() warning on suspend/resume
Btrfs: fix warning of free_extent_map
perf,x86: fix kernel crash with PEBS/BTS after suspend/resume
ALSA: hda - Fix missing EAPD/GPIO setup for Cirrus codecs
sound: sequencer: cap array index in seq_chn_common_event()
mfd: twl4030-madc: Remove __exit_p annotation
ALSA: hda/ca0132 - Remove extra setting of dsp_state.
ALSA: hda/ca0132 - Check download state of DSP.
ALSA: hda/ca0132 - Check if dspload_image succeeded.
mm/fremap.c: fix possible oops on error path
list: Fix double fetch of pointer in hlist_entry_safe()
Btrfs: fix warning when creating snapshots
Btrfs: return as soon as possible when edquot happens
Btrfs: return EIO if we have extent tree corruption
btrfs: use rcu_barrier() to wait for bdev puts at unmount
Btrfs: remove btrfs_try_spin_lock
Btrfs: get better concurrency for snapshot-aware defrag work
hwmon: (pmbus/ltc2978) Fix temperature reporting
...

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Merge branch 'master' into for-next

Sync with Linus' tree to be able to apply patch to the newly
added ITG-3200 driver.

Merge tag 'v3.9-rc3' into next

Merge with mainline to bring in module_platform_driver_probe() and
devm_ioremap_resource().

Merge tag 'v3.9-rc2' into next

Sync with Linus.

Linux 3.9-rc2

HID: Merge branch 'master' into for-3.10/hid-driver-transport-cleanups

Sync with Linus' tree. This is necessary to resolve build conflict
caused by dcd9006b1b053c7b ("HID: logitech-dj: do not direct

HID: Merge branch 'master' into for-3.10/hid-driver-transport-cleanups

Sync with Linus' tree. This is necessary to resolve build conflict
caused by dcd9006b1b053c7b ("HID: logitech-dj: do not directly call
hid_output_raw_report() during probe") which issues direct call to
usbhid_submit_report(), but that is gone in this branch and
hid_hw_request() has to be used instead.

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

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Merge branch 'master' into queue

* master: (15791 commits)
Linux 3.9-rc1
btrfs/raid56: Add missing #include <linux/vmalloc.h>
fix compat_sys_rt_sigprocmask()
SUNRPC: One line comment fix
e

Merge branch 'master' into queue

* master: (15791 commits)
Linux 3.9-rc1
btrfs/raid56: Add missing #include <linux/vmalloc.h>
fix compat_sys_rt_sigprocmask()
SUNRPC: One line comment fix
ext4: enable quotas before orphan cleanup
ext4: don't allow quota mount options when quota feature enabled
ext4: fix a warning from sparse check for ext4_dir_llseek
ext4: convert number of blocks to clusters properly
ext4: fix possible memory leak in ext4_remount()
jbd2: fix ERR_PTR dereference in jbd2__journal_start
metag: Provide dma_get_sgtable()
metag: prom.h: remove declaration of metag_dt_memblock_reserve()
metag: copy devicetree to non-init memory
metag: cleanup metag_ksyms.c includes
metag: move mm/init.c exports out of metag_ksyms.c
metag: move usercopy.c exports out of metag_ksyms.c
metag: move setup.c exports out of metag_ksyms.c
metag: move kick.c exports out of metag_ksyms.c
metag: move traps.c exports out of metag_ksyms.c
metag: move irq enable out of irqflags.h on SMP
...

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

Conflicts:
arch/x86/kernel/kvmclock.c

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