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Message-ID: <4DDCFE21.80003@fusionio.com>
Date: Wed, 25 May 2011 15:03:29 +0200
From: Jens Axboe <jaxboe@...ionio.com>
To: Linus Torvalds <torvalds@...ux-foundation.org>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: [GIT PULL] Core block bits for 2.6.40
Hi Linus,
A real pull request this time. These are the core bits for the next
kernel. Nothing exciting in here in this round, with the churn in
the last release, this release will be mellow.
- Optimizations for queue flushing on SATA devices, where we
can't queue a FLUSH command. This fixes up a performance regression
caused by a bug fix to prevent potential live lock on adding
FLUSH commands at the head of the queue.
- Make stats lockless for blk-cgroup.
- Various bug fixes for blk-cgroup.
- Various little fixes and improvements to CFQ.
- Last round of media event changes.
- Fixes for discard topology reporting and sysfs documentation update
for the same.
- Add support for batched discards. This greatly speeds up discarding
an entire device.
- Fix for bad return value in the discard ioctl.
- Remove request plug state debug checks. Haven't triggered even during
the 2.6.39-rc devel cycle, so get rid of them.
Please pull!
git://git.kernel.dk/linux-2.6-block.git for-2.6.40/core
Gustavo F. Padovan (1):
backing-dev: Kill set but not used var in bdi_debug_stats_show()
James Bottomley (1):
block: add proper state guards to __elv_next_request
Jens Axboe (4):
fs: fixup warning part_discard_alignment_show()
Merge commit 'v2.6.39' into for-2.6.40/core
Merge branch 'for-linus' into for-2.6.40/core
block: get rid of on-stack plugging debug checks
Kees Cook (1):
iosched: remove redundant sprintf
Lukas Czerner (3):
blkdev: Submit discard bio in batches in blkdev_issue_discard()
blkdev: Simple cleanup in blkdev_issue_zeroout()
blkdev: Do not return -EOPNOTSUPP if discard is supported
Martin K. Petersen (2):
block: Fix discard topology stacking and reporting
block: Add sysfs documentation for the discard topology parameters
Namhyung Kim (4):
cfq-iosched: algebraic simplification in cfq_prio_to_maxrq()
cfq-iosched: reduce bit operations in cfq_choose_req()
cfq-iosched: remove unused 'group_changed' in cfq_service_tree_add()
cfq-iosched: free cic_index if cfqd allocation fails
Tao Ma (2):
block: Remove 'plug/unplug' comment in blk_execute_rq_nowait
block: Remove extra discard_alignment from hd_struct.
Tejun Heo (4):
cdrom: always check_disk_change() on open
block: rescan partitions on invalidated devices on -ENOMEDIA too
block: don't block events on excl write for non-optical devices
block: move bd_set_size() above rescan_partitions() in __blkdev_get()
Vivek Goyal (17):
blk-throttle: Do the new group initialization with the help of a function
blk-cgroup: move some fields of unaccounted_time file under right config option
cfq-iosched: Get rid of redundant function parameter "create"
cfq-iosched: Fix a possible race with cfq cgroup removal code
blk-cgroup: Allow sleeping while dynamically allocating a group
blk-throttle: Dynamically allocate root group
blk-throttle: Introduce a helper function to fill in device details
blk-throttle: Use helper function to add root throtl group to lists
blk-throttle: Free up a group only after one rcu grace period
blk-throttle: Make dispatch stats per cpu
blk-cgroup: Make 64bit per cpu stats safe on 32bit arch
blk-cgroup: Make cgroup stat reset path blkg->lock free for dispatch stats
blk-throttle: Make no throttling rule group processing lockless
cfq-iosched: Fix a memory leak of per cpu stats for root group
cfq-iosched: Make IO merge related stats per cpu
block: call elv_bio_merged() when merged
blk-cgroup: Initialize ioc->cgroup_changed at ioc creation time
shaohua.li@...el.com (3):
block: add a non-queueable flush flag
block: hold queue if flush is running for non-queueable flush drive
SATA: enable non-queueable flush flag
Documentation/ABI/testing/sysfs-block | 64 +++++++
block/blk-cgroup.c | 200 +++++++++++++++++----
block/blk-cgroup.h | 40 +++--
block/blk-core.c | 32 +---
block/blk-exec.c | 2 +-
block/blk-flush.c | 16 ++-
block/blk-ioc.c | 3 +
block/blk-lib.c | 82 +++------
block/blk-settings.c | 9 +-
block/blk-sysfs.c | 3 +-
block/blk-throttle.c | 313 +++++++++++++++++++++++++--------
block/blk.h | 23 +++-
block/cfq-iosched.c | 232 ++++++++++++++++++-------
block/elevator.c | 11 +-
drivers/ata/libata-scsi.c | 13 +-
drivers/block/paride/pcd.c | 2 +
drivers/cdrom/viocd.c | 4 +-
drivers/ide/ide-cd.c | 3 +-
drivers/scsi/sr.c | 2 +-
fs/block_dev.c | 34 ++--
fs/partitions/check.c | 8 +-
include/linux/blk_types.h | 2 -
include/linux/blkdev.h | 15 ++-
include/linux/genhd.h | 2 +-
mm/backing-dev.c | 4 +-
25 files changed, 794 insertions(+), 325 deletions(-)
--
Jens Axboe
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