Messages in this thread | | | Date | Wed, 25 May 2011 15:03:29 +0200 | From | Jens Axboe <> | Subject | [GIT PULL] Core block bits for 2.6.40 |
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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@intel.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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