linux-kernel - [GIT PULL] block core bits for 3.4

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Date:	Fri, 13 Apr 2012 10:00:45 +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] block core bits for 3.4

Hi Linus,

It's a nice and quiet round this time, since most of the
tricky stuff has been pushed to 3.5 to give it more time
to mature. After a few hectic block IO core changes for
3.3 and 3.2, I'm quite happy with a slow round.

Really minor stuff in here, the only real functional change is making
the auto-unplug threshold a per-queue entity. The threshold is set so
that it's low enough that we don't hold off IO for too long, but still
big enough to get a nice benefit from the batched insert (and hence
queue lock cost reduction). For raid configurations, this currently
breaks down.

Please pull.

  git://git.kernel.dk/linux-block.git for-3.4/core

Andi Kleen (1):
      block: use lockdep_assert_held for queue locking

Dan Carpenter (1):
      block: blk_alloc_queue_node(): use caller's GFP flags instead of GFP_KERNEL

Shaohua Li (1):
      block: make auto block plug flush threshold per-disk based

Tao Ma (2):
      block: Make cfq_target_latency tunable through sysfs.
      Documentation: Add sysfs ABI change for cfq's target latency.

 Documentation/ABI/testing/sysfs-cfq-target-latency |    8 ++++++++
 block/blk-core.c                                   |    5 +++--
 block/blk-throttle.c                               |    2 +-
 block/cfq-iosched.c                                |   10 ++++++++--
 include/linux/blkdev.h                             |   18 +++++++-----------
 5 files changed, 27 insertions(+), 16 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-cfq-target-latency

-- 
Jens Axboe

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