[GIT PULL] block core bits for 3.4
From: Jens Axboe
Date: Fri Apr 13 2012 - 04:13:14 EST
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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