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    Subject[GIT PULL] block bits for 3.1-rc
    Hi Linus,

    This is a lot larger than it usually would be at this time. The
    reason is mostly the expedited merge window overlapping with
    my vacation. That said, the traffic in this branch in the last
    few weeks has only been fixes and it's continually been in linux-next
    and run on my various machines. So I'm quite confident that it's sound.

    So what's in here:

    - A few fixes for some cdrom corner cases.
    - Flush fixing for stacked devices
    - Revert of the CFQ meta data special treatment patch, it's been shown
    to regress a kernel build workload by about 10%. More investigation
    is needed, for 3.1 lets just back it out.
    - bsg helper library, moving the FC class code into the block layer
    for proper sharing with eg iscsi/SAS.
    - Nicer loop multi device handling code, and loop deadlock fix.
    - Two fixups for xen-blkfront, one for xen-blkback.
    - Fixups for rq_affinity changes that went into 3.1-rc1.
    - Fixup for CFQ
    - Support for properly tracing FLUSH and FUA commands with blktrace.

    Diffstat looks large because of the bsg-lib addition, apart from that
    it's mostly smallish stuff.

    Please pull.


    git://git.kernel.dk/linux-block.git for-linus

    Andrew Morton (1):
    drivers/cdrom/cdrom.c: relax check on dvd manufacturer value

    Axel Lin (1):
    block: swim3: fix unterminated of_device_id table

    H Hartley Sweeten (1):
    drivers/block/drbd/drbd_nl.c: use bitmap_parse instead of __bitmap_parse

    Herbert Poetzl (1):
    block/genhd.c: remove useless cast in diskstats_show()

    Jeff Moyer (2):
    allow blk_flush_policy to return REQ_FSEQ_DATA independent of *FLUSH
    block: fix flush machinery for stacking drivers with differring flush flags

    Jens Axboe (3):
    bsg-lib: add module.h include
    Merge branch 'stable/for-jens' of git://git.kernel.org/.../konrad/xen into for-linus
    Revert "cfq: Remove special treatment for metadata rqs."

    Kay Sievers (4):
    loop: replace linked list of allocated devices with an idr index
    loop: add management interface for on-demand device allocation
    loop: add BLK_DEV_LOOP_MIN_COUNT=%i to allow distros 0 pre-allocated loop devices
    loop: fix deadlock when sysfs and LOOP_CLR_FD race against each other

    Konrad Rzeszutek Wilk (1):
    xen/blkback: Make description more obvious.

    Matthew Wilcox (1):
    Move some REQ flags to the common bio/request area

    Mike Christie (1):
    block: add bsg helper library

    Namhyung Kim (1):
    blktrace: add FLUSH/FUA support

    Shaohua Li (2):
    blk-throttle: correctly determine sync bio
    block: improve rq_affinity placement

    Stefan Bader (2):
    xen-blkfront: Drop name and minor adjustments for emulated scsi devices
    xen-blkfront: Fix one off warning about name clash

    Tao Ma (1):
    block: Make rq_affinity = 1 work as expected

    Vivek Goyal (2):
    cfq-iosched: Reduce linked group count upon group destruction
    cfq-iosched: Add documentation about idling

    Documentation/block/cfq-iosched.txt | 71 +++++++++
    Documentation/kernel-parameters.txt | 9 +-
    block/Kconfig | 10 ++
    block/Makefile | 1 +
    block/blk-core.c | 8 +-
    block/blk-flush.c | 25 +++-
    block/blk-softirq.c | 8 +
    block/blk-throttle.c | 4 +-
    block/blk.h | 2 +
    block/bsg-lib.c | 298 +++++++++++++++++++++++++++++++++++
    block/cfq-iosched.c | 21 +++
    block/genhd.c | 8 +-
    drivers/block/Kconfig | 17 ++-
    drivers/block/drbd/drbd_nl.c | 4 +-
    drivers/block/loop.c | 297 ++++++++++++++++++++++++-----------
    drivers/block/swim3.c | 1 +
    drivers/block/xen-blkfront.c | 6 +-
    drivers/cdrom/cdrom.c | 8 +-
    include/linux/blk_types.h | 7 +-
    include/linux/blkdev.h | 5 +
    include/linux/blktrace_api.h | 5 +-
    include/linux/bsg-lib.h | 73 +++++++++
    include/linux/loop.h | 5 +-
    include/linux/miscdevice.h | 1 +
    include/trace/events/block.h | 20 ++-
    kernel/trace/blktrace.c | 21 ++-
    26 files changed, 800 insertions(+), 135 deletions(-)
    create mode 100644 block/bsg-lib.c
    create mode 100644 include/linux/bsg-lib.h

    --
    Jens Axboe



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