[GIT PULL] Block driver changes for 3.20

From: Jens Axboe
Date: Thu Feb 12 2015 - 15:58:01 EST

Hi Linus,

This is the pull request for block drivers for 3.20. This branch sits on
top of (an earlier) for-3.20/core. It contains:

- The 4k/partition fixes for brd from Boaz/Matthew.

- A few xen front/back block fixes from David Vrabel and Roger Pau

- Floppy changes from Takashi, cleaning the device file creation.

- Switching libata to use the new blk-mq tagging policy, removing code
(and a suboptimal implementation) from libata. This will throw you a
merge conflict, since a bug in the original libata tagging code was
fixed since this code was branched. Trivial. From Shaohua.

- Conversion of loop to blk-mq, from Ming Lei.

- Cleanup of the io_schedule() handling in bsg from Peter Zijlstra. He
claims it improves on unreadable code, which will cost him a beer.

- Maintainer update or NDB, now handled by Markus Pargmann.

- NVMe:
- Optimization from me that avoids a kmalloc/kfree per IO for
smaller (<= 8KB) IO. This cuts about 1% of high IOPS CPU
- Removal of (now) dead RCU code, a relic from before NVMe was
converted to blk-mq.

Please pull!

git://git.kernel.dk/linux-block.git for-3.20/drivers

Boaz Harrosh (2):
brd: Fix all partitions BUGs
brd: Request from fdisk 4k alignment

David Vrabel (1):
xen-blkback: default to X86_32 ABI on x86

Jens Axboe (5):
loop: add blk-mq.h include
Merge branch 'for-3.20/core' into for-3.20/drivers
null_blk: suppress invalid partition info
Merge branch 'for-3.20/core' into for-3.20/drivers
NVMe: avoid kmalloc/kfree for smaller IO

Markus Pargmann (1):
MAINTAINERS: Update NBD maintainer

Matthew Wilcox (1):
axonram: Fix bug in direct_access

Ming Lei (4):
block: loop: improve performance via blk-mq
block: loop: say goodby to bio
block: loop: introduce lo_discard() and lo_req_flush()
block: loop: don't handle REQ_FUA explicitly

Peter Zijlstra (1):
block: Simplify bsg complete all

Roger Pau Monne (2):
xen-blkback,xen-blkfront: add myself as maintainer
xen-blkfront: fix accounting of reqs when migrating

Shaohua Li (3):
libata: use blk taging
libata: move sas ata tag allocation to libata-scsi.c
libata: make sata_sil24 use fifo tag allocator

Takashi Iwai (1):
floppy: Avoid manual call of device_create_file()

kaoudis (1):
NVMe: within nvme_free_queues(), delete RCU sychro/deferred free

arch/powerpc/sysdev/axonram.c | 2 +-
block/bsg.c | 72 +++----
drivers/ata/libata-core.c | 67 ++----
drivers/ata/libata-scsi.c | 30 ++-
drivers/ata/libata.h | 4 +-
drivers/ata/sata_sil24.c | 1 +
drivers/block/brd.c | 109 +++++-----
drivers/block/floppy.c | 17 +-
drivers/block/loop.c | 416 ++++++++++++++++++-------------------
drivers/block/loop.h | 18 +-
drivers/block/null_blk.c | 2 +-
drivers/block/nvme-core.c | 128 ++++++++----
drivers/block/xen-blkback/common.h | 9 +
drivers/block/xen-blkback/xenbus.c | 4 +-
drivers/block/xen-blkfront.c | 4 +-
include/linux/libata.h | 5 +-
include/linux/nvme.h | 3 +-
include/linux/wait.h | 15 ++
19 files changed, 473 insertions(+), 437 deletions(-)

Jens Axboe

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