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Subject[GIT PULL] block updates for 2.6.33-rc1
Hi Linus,

These are the block/IO related bits I have queued for the first big
push. The big part is the inclusion of drbd, the IO controller
support, a cciss driver update, and more CFQ tweaking. Apart from that
it's little updates here and there.

Please pull.

git://git.kernel.dk/linux-2.6-block.git for-2.6.33

Alberto Bertogli (1):
Do not __always_inline bvec_kmap_irq() and bvec_kunmap_irq()

Alex Chiang (2):
cciss: Make device attributes static
cciss: change Cmd_sg_list.sg_chain_dma type to dma_addr_t

Changli Gao (1):
sendfile(): check f_op.splice_write() rather than f_op.sendpage()

Christoph Hellwig (3):
block: use normal I/O path for discard requests
block: allow large discard requests
blkdev: flush disk cache on ->fsync

Corrado Zoccolo (12):
cfq-iosched: adapt slice to number of processes doing I/O
cfq-iosched: preparation to handle multiple service trees
cfq-iosched: reimplement priorities using different service trees
cfq-iosched: enable idling for last queue on priority class
cfq-iosched: fairness for sync no-idle queues
cfq-iosched: simplify prio-unboost code
cfq-iosched: fix next_rq computation
cfq-iosched: cleanup unreachable code
cfq-iosched: fix ncq detection code
cfq-iosched: fix no-idle preemption logic
cfq-iosched: idling on deep seeky sync queues
cfq-iosched: fix corner cases in idling logic

Don Brace (1):
cciss: Add enhanced scatter-gather support.

Gui Jianfeng (1):
cfq: Make use of service count to estimate the rb_key offset

H Hartley Sweeten (1):
block/scsi_ioctl.c: quiet sparse noise

Hideyuki Sasaki (1):
block/ps3: fix slow VRAM IO

Ilya Loginov (1):
block: add helpers to run flush_dcache_page() against a bio and a request's pages

Jeff Moyer (6):
cfq: calculate the seek_mean per cfq_queue not per cfq_io_context
cfq: merge cooperating cfq_queues
cfq: change the meaning of the cfqq_coop flag
cfq: break apart merged cfqqs if they stop cooperating
block: get rid of the WRITE_ODIRECT flag
aio: implement request batching

Jens Axboe (21):
drbd: remove tracing bits
block: remove the anticipatory IO scheduler
block: CFQ is more than a desktop scheduler
Merge branch 'master' into for-2.6.33
drbd: fixup for reverted dual in_flight patch
Merge branch 'for-linus' into for-2.6.33
cfq-iosched: fix style issue in cfq_get_avg_queues()
drbd: fix in_flight rw indexing
block: move bdi/address_space unplug functions to backing-dev.h
Merge branch 'cfq-2.6.33' into for-2.6.33
Merge branch 'for-linus' into for-2.6.33
cfq-iosched: fix merge error
cfq-iosched: get rid of the coop_preempt flag
Merge branch 'for-jens' of git://git.drbd.org/linux-2.6-drbd into for-2.6.33
Merge branch 'for-jens' of git://git.drbd.org/linux-2.6-drbd into for-2.6.33
Revert "cfq: Make use of service count to estimate the rb_key offset"
Merge branch 'master' into for-2.6.33
cfq-iosched: fix compile problem with !CONFIG_CGROUP
cfq-iosched: move IO controller declerations to a header file
io controller: quick fix for blk-cgroup and modular CFQ
cfq-iosched: use call_rcu() instead of doing grace period stall on queue exit

Jun'ichi Nomura (1):
Add a tracepoint for block request remapping

Karel Zak (2):
partitions: use sector size for EFI GPT
partitions: read whole sector with EFI GPT header

Lars Ellenberg (7):
dropping unneeded include autoconf.h
change default: by default, use socket buffer auto tuning
fix grammar in printk
drbd: fix check for too large lower level device
drbd: performance - don't lose unplug events
fix in-kernel configuration serialization
add missing state change on corrupt packet header in drbd_recv_header

Louis Rilling (2):
block: Fix io_context leak after clone with CLONE_IO
block: Fix io_context leak after failure of clone with CLONE_IO

Martin K. Petersen (2):
block: Expose discard granularity
block: Allow devices to indicate whether discarded blocks are zeroed

OGAWA Hirofumi (1):
flusher: Fix PF_FROZEN race

Philipp Reisner (10):
The DRBD driver
drbd: Work on permission enforcement
Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block into for-2.6.33
drbdsetup X resume-io should be usable to resume IO [Bugz 256]
Do not deadlock in drbd_disconnect() [bugz 258]
Now it is equal to DRBD release 8.3.5 without compat crap
Fixed a regression in resync decission code drbd_uuid_compare() [Bugz 260]
DRBD: Now the code is 8.3.6 + 3 fixes (without compat crap)
drbd: moved CN_IDX_DRBD and CN_VAL_DRBD to the right file
drbd_req.c: use part_[inc|dec]_in_flight()

Randy Dunlap (2):
drbd: needs __ratelimit()
block: jiffies fixes

Shaohua Li (3):
cfq-iosched: improve hw_tag detection
cfq-iosched: no dispatch limit for single queue
cfq-iosched: make nonrot check logic consistent

Stephen M. Cameron (10):
cciss: Fix problem with remove_from_scan_list on driver unload
cciss: Retry driver initiated cmds with unit attention condition
cciss: Remove the "withirq" parameter from various functions where possible
cciss: clean up code in cciss_shutdown
cciss: remove sendcmd() as it is no longer used.
cciss: fix typo that causes scsi status to be lost.
cciss: Remove unnecessary check in scan_thread
cciss: Do not automatically rescan on UNIT ATTENTION/LUN DATA CHANGED
cciss: Fix weird usage of ENXIO in cciss_scsi.c
cciss: fix scatter gather cleanup problems

Vivek Goyal (25):
Fix regression in direct writes performance due to WRITE_ODIRECT flag removal
blkio: Set must_dispatch only if we decided to not dispatch the request
blkio: Introduce the notion of cfq groups
blkio: Implement macro to traverse each service tree in group
blkio: Keep queue on service tree until we expire it
blkio: Introduce the root service tree for cfq groups
blkio: Introduce blkio controller cgroup interface
blkio: Introduce per cfq group weights and vdisktime calculations
blkio: Implement per cfq group latency target and busy queue avg
blkio: Group time used accounting and workload context save restore
blkio: Dynamic cfq group creation based on cgroup tasks belongs to
blkio: Take care of cgroup deletion and cfq group reference counting
blkio: Some debugging aids for CFQ
blkio: Export disk time and sectors used by a group to user space
blkio: Provide some isolation between groups
blkio: Drop the reference to queue once the task changes cgroup
blkio: Propagate cgroup weight updation to cfq groups
blkio: Wait for cfq queue to get backlogged if group is empty
blkio: Determine async workload length based on total number of queues
blkio: Implement group_isolation tunable
blkio: Wait on sync-noidle queue even if rq_noidle = 1
blkio: Documentation
blkio: Export some symbols from blkio as its user CFQ can be a module
blkio: Implement dynamic io controlling policy registration
blkio: Allow CFQ group IO scheduling even when CFQ is a module

Wu Fengguang (3):
writeback: remove the always false bdi_cap_writeback_dirty() test
writeback: introduce wbc.for_background
writeback: remove unused nonblocking and congestion checks

.../blockdev/drbd/DRBD-8.3-data-packets.svg | 588 +++
Documentation/blockdev/drbd/DRBD-data-packets.svg | 459 ++
Documentation/blockdev/drbd/README.txt | 16 +
Documentation/blockdev/drbd/conn-states-8.dot | 18 +
Documentation/blockdev/drbd/disk-states-8.dot | 16 +
.../drbd/drbd-connection-state-overview.dot | 85 +
Documentation/blockdev/drbd/node-states-8.dot | 14 +
Documentation/cgroups/blkio-controller.txt | 135 +
MAINTAINERS | 13 +
arch/alpha/include/asm/cacheflush.h | 1 +
arch/arm/include/asm/cacheflush.h | 1 +
arch/avr32/include/asm/cacheflush.h | 1 +
arch/blackfin/include/asm/cacheflush.h | 2 +
arch/cris/include/asm/cacheflush.h | 1 +
arch/frv/include/asm/cacheflush.h | 1 +
arch/h8300/include/asm/cacheflush.h | 1 +
arch/ia64/include/asm/cacheflush.h | 1 +
arch/m32r/include/asm/cacheflush.h | 3 +
arch/m68k/include/asm/cacheflush_mm.h | 1 +
arch/m68k/include/asm/cacheflush_no.h | 1 +
arch/microblaze/include/asm/cacheflush.h | 1 +
arch/mips/include/asm/cacheflush.h | 1 +
arch/mn10300/include/asm/cacheflush.h | 1 +
arch/parisc/include/asm/cacheflush.h | 1 +
arch/powerpc/include/asm/cacheflush.h | 1 +
arch/s390/include/asm/cacheflush.h | 1 +
arch/score/include/asm/cacheflush.h | 1 +
arch/sh/include/asm/cacheflush.h | 1 +
arch/sparc/include/asm/cacheflush_32.h | 1 +
arch/sparc/include/asm/cacheflush_64.h | 1 +
arch/x86/include/asm/cacheflush.h | 1 +
arch/xtensa/include/asm/cacheflush.h | 1 +
block/Kconfig | 22 +
block/Kconfig.iosched | 43 +-
block/Makefile | 2 +-
block/as-iosched.c | 1520 -------
block/blk-cgroup.c | 360 ++
block/blk-cgroup.h | 127 +
block/blk-core.c | 19 +
block/blk-ioc.c | 12 +-
block/blk-settings.c | 51 +-
block/blk-sysfs.c | 33 +
block/bsg.c | 3 +-
block/cfq-iosched.c | 1492 ++++++-
block/compat_ioctl.c | 2 +
block/elevator.c | 10 +-
block/genhd.c | 12 +
block/ioctl.c | 2 +
block/scsi_ioctl.c | 6 +-
drivers/block/Kconfig | 2 +
drivers/block/Makefile | 1 +
drivers/block/cciss.c | 544 ++--
drivers/block/cciss.h | 18 +-
drivers/block/cciss_cmd.h | 7 +-
drivers/block/cciss_scsi.c | 4 +-
drivers/block/drbd/Kconfig | 71 +
drivers/block/drbd/Makefile | 5 +
drivers/block/drbd/drbd_actlog.c | 1424 +++++++
drivers/block/drbd/drbd_bitmap.c | 1327 ++++++
drivers/block/drbd/drbd_int.h | 2252 ++++++++++
drivers/block/drbd/drbd_main.c | 3699 ++++++++++++++++
drivers/block/drbd/drbd_nl.c | 2364 +++++++++++
drivers/block/drbd/drbd_proc.c | 265 ++
drivers/block/drbd/drbd_receiver.c | 4426 ++++++++++++++++++++
drivers/block/drbd/drbd_req.c | 1125 +++++
drivers/block/drbd/drbd_req.h | 326 ++
drivers/block/drbd/drbd_strings.c | 113 +
drivers/block/drbd/drbd_vli.h | 351 ++
drivers/block/drbd/drbd_worker.c | 1512 +++++++
drivers/block/drbd/drbd_wrappers.h | 91 +
drivers/block/ps3vram.c | 10 +-
drivers/mtd/mtd_blkdevs.c | 2 +
drivers/staging/pohmelfs/inode.c | 10 -
fs/aio.c | 62 +-
fs/bio.c | 12 +
fs/block_dev.c | 12 +-
fs/direct-io.c | 10 +-
fs/fs-writeback.c | 28 +-
fs/nfs/write.c | 2 +-
fs/partitions/check.c | 12 +
fs/partitions/efi.c | 30 +-
fs/partitions/efi.h | 8 +-
fs/read_write.c | 2 -
fs/splice.c | 24 +-
fs/xfs/linux-2.6/xfs_aops.c | 9 +-
include/asm-generic/cacheflush.h | 1 +
include/linux/backing-dev.h | 13 +
include/linux/bio.h | 20 +-
include/linux/blkdev.h | 56 +-
include/linux/cgroup_subsys.h | 6 +
include/linux/connector.h | 2 +
include/linux/drbd.h | 343 ++
include/linux/drbd_limits.h | 137 +
include/linux/drbd_nl.h | 137 +
include/linux/drbd_tag_magic.h | 83 +
include/linux/fs.h | 5 +-
include/linux/genhd.h | 1 +
include/linux/iocontext.h | 14 +-
include/linux/lru_cache.h | 294 ++
include/linux/writeback.h | 1 +
kernel/exit.c | 2 +-
kernel/fork.c | 3 +-
lib/Kconfig | 3 +
lib/Makefile | 2 +
lib/lru_cache.c | 560 +++
mm/backing-dev.c | 2 +-
mm/page-writeback.c | 12 -
107 files changed, 24811 insertions(+), 2132 deletions(-)
create mode 100644 Documentation/blockdev/drbd/DRBD-8.3-data-packets.svg
create mode 100644 Documentation/blockdev/drbd/DRBD-data-packets.svg
create mode 100644 Documentation/blockdev/drbd/README.txt
create mode 100644 Documentation/blockdev/drbd/conn-states-8.dot
create mode 100644 Documentation/blockdev/drbd/disk-states-8.dot
create mode 100644 Documentation/blockdev/drbd/drbd-connection-state-overview.dot
create mode 100644 Documentation/blockdev/drbd/node-states-8.dot
create mode 100644 Documentation/cgroups/blkio-controller.txt
delete mode 100644 block/as-iosched.c
create mode 100644 block/blk-cgroup.c
create mode 100644 block/blk-cgroup.h
create mode 100644 drivers/block/drbd/Kconfig
create mode 100644 drivers/block/drbd/Makefile
create mode 100644 drivers/block/drbd/drbd_actlog.c
create mode 100644 drivers/block/drbd/drbd_bitmap.c
create mode 100644 drivers/block/drbd/drbd_int.h
create mode 100644 drivers/block/drbd/drbd_main.c
create mode 100644 drivers/block/drbd/drbd_nl.c
create mode 100644 drivers/block/drbd/drbd_proc.c
create mode 100644 drivers/block/drbd/drbd_receiver.c
create mode 100644 drivers/block/drbd/drbd_req.c
create mode 100644 drivers/block/drbd/drbd_req.h
create mode 100644 drivers/block/drbd/drbd_strings.c
create mode 100644 drivers/block/drbd/drbd_vli.h
create mode 100644 drivers/block/drbd/drbd_worker.c
create mode 100644 drivers/block/drbd/drbd_wrappers.h
create mode 100644 include/linux/drbd.h
create mode 100644 include/linux/drbd_limits.h
create mode 100644 include/linux/drbd_nl.h
create mode 100644 include/linux/drbd_tag_magic.h
create mode 100644 include/linux/lru_cache.h
create mode 100644 lib/lru_cache.c

--
Jens Axboe



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