[GIT PULL] block changes for 2.6.28

From: Jens Axboe
Date: Fri Oct 10 2008 - 04:10:18 EST

Hi Linus,

This is the bulk of the block layer changes for 2.6.28. As other git
trees are based on this (like SCSI), it would be good if you could merge
it sooner rather than later.

Please pull from:

git://git.kernel.dk/linux-2.6-block.git for-2.6.28


Aaron Carroll (4):
deadline-iosched: allow non-sequential batching
deadline-iosched: non-functional fixes
block: update documentation for deadline fifo_batch tunable
cfq-iosched: fix queue depth detection

Alberto Bertogli (1):
bio.h: Remove unused conditional code

Andrew Patterson (6):
Wrapper for lower-level revalidate_disk routines.
Adjust block device size after an online resize of a disk.
Check for device resize when rescanning partitions
SCSI sd driver calls revalidate_disk wrapper.
Added flush_disk to factor out common buffer cache flushing code.
Call flush_disk() after detecting an online resize.

Chris Lalancette (1):
block: Expand Xen blkfront for > 16 xvd

David Woodhouse (10):
Fix up comments about matching flags between bio and rq
Add 'discard' request handling
Let the block device know when sectors can be discarded
Support 'discard sectors' operation in translation layer support core
Support 'discard sectors' operation.
blktrace: support discard requests
blktrace: simplify flags handling in __blk_add_trace
Add BLKDISCARD ioctl to allow userspace to discard sectors
Allow elevators to sort/merge discard requests
Kill REQ_TYPE_FLUSH

Denis ChengRq (1):
block: mark bio_split_pool static

Elias Oltmanns (1):
block: Fix blk_start_queueing() to not kick a stopped queue

FUJITA Tomonori (19):
block: add gfp_mask argument to blk_rq_map_user and blk_rq_map_user_iov
block: introduce struct rq_map_data to use reserved pages
sg: convert the non-data path to use the block layer
sg: convert the direct IO path to use the block layer
sg: convert the indirect IO path to use the block layer
bio: convert bio_copy_kern to use bio_copy_user
block: add blk_rq_aligned helper function
sg: use blk_rq_aligned helper function
block: make blk_rq_map_user take a NULL user-space buffer
sg: set dxferp to NULL for READ with the older SG interface
sg: rename sg_cmd_done sg_rq_end_io
sg: remove SG_ALLOW_DIO_CODE define
sg: remove b_malloc_len in sg_scatter_hold struct
sg: remove __sg_start_req
sg: incorporate sg_build_direct into sg_start_req
sg: remove sg_write_xfer
sg: remove sg_read_xfer
sg: remove unnecessary blk_rq_unmap_user
fix an example of scatterlists handling in DMA-API.txt

Fernando Luis Vázquez Cao (1):
virtio_blk: use a wrapper function to access io context information of IO requests

Harvey Harrison (1):
block: kmalloc args reversed, small function definition fixes

Hugh Dickins (1):
block: adjust blkdev_issue_discard for swap

Jens Axboe (27):
block: add bio_has_data() to detect whether a bio carries data or not
block: use bio_has_data() to check for data carrying bio
block: use bio_has_data() in the IO completion path
highmem: use bio_has_data() in the bounce path
block: raid fixups for removal of bi_hw_segments
block: make bi_phys_segments an unsigned int instead of short
block: use linux/uaccess.h in elevator.c instead of asm variant
block: split softirq handling into blk-softirq.c
block: make kblockd_schedule_work() take the queue as parameter
block: add support for IO CPU affinity
block: inherit CPU completion on bio->rq and rq->rq merges
block: don't use bio_has_data() in the completion path
Change default value of CONFIG_DEBUG_BLOCK_EXT_DEVT to 'n'
block: update comment on end_request()
block: unify request timeout handling
block: add bio_kmalloc()
block: add fault injection mechanism for faking request timeouts
block: use rq complete marking in blk_abort_request()
block: cleanup some of the integrity stuff in blkdev.h
block: blk_cleanup_queue() should call blk_sync_queue()
block: add queue flag for SSD/non-rotational devices
libata: set queue SSD flag for SSD devices
block: as/cfq ssd idle check update
block: reserve some tags just for sync IO
blktrace: use BLKTRACE_BDEV_SIZE as the name size for setup structure
block: revert part of d7533ad0e132f92e75c1b2eb7c26387b25a583c1
block: add some comments around the bio read-write flags

Julia Lawall (1):
drivers/block: Use DIV_ROUND_UP

Keith Wansbrough (1):
floppy: support arbitrary first-sector numbers

Kiyoshi Ueda (9):
block: add request update interface
block: add request submission interface
block: add a queue flag for request stacking support
block: add lld busy state exporting interface
virtio_blk: change to use __blk_end_request()
memstick: change to use __blk_end_request()
gdrom: change to use __blk_end_request()
block: change elevator to use __blk_end_request()
block: remove end_{queued|dequeued}_request()

Martin K. Petersen (5):
block: Introduce integrity data ownership flag
block: Fix double put in blk_integrity_unregister
block: Switch blk_integrity_compare from bdev to gendisk
block: gendisk integrity wrapper
block: Find bio sector offset given idx and offset

Mike Anderson (2):
block: Add interface to abort queued requests
dm: Call blk_abort_queue on failed paths

Mikulas Patocka (2):
block: drop virtual merging accounting
drop vmerge accounting

OGAWA Hirofumi (1):
Use WRITE_BARRIER in blkdev_issue_flush(), not (1<<BIO_RW_BARRIER)

Randy Dunlap (3):
Add some block/ source files to the kernel-api docbook. Fix kernel-doc notation in them as needed. Fix changed function parameter names. Fix typos/spellos. In comments, change REQ_SPECIAL to REQ_TYPE_SPECIAL and REQ_BLOCK_PC to REQ_TYPE_BLOCK_PC.
block_dev: fix kernel-doc in new functions
doc/cdrom: Trvial documentation error, file not present

Sven Schuetz (1):
include blktrace_api.h in headers_install

Tejun Heo (32):
klist: don't iterate over deleted entries
driver-core: use klist for class device list and implement iterator
block: fix partition info printouts
block: don't grab block_class_lock unnecessarily
block: use class_dev_iterator instead of class_for_each_device()
block: allow deleting zero length partition
block: update add_partition() error handling
block: misc updates
block: make variable and argument names more consistent
block: don't depend on consecutive minor space
block: fix disk->part[] dereferencing race
block: fix diskstats access
block: implement extended dev numbers
block: adjust formatting for large minors and add ext_range sysfs attr
sd/ide-disk: apply extended minors to sd and ide
block: implement CONFIG_DEBUG_BLOCK_EXT_DEVT
block: implement and use {disk|part}_to_dev()
block: introduce partition 0
block: move capacity from disk to part0
block: move __dev from disk to part0
block: unify sysfs size node handling
block: move policy from disk to part0
block: move holder_dir from disk to part0
block: always set bdev->bd_part
block: kill GENHD_FL_FAIL and use part0->make_it_fail
block: move stats from disk to part0
block: make partition array dynamic
block: replace @ext_minors with GENHD_FL_EXT_DEVT
block: allow disk to have extended device number
block: don't test for partition size in bdget_disk() and blk_lookup_devt()
init: DEBUG_BLOCK_EXT_DEVT requires explicit root= param
block: fix duplicate headers for /proc/partitions

scameron@xxxxxxxxxxxxxxxxxxxxxxx (1):
cciss: Fix cciss SCSI rescan code to better notice device changes

xiphmont@xxxxxxxx (1):
SG_IO block filter whitelist missing MMC SET READ AHEAD command

Documentation/DMA-API.txt | 2 +-
Documentation/DocBook/kernel-api.tmpl | 4 +
Documentation/block/deadline-iosched.txt | 14 +-
Documentation/cdrom/ide-cd | 3 +-
block/Makefile | 4 +-
block/as-iosched.c | 14 +-
block/blk-barrier.c | 72 +++-
block/blk-core.c | 605 ++++++++++---------
block/blk-exec.c | 6 +-
block/blk-integrity.c | 33 +-
block/blk-map.c | 68 ++-
block/blk-merge.c | 129 +----
block/blk-settings.c | 43 ++-
block/blk-softirq.c | 175 ++++++
block/blk-sysfs.c | 35 +-
block/blk-tag.c | 22 +-
block/blk-timeout.c | 238 ++++++++
block/blk.h | 48 ++
block/blktrace.c | 32 +-
block/bsg.c | 6 +-
block/cfq-iosched.c | 57 ++-
block/cmd-filter.c | 9 +-
block/compat_ioctl.c | 1 +
block/deadline-iosched.c | 40 +-
block/elevator.c | 40 +-
block/genhd.c | 965 ++++++++++++++++++++----------
block/ioctl.c | 124 ++++-
block/scsi_ioctl.c | 8 +-
drivers/ata/libata-eh.c | 13 +-
drivers/ata/libata-scsi.c | 4 +
drivers/ata/libata.h | 2 +-
drivers/base/base.h | 2 +-
drivers/base/class.c | 136 ++++-
drivers/base/core.c | 6 +-
drivers/block/aoe/aoeblk.c | 6 +-
drivers/block/aoe/aoecmd.c | 19 +-
drivers/block/aoe/aoedev.c | 2 +-
drivers/block/cciss.c | 8 +-
drivers/block/cciss_scsi.c | 151 +++--
drivers/block/cciss_scsi.h | 4 +
drivers/block/cpqarray.c | 2 +-
drivers/block/floppy.c | 31 +-
drivers/block/nbd.c | 4 +-
drivers/block/pktcdvd.c | 4 +-
drivers/block/ps3disk.c | 11 +-
drivers/block/virtio_blk.c | 14 +-
drivers/block/xen-blkfront.c | 76 ++-
drivers/cdrom/cdrom.c | 2 +-
drivers/cdrom/gdrom.c | 4 +-
drivers/char/random.c | 6 +-
drivers/ide/ide-cd.c | 2 +-
drivers/ide/ide-disk.c | 15 +-
drivers/ide/ide-probe.c | 2 +-
drivers/md/dm-ioctl.c | 6 +-
drivers/md/dm-mpath.c | 15 +-
drivers/md/dm-stripe.c | 4 +-
drivers/md/dm.c | 40 +-
drivers/md/linear.c | 10 +-
drivers/md/md.c | 15 +-
drivers/md/multipath.c | 8 +-
drivers/md/raid0.c | 10 +-
drivers/md/raid1.c | 13 +-
drivers/md/raid10.c | 14 +-
drivers/md/raid5.c | 75 ++-
drivers/memstick/core/mspro_block.c | 4 +-
drivers/mmc/card/block.c | 2 +-
drivers/mtd/ftl.c | 24 +
drivers/mtd/mtd_blkdevs.c | 16 +
drivers/s390/block/dasd_proc.c | 3 +-
drivers/s390/block/dcssblk.c | 4 +-
drivers/scsi/aacraid/aachba.c | 2 +-
drivers/scsi/gdth.c | 60 ++-
drivers/scsi/gdth.h | 2 +-
drivers/scsi/gdth_proc.c | 66 --
drivers/scsi/gdth_proc.h | 3 -
drivers/scsi/ibmvscsi/ibmvscsi.c | 2 +-
drivers/scsi/ide-scsi.c | 2 +-
drivers/scsi/ipr.c | 3 +-
drivers/scsi/ips.c | 2 +-
drivers/scsi/libiscsi.c | 17 +-
drivers/scsi/libsas/sas_ata.c | 2 +-
drivers/scsi/libsas/sas_internal.h | 2 +-
drivers/scsi/libsas/sas_scsi_host.c | 30 +-
drivers/scsi/megaraid/megaraid_sas.c | 6 +-
drivers/scsi/ncr53c8xx.c | 4 +-
drivers/scsi/qla1280.c | 4 +-
drivers/scsi/qla4xxx/ql4_os.c | 4 +-
drivers/scsi/scsi.c | 92 +---
drivers/scsi/scsi_error.c | 90 +---
drivers/scsi/scsi_lib.c | 17 +-
drivers/scsi/scsi_priv.h | 7 +-
drivers/scsi/scsi_sysfs.c | 7 +-
drivers/scsi/scsi_tgt_lib.c | 2 +-
drivers/scsi/scsi_transport_fc.c | 6 +-
drivers/scsi/sd.c | 95 ++-
drivers/scsi/sg.c | 667 +++++----------------
drivers/scsi/sr.c | 7 +-
drivers/scsi/sym53c8xx_2/sym_glue.c | 4 +-
fs/bio-integrity.c | 29 +-
fs/bio.c | 297 ++++++----
fs/block_dev.c | 182 ++++--
fs/fat/fatent.c | 14 +
fs/partitions/check.c | 268 +++++----
fs/partitions/check.h | 4 +-
include/linux/Kbuild | 1 +
include/linux/ata.h | 6 +
include/linux/bio.h | 108 ++--
include/linux/blkdev.h | 151 +++--
include/linux/blktrace_api.h | 62 ++-
include/linux/device.h | 14 +-
include/linux/elevator.h | 9 +-
include/linux/fd.h | 8 +-
include/linux/fs.h | 9 +-
include/linux/genhd.h | 363 ++++++------
include/linux/klist.h | 3 +-
include/linux/major.h | 2 +
include/linux/mtd/blktrans.h | 2 +
include/scsi/scsi_cmnd.h | 3 -
include/scsi/scsi_host.h | 9 +-
include/scsi/scsi_transport.h | 3 +-
init/do_mounts.c | 4 +
lib/Kconfig.debug | 35 +-
lib/klist.c | 96 +++-
mm/bounce.c | 2 +-
124 files changed, 3838 insertions(+), 2637 deletions(-)
create mode 100644 block/blk-softirq.c
create mode 100644 block/blk-timeout.c

--
Jens Axboe

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