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e3790c7d42
linux/block
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Tejun Heo e3790c7d42 block: separate out padding from alignment 
Block layer alignment was used for two different purposes - memory
alignment and padding.  This causes problems in lower layers because
drivers which only require memory alignment ends up with adjusted
rq->data_len.  Separate out padding such that padding occurs iff
driver explicitly requests it.

Tomo: restorethe code to update bio in blk_rq_map_user
      introduced by the commit 40b01b9bbd
      according to padding alignment.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-03-04 11:18:17 +01:00
..
as-iosched.c block: kill swap_io_context() 2008-02-01 11:34:49 +01:00
blk-barrier.c block: make core bits checkpatch compliant 2008-02-01 09:26:33 +01:00
blk-core.c block: restore the meaning of rq->data_len to the true data length 2008-03-04 11:17:11 +01:00
blk-exec.c block: make core bits checkpatch compliant 2008-02-01 09:26:33 +01:00
blk-ioc.c cfq-iosched: add hlist for browsing parallel to the radix tree 2008-02-19 10:04:00 +01:00
blk-map.c block: separate out padding from alignment 2008-03-04 11:18:17 +01:00
blk-merge.c block: restore the meaning of rq->data_len to the true data length 2008-03-04 11:17:11 +01:00
blk-settings.c block: separate out padding from alignment 2008-03-04 11:18:17 +01:00
blk-sysfs.c block: make core bits checkpatch compliant 2008-02-01 09:26:33 +01:00
blk-tag.c block: make core bits checkpatch compliant 2008-02-01 09:26:33 +01:00
blk.h block: ll_rw_blk.c split, add blk-merge.c 2008-01-29 21:55:12 +01:00
blktrace.c blktrace: Add blktrace ioctls to SCSI generic devices 2008-01-28 10:04:46 +01:00
bsg.c block: restore the meaning of rq->data_len to the true data length 2008-03-04 11:17:11 +01:00
cfq-iosched.c cfq-iosched: add hlist for browsing parallel to the radix tree 2008-02-19 10:04:00 +01:00
compat_ioctl.c blktrace: Add blktrace ioctls to SCSI generic devices 2008-01-28 10:04:46 +01:00
deadline-iosched.c block: let elv_register() return void 2007-12-18 08:29:28 +01:00
elevator.c elevator: make elevator_get() attempt to load the appropriate module 2008-02-19 10:20:37 +01:00
genhd.c Enhanced partition statistics: procfs 2008-02-08 12:42:00 +01:00
ioctl.c compat_ioctl: move common block ioctls to compat_blkdev_ioctl 2007-10-10 09:26:00 +02:00
Kconfig Only enable BLOCK_COMPAT if COMPAT is needed 2007-10-12 17:58:36 -07:00
Kconfig.iosched update I/O sched Kconfig help texts - CFQ is now default, not AS. 2007-02-17 20:08:22 +01:00
Makefile block: ll_rw_blk.c split, add blk-merge.c 2008-01-29 21:55:12 +01:00
noop-iosched.c block: let elv_register() return void 2007-12-18 08:29:28 +01:00
scsi_ioctl.c block: restore the meaning of rq->data_len to the true data length 2008-03-04 11:17:11 +01:00