Tejun Heo 40b01b9bbd block: update bio according to DMA alignment padding ...

DMA start address and transfer size alignment for PC requests are
achieved using bio_copy_user() instead of bio_map_user().  This works
because bio_copy_user() always uses full pages and block DMA alignment
isn't allowed to go over PAGE_SIZE.

However, the implementation didn't update the last bio of the request
to make this padding visible to lower layers.  This patch makes
blk_rq_map_user() extend the last bio such that it includes the
padding area and the size of area pointed to by the request is
properly aligned.

Signed-off-by: Tejun Heo <htejun@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2008-02-19 11:35:38 +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

make blk-core.c:request_cachep static again

2008-02-19 10:04:00 +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: update bio according to DMA alignment padding

2008-02-19 11:35:38 +01:00

blk-merge.c

Enhanced partition statistics: update partition statitics

2008-02-08 12:41:56 +01:00

blk-settings.c

make blk_settings_init() static

2008-02-19 10:04:00 +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

[SCSI] bsg: copy the cmd_type field to the subordinate request for bidi

2008-01-30 13:14:26 -06:00

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: use jiffies conversion functions in scsi_ioctl.c

2007-12-18 08:29:28 +01:00