FUJITA Tomonori 30c00eda73 block: blk_rq_map_kern uses the bounce buffers for stack buffers ...

blk_rq_map_kern is used for kernel internal I/Os. Some callers use
this function with stack buffers but DMA to/from the stack buffers
leads to memory corruption on a non-coherent platform.

This patch make blk_rq_map_kern uses the bounce buffers if a caller
passes a stack buffer (on the all platforms for simplicity).

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Cc: Tejun Heo <htejun@gmail.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

2008-07-04 09:52:13 +02:00

..

as-iosched.c

as-iosched: properly protect ioc_gone and ioc count

2008-07-03 13:21:12 +02:00

blk-barrier.c

block: remove remaining __FUNCTION__ occurrences

2008-05-01 08:04:02 -07:00

blk-core.c

block: extend queue_flag bitops

2008-07-03 13:21:15 +02:00

blk-exec.c

block: make core bits checkpatch compliant

2008-02-01 09:26:33 +01:00

blk-integrity.c

block: integrity flags can't use bit ops on unsigned short

2008-07-03 13:21:15 +02:00

blk-ioc.c

cfq-iosched: fix RCU race in the cfq io_context destructor handling

2008-05-07 09:28:57 +02:00

blk-map.c

block: blk_rq_map_kern uses the bounce buffers for stack buffers

2008-07-04 09:52:13 +02:00

blk-merge.c

block: Block layer data integrity support

2008-07-03 13:21:13 +02:00

blk-settings.c

block: add blk_queue_update_dma_pad

2008-07-04 09:52:13 +02:00

blk-sysfs.c

block: sysfs store function needs to grab queue_lock and use queue_flag_*()

2008-05-07 09:09:39 +02:00

blk-tag.c

block: adjust tagging function queue bit locking

2008-05-07 09:27:43 +02:00

blk.h

block: Block layer data integrity support

2008-07-03 13:21:13 +02:00

blktrace.c

Added in user-injected messages into blk traces

2008-07-03 13:21:12 +02:00

bsg.c

allow userspace to modify scsi command filter on per device basis

2008-07-03 13:21:14 +02:00

cfq-iosched.c

cfq-iosched: get rid of enable_idle being unused warning

2008-07-03 13:21:14 +02:00

cmd-filter.c

cmdfilter: extend default read filter

2008-07-03 13:21:14 +02:00

compat_ioctl.c

Fix misuses of bdevname()

2008-05-13 08:02:26 -07:00

deadline-iosched.c

block: let elv_register() return void

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

elevator.c

block: request_module(): use format string

2008-07-03 13:21:15 +02:00

genhd.c

allow userspace to modify scsi command filter on per device basis

2008-07-03 13:21:14 +02:00

ioctl.c

compat_ioctl: move common block ioctls to compat_blkdev_ioctl

2007-10-10 09:26:00 +02:00

Kconfig

block: Block layer data integrity support

2008-07-03 13:21:13 +02:00

Kconfig.iosched

update I/O sched Kconfig help texts - CFQ is now default, not AS.

2007-02-17 20:08:22 +01:00

Makefile

allow userspace to modify scsi command filter on per device basis

2008-07-03 13:21:14 +02:00

noop-iosched.c

block: let elv_register() return void

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

scsi_ioctl.c

allow userspace to modify scsi command filter on per device basis

2008-07-03 13:21:14 +02:00