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| author | FUJITA Tomonori <[email protected]> | 2008-07-04 09:31:11 +0200 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2008-07-04 09:52:13 +0200 |
| commit | 30c00eda73d5db5bd64dd0c370161abd8df5ba4a (patch) | |
| tree | 87b5a34323eb98edf504e51b2d8e0291559579e3 /net/unix/sysctl_net_unix.c | |
| parent | 27f8221af406e43b529a5425bc99c9b1e9bdf521 (diff) | |
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 <[email protected]>
Cc: Bartlomiej Zolnierkiewicz <[email protected]>
Cc: Thomas Bogendoerfer <[email protected]>
Cc: Tejun Heo <[email protected]>
Cc: James Bottomley <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'net/unix/sysctl_net_unix.c')
0 files changed, 0 insertions, 0 deletions