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| author | Petr Vandrovec <[email protected]> | 2008-11-19 10:12:14 +0000 |
|---|---|---|
| committer | Jens Axboe <[email protected]> | 2008-12-03 11:41:20 +0000 |
| commit | 53cc0b2948bcb8a084982e6c1f9bd7b337e0df38 (patch) | |
| tree | e2d4ca231035de3a14f47b97f6c9196fc375340c /drivers/message/fusion/lsi/mpi_raid.h | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog (diff) | |
| download | kernel-53cc0b2948bcb8a084982e6c1f9bd7b337e0df38.tar.gz kernel-53cc0b2948bcb8a084982e6c1f9bd7b337e0df38.zip | |
When block layer fails to map iov, it calls bio_unmap_user to undo
mapping. Which is good if pages were mapped - but if they were provided
by someone else and just copied then bad things happen - pages are
released once here, and once by caller, leading to user triggerable BUG
at include/linux/mm.h:246.
Signed-off-by: Petr Vandrovec <[email protected]>
Signed-off-by: Jens Axboe <[email protected]>
Diffstat (limited to 'drivers/message/fusion/lsi/mpi_raid.h')
0 files changed, 0 insertions, 0 deletions