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| author | Milan Broz <mbroz@redhat.com> | 2007-07-21 04:37:27 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-07-21 17:49:14 -0700 |
| commit | 80b16c192e469541263d6bfd9177662ceb632ecc (patch) | |
| tree | c6e8a0abc281eac6e8139b38c4152dc366693f13 /block | |
| parent | d3fec424b23c47686efcf3f2004c3f1c1cee4d9c (diff) | |
| download | blackbird-op-linux-80b16c192e469541263d6bfd9177662ceb632ecc.tar.gz blackbird-op-linux-80b16c192e469541263d6bfd9177662ceb632ecc.zip | |
dm io: fix panic on large request
Flush workqueue before releasing bioset and mopools in dm-crypt. There can
be finished but not yet released request.
Call chain causing oops:
run workqueue
dec_pending
bio_endio(...);
<remove device request - remove mempool>
mempool_free(io, cc->io_pool);
This usually happens when cryptsetup create temporary
luks mapping in the beggining of crypt device activation.
When dm-core calls destructor crypt_dtr, no new request
are possible.
Signed-off-by: Milan Broz <mbroz@redhat.com>
Cc: Chuck Ebbert <cebbert@redhat.com>
Cc: Patrick McHardy <kaber@trash.net>
Acked-by: Alasdair G Kergon <agk@redhat.com>
Cc: Christophe Saout <christophe@saout.de>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions
