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(parent: 905b029) | patch
raid5: set bio bi_vcnt 0 for discard request
authorShaohua Li <shli@kernel.org>
Sat, 19 Oct 2013 06:50:28 +0000 (14:50 +0800)
committerNeilBrown <neilb@suse.de>
Thu, 24 Oct 2013 01:57:36 +0000 (12:57 +1100)
commit37c61ff31e9b5e3fcf3cc6579f5c68f6ad40c4b1
tree531c906f33e284c2916213fb994b632b03ab885atree | snapshot
parent905b0297a9533d7a6ee00a01a990456636877dd6commit | diff
raid5: set bio bi_vcnt 0 for discard request

SCSI layer will add new payload for discard request. If two bios are merged
to one, the second bio has bi_vcnt 1 which is set in raid5. This will confuse
SCSI and cause oops.

Suitable for backport to 3.7+

Cc: stable@vger.kernel.org (v3.7+)
Reported-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Shaohua Li <shli@fusionio.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Acked-by: Martin K. Petersen <martin.petersen@oracle.com>
drivers/md/raid5.c diff | blob | history
Domain: SDK / Emulator;