From: NeilBrown Date: Thu, 19 Jul 2012 05:59:18 +0000 (+1000) Subject: md/raid1: close some possible races on write errors during resync X-Git-Tag: v3.5~8^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=58e94ae18478c08229626daece2fc108a4a23261;p=pandora-kernel.git md/raid1: close some possible races on write errors during resync commit 4367af556133723d0f443e14ca8170d9447317cb md/raid1: clear bad-block record when write succeeds. Added a 'reschedule_retry' call possibility at the end of end_sync_write, but didn't add matching code at the end of sync_request_write. So if the writes complete very quickly, or scheduling makes it seem that way, then we can miss rescheduling the request and the resync could hang. Also commit 73d5c38a9536142e062c35997b044e89166e063b md: avoid races when stopping resync. Fix a race condition in this same code in end_sync_write but didn't make the change in sync_request_write. This patch updates sync_request_write to fix both of those. Patch is suitable for 3.1 and later kernels. Reported-by: Alexander Lyakas Original-version-by: Alexander Lyakas Cc: stable@vger.kernel.org Signed-off-by: NeilBrown --- Reading git-diff-tree failed