tree 84131d888f5ec610cc343ca7188a5d4044043c2b
parent c7a2bd19b7c1e0bd2c7604c53d2583e91e536948
author Jonathan Brassow <jbrassow@redhat.com> 1231211097 +0000
committer Alasdair G Kergon <agk@redhat.com> 1231211097 +0000

dm raid1: fix error count

Always increase the error count when I/O on a leg of a mirror fails.

The error count is used to decide whether to select an alternative
mirror leg.  If the target doesn't use the "handle_errors" feature, the
error count is not updated and the bio can get requeued forever by the
read callback.

Fix it by increasing error_count before the handle_errors feature
checking.

Cc: stable@kernel.org
Signed-off-by: Milan Broz <mbroz@redhat.com>
Signed-off-by: Jonathan Brassow <jbrassow@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>