path: root/include/linux/raid/md_k.h
diff options
authorNeilBrown <neilb@suse.de>2009-01-09 08:31:11 +1100
committerNeilBrown <neilb@suse.de>2009-01-09 08:31:11 +1100
commit4044ba58dd15cb01797c4fd034f39ef4a75f7cc3 (patch)
treee1bea8143538fc3eaeeb8578c2f9231e32809a25 /include/linux/raid/md_k.h
parentmd: Allow md devices to be created by name. (diff)
md: don't retry recovery of raid1 that fails due to error on source drive.
If a raid1 has only one working drive and it has a sector which gives an error on read, then an attempt to recover onto a spare will fail, but as the single remaining drive is not removed from the array, the recovery will be immediately re-attempted, resulting in an infinite recovery loop. So detect this situation and don't retry recovery once an error on the lone remaining drive is detected. Allow recovery to be retried once every time a spare is added in case the problem wasn't actually a media error. Signed-off-by: NeilBrown <neilb@suse.de>
Diffstat (limited to 'include/linux/raid/md_k.h')
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/raid/md_k.h b/include/linux/raid/md_k.h
index dac4217194b8..9743e4dbc918 100644
--- a/include/linux/raid/md_k.h
+++ b/include/linux/raid/md_k.h
@@ -218,6 +218,9 @@ struct mddev_s
unsigned long recovery;
+ int recovery_disabled; /* if we detect that recovery
+ * will always fail, set this
+ * so we don't loop trying */
int in_sync; /* know to not need resync */
struct mutex reconfig_mutex;