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authorJeff Garzik <jeff@garzik.org>2006-08-29 17:20:55 -0400
committerJeff Garzik <jeff@garzik.org>2006-08-29 17:20:55 -0400
commita422142cfdf90d889d8d3e2affb8311a381530b7 (patch)
treebde7e2c7a3ee8bca649aecd877a9ee1593f4223e /drivers/md/md.c
parent6fc47e31c0e802d205d67e644f654532e5d365d5 (diff)
parent60d4684068ff1eec78f55b5888d0bd2d4cca1520 (diff)
Merge branch 'master' into upstream
Diffstat (limited to 'drivers/md/md.c')
-rw-r--r--drivers/md/md.c13
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/md/md.c b/drivers/md/md.c
index b6d16022a53..8dbab2ef388 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -1597,6 +1597,19 @@ void md_update_sb(mddev_t * mddev)
repeat:
spin_lock_irq(&mddev->write_lock);
+
+ if (mddev->degraded && mddev->sb_dirty == 3)
+ /* If the array is degraded, then skipping spares is both
+ * dangerous and fairly pointless.
+ * Dangerous because a device that was removed from the array
+ * might have a event_count that still looks up-to-date,
+ * so it can be re-added without a resync.
+ * Pointless because if there are any spares to skip,
+ * then a recovery will happen and soon that array won't
+ * be degraded any more and the spare can go back to sleep then.
+ */
+ mddev->sb_dirty = 1;
+
sync_req = mddev->in_sync;
mddev->utime = get_seconds();
if (mddev->sb_dirty == 3)