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-rw-r--r--drivers/md/raid5.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index b5742d07662d..7fde645d2e90 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -4191,7 +4191,7 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh,
/* now write out any block on a failed drive,
* or P or Q if they were recomputed
*/
- BUG_ON(s->uptodate < disks - 1); /* We don't need Q to recover */
+ dev = NULL;
if (s->failed == 2) {
dev = &sh->dev[s->failed_num[1]];
s->locked++;
@@ -4216,6 +4216,14 @@ static void handle_parity_checks6(struct r5conf *conf, struct stripe_head *sh,
set_bit(R5_LOCKED, &dev->flags);
set_bit(R5_Wantwrite, &dev->flags);
}
+ if (WARN_ONCE(dev && !test_bit(R5_UPTODATE, &dev->flags),
+ "%s: disk%td not up to date\n",
+ mdname(conf->mddev),
+ dev - (struct r5dev *) &sh->dev)) {
+ clear_bit(R5_LOCKED, &dev->flags);
+ clear_bit(R5_Wantwrite, &dev->flags);
+ s->locked--;
+ }
clear_bit(STRIPE_DEGRADED, &sh->state);
set_bit(STRIPE_INSYNC, &sh->state);