Commit 43220aa0 authored by NeilBrown's avatar NeilBrown

md/raid5: fix a hang on device failure.

Waiting for a 'blocked' rdev to become unblocked in the raid5d thread
cannot work with internal metadata as it is the raid5d thread which
will clear the blocked flag.
This wasn't a problem in 3.0 and earlier as we only set the blocked
flag when external metadata was used then.
However we now set it always, so we need to be more careful.
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
parent 7da64a0a
......@@ -3336,7 +3336,7 @@ static void handle_stripe(struct stripe_head *sh)
finish:
/* wait for this device to become unblocked */
if (unlikely(s.blocked_rdev))
if (conf->mddev->external && unlikely(s.blocked_rdev))
md_wait_for_blocked_rdev(s.blocked_rdev, conf->mddev);
if (s.handle_bad_blocks)
......
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