I have reports of a problem with raid5 which turns out to be because
the raid5 device gets stuck in a 'plugged' state. This shouldn't be
able to happen as 3msec after it gets plugged it should get unplugged.
However it happens none-the-less. This patch fixes the problem and is
a reasonable thing to do, though it might hurt performance slightly in
some cases.
Until I can find the real problem, we should probably have this
workaround in place.
Signed-off-by: Neil Brown <[email protected]>
### Diffstat output
./drivers/md/raid5.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff .prev/drivers/md/raid5.c ./drivers/md/raid5.c
--- .prev/drivers/md/raid5.c 2006-06-27 12:15:17.000000000 +1000
+++ ./drivers/md/raid5.c 2006-06-27 12:16:41.000000000 +1000
@@ -271,7 +271,7 @@ static struct stripe_head *get_active_st
< (conf->max_nr_stripes *3/4)
|| !conf->inactive_blocked),
conf->device_lock,
- unplug_slaves(conf->mddev)
+ raid5_unplug_device(conf->mddev->queue)
);
conf->inactive_blocked = 0;
} else
-
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