The patch titled
md: possible fix for unplug problem
has been removed from the -mm tree. Its filename is
md-possible-fix-for-unplug-problem.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
Subject: md: possible fix for unplug problem
From: NeilBrown <neilb@xxxxxxx>
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 <neilb@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxx>
---
drivers/md/raid5.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/md/raid5.c~md-possible-fix-for-unplug-problem drivers/md/raid5.c
--- a/drivers/md/raid5.c~md-possible-fix-for-unplug-problem
+++ a/drivers/md/raid5.c
@@ -270,7 +270,7 @@ 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
_
Patches currently in -mm which might be from neilb@xxxxxxx are
origin.patch
git-klibc.patch
md-dm-reduce-stack-usage-with-stacked-block-devices.patch
-
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