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authorMikulas Patocka <mpatocka@redhat.com>2009-07-23 20:30:37 +0100
committerAlasdair G Kergon <agk@redhat.com>2009-07-23 20:30:37 +0100
commit69885683d22d8c05910fd808c01fdce1322739b4 (patch)
treead890ab1f667b7528e347e1886a9b7daf6f6c168 /drivers/md/dm-raid1.c
parent4be3bd7849165e7efa6b0b35a23d6a3598d97465 (diff)
dm raid1: wake kmirrord when requeueing delayed bios after remote recovery
The recent commit 7513c2a761d69d2a93f17146b3563527d3618ba0 (dm raid1: add is_remote_recovering hook for clusters) changed do_writes() to update the ms->writes list but forgot to wake up kmirrord to process it. The rule is that when anything is being added on ms->reads, ms->writes or ms->failures and the list was empty before we must call wakeup_mirrord (for immediate processing) or delayed_wake (for delayed processing). Otherwise the bios could sit on the list indefinitely. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> CC: stable@kernel.org Signed-off-by: Alasdair G Kergon <agk@redhat.com>
Diffstat (limited to 'drivers/md/dm-raid1.c')
-rw-r--r--drivers/md/dm-raid1.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/md/dm-raid1.c b/drivers/md/dm-raid1.c
index ce8868c768c..42a3e4341d6 100644
--- a/drivers/md/dm-raid1.c
+++ b/drivers/md/dm-raid1.c
@@ -638,6 +638,7 @@ static void do_writes(struct mirror_set *ms, struct bio_list *writes)
spin_lock_irq(&ms->lock);
bio_list_merge(&ms->writes, &requeue);
spin_unlock_irq(&ms->lock);
+ delayed_wake(ms);
}
/*