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authorGuoqing Jiang <gqjiang@suse.com>2015-12-21 10:50:59 +1100
committerNeilBrown <neilb@suse.com>2016-01-06 11:38:36 +1100
commit659b254fa7392e32b59a30d4b61fb12c4cd440ff (patch)
tree7e9a11ac79c881e7b6f712e804d35fda95cfbb07 /drivers/md/md-cluster.c
parentac277c6a8a39bc50f891a3477625330c276bd7f5 (diff)
downloadop-kernel-dev-659b254fa7392e32b59a30d4b61fb12c4cd440ff.zip
op-kernel-dev-659b254fa7392e32b59a30d4b61fb12c4cd440ff.tar.gz
md-cluster: remove a disk asynchronously from cluster environment
For cluster raid, if one disk couldn't be reach in one node, then other nodes would receive the REMOVE message for the disk. In receiving node, we can't call md_kick_rdev_from_array to remove the disk from array synchronously since the disk might still be busy in this node. So let's set a ClusterRemove flag on the disk, then let the thread to do the removal job eventually. Signed-off-by: Guoqing Jiang <gqjiang@suse.com> Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com> Signed-off-by: NeilBrown <neilb@suse.com>
Diffstat (limited to 'drivers/md/md-cluster.c')
-rw-r--r--drivers/md/md-cluster.c7
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index e57bbfe..3fd7301 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -440,8 +440,11 @@ static void process_remove_disk(struct mddev *mddev, struct cluster_msg *msg)
struct md_rdev *rdev = md_find_rdev_nr_rcu(mddev,
le32_to_cpu(msg->raid_slot));
- if (rdev)
- md_kick_rdev_from_array(rdev);
+ if (rdev) {
+ set_bit(ClusterRemove, &rdev->flags);
+ set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
+ md_wakeup_thread(mddev->thread);
+ }
else
pr_warn("%s: %d Could not find disk(%d) to REMOVE\n",
__func__, __LINE__, le32_to_cpu(msg->raid_slot));
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