md-cluster: complete all write requests before adding suspend_info
process_suspend_info - which handles the RESYNCING request - must not
reply until all writes which were initiated before the request arrived,
have completed.
As a by-product, all process_* functions now take mddev as their
first arguement making it uniform.
Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.com>
Signed-off-by: NeilBrown <neilb@suse.com>
diff --git a/drivers/md/md-cluster.c b/drivers/md/md-cluster.c
index 11e3bc9..4a965f2 100644
--- a/drivers/md/md-cluster.c
+++ b/drivers/md/md-cluster.c
@@ -374,9 +374,10 @@
}
-static void process_suspend_info(struct md_cluster_info *cinfo,
+static void process_suspend_info(struct mddev *mddev,
int slot, sector_t lo, sector_t hi)
{
+ struct md_cluster_info *cinfo = mddev->cluster_info;
struct suspend_info *s;
if (!hi) {
@@ -389,6 +390,8 @@
s->slot = slot;
s->lo = lo;
s->hi = hi;
+ mddev->pers->quiesce(mddev, 1);
+ mddev->pers->quiesce(mddev, 0);
spin_lock_irq(&cinfo->suspend_lock);
/* Remove existing entry (if exists) before adding */
__remove_suspend_info(cinfo, slot);
@@ -457,7 +460,7 @@
case RESYNCING:
pr_info("%s: %d Received message: RESYNCING from %d\n",
__func__, __LINE__, msg->slot);
- process_suspend_info(mddev->cluster_info, msg->slot,
+ process_suspend_info(mddev, msg->slot,
msg->low, msg->high);
break;
case NEWDISK: