From 9ed38ff53090856769b99e9d2f19740fb11e6956 Mon Sep 17 00:00:00 2001 From: Goldwyn Rodrigues Date: Fri, 14 Aug 2015 12:19:40 -0500 Subject: [PATCH] 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 Signed-off-by: NeilBrown --- drivers/md/md-cluster.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) 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 remove_suspend_info(struct md_cluster_info *cinfo, int slot) } -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 @@ static void process_suspend_info(struct md_cluster_info *cinfo, 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 @@ static void process_recvd_msg(struct mddev *mddev, struct cluster_msg *msg) 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: -- 2.7.4