From 4d26d32fe4dafd29e168addb7c11949a36e7e5f8 Mon Sep 17 00:00:00 2001
From: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Date: Mon, 23 Dec 2019 10:48:59 +0100
Subject: [PATCH] md: don't destroy serial_info_pool if serialize_policy is
true
Git-commit: 4d26d32fe4dafd29e168addb7c11949a36e7e5f8
Patch-mainline: v5.6-rc1
References: jsc#SLE-13984
The serial_info_pool is needed if array sets serialize_policy to
true, so don't destroy it.
Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Coly Li <colyli@suse.de>
---
drivers/md/md-bitmap.c | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/drivers/md/md-bitmap.c b/drivers/md/md-bitmap.c
index 212e75dfebb7..92f0d45946e8 100644
--- a/drivers/md/md-bitmap.c
+++ b/drivers/md/md-bitmap.c
@@ -1789,8 +1789,10 @@ void md_bitmap_destroy(struct mddev *mddev)
return;
md_bitmap_wait_behind_writes(mddev);
- mempool_destroy(mddev->serial_info_pool);
- mddev->serial_info_pool = NULL;
+ if (!mddev->serialize_policy) {
+ mempool_destroy(mddev->serial_info_pool);
+ mddev->serial_info_pool = NULL;
+ }
mutex_lock(&mddev->bitmap_info.mutex);
spin_lock(&mddev->lock);
@@ -2476,8 +2478,10 @@ backlog_store(struct mddev *mddev, const char *buf, size_t len)
mddev->bitmap_info.max_write_behind = backlog;
if (!backlog && mddev->serial_info_pool) {
/* serial_info_pool is not needed if backlog is zero */
- mempool_destroy(mddev->serial_info_pool);
- mddev->serial_info_pool = NULL;
+ if (!mddev->serialize_policy) {
+ mempool_destroy(mddev->serial_info_pool);
+ mddev->serial_info_pool = NULL;
+ }
} else if (backlog && !mddev->serial_info_pool) {
/* serial_info_pool is needed since backlog is not zero */
struct md_rdev *rdev;
--
2.26.2