From 3024ba2d6c5573b4797e62006d98f17f47f7d103 Mon Sep 17 00:00:00 2001
From: Coly Li <colyli@suse.de>
Date: Thu, 9 Apr 2020 22:17:23 +0800
Subject: [PATCH] md: remove redundant memalloc scope API usage
Git-commit: 3024ba2d6c5573b4797e62006d98f17f47f7d103
Patch-mainline: v5.8-rc1
References: jsc#SLE-13984
In mddev_create_serial_pool(), memalloc scope APIs memalloc_noio_save()
and memalloc_noio_restore() are used when allocating memory by calling
mempool_create_kmalloc_pool(). After adding the memalloc scope APIs in
raid array suspend context, it is unncessary to explicitly call them
around mempool_create_kmalloc_pool() any longer.
This patch removes the redundant memalloc scope APIs in
mddev_create_serial_pool().
Signed-off-by: Coly Li <colyli@suse.de>
Cc: Guoqing Jiang <guoqing.jiang@cloud.ionos.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
---
drivers/md/md.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1b3316c79b7b..7b2ac5f23260 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -228,13 +228,13 @@ void mddev_create_serial_pool(struct mddev *mddev, struct md_rdev *rdev,
goto abort;
if (mddev->serial_info_pool == NULL) {
- unsigned int noio_flag;
-
- noio_flag = memalloc_noio_save();
+ /*
+ * already in memalloc noio context by
+ * mddev_suspend()
+ */
mddev->serial_info_pool =
mempool_create_kmalloc_pool(NR_SERIAL_INFOS,
sizeof(struct serial_info));
- memalloc_noio_restore(noio_flag);
if (!mddev->serial_info_pool) {
rdevs_uninit_serial(mddev);
pr_err("can't alloc memory pool for serialization\n");
--
2.26.2