[PATCH v2 4/4] md: remove redundant memalloc scope API usage

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From: Coly Li <colyli@xxxxxxx>

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@xxxxxxx>
Cc: Guoqing Jiang <guoqing.jiang@xxxxxxxxxxxxxxx>
---
 drivers/md/md.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/md/md.c b/drivers/md/md.c
index 1a8e1bb3a7f4..ef29f49a0f51 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -229,11 +229,9 @@ void mddev_create_serial_pool(struct mddev *mddev, struct md_rdev *rdev,
 	if (mddev->serial_info_pool == NULL) {
 		unsigned int noio_flag;
 
-		noio_flag = memalloc_noio_save();
 		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");
-- 
2.25.0




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