Unverified Commit 2e5e6e6f authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!15346 block: mark GFP_NOIO around sysfs ->store() 

Merge Pull Request from: @ci-robot 
 
PR sync from: Li Lingfeng <lilingfeng3@huawei.com>
https://mailweb.openeuler.org/archives/list/kernel@openeuler.org/message/646UQC55C7SDMIYA36PV755HXN6CK5TD/ 
 
https://gitee.com/src-openeuler/kernel/issues/IBPLKB 
 
Link:https://gitee.com/openeuler/kernel/pulls/15346

 

Reviewed-by: default avatarYu Kuai <yukuai3@huawei.com>
Reviewed-by: default avatarZhang Peng <zhangpeng362@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents f49757d1 8ea00501

block/blk-sysfs.c

+3 −0
Original line number Diff line number Diff line
@@ -773,13 +773,16 @@ queue_attr_store(struct kobject *kobj, struct attribute *attr, 
	struct queue_sysfs_entry *entry = to_queue(attr);

	struct gendisk *disk = container_of(kobj, struct gendisk, queue_kobj);

	struct request_queue *q = disk->queue;

	unsigned int noio_flag;

	ssize_t res;



	if (!entry->store)

		return -EIO;



	mutex_lock(&q->sysfs_lock);

	noio_flag = memalloc_noio_save();

	res = entry->store(q, page, length);

	memalloc_noio_restore(noio_flag);

	mutex_unlock(&q->sysfs_lock);

	return res;

}