Unverified Commit 491f9044 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!5722 btrfs: don't abort filesystem when attempting to snapshot deleted subvolume 

Merge Pull Request from: @ci-robot 
 
PR sync from: Long Li <leo.lilong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/CVWDWQLIHRGWLU6JNWR7VZN6TB63WLDT/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9BV23 
 
Link:https://gitee.com/openeuler/kernel/pulls/5722

 

Reviewed-by: default avatarLiu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: default avatarZhang Changzhong <zhangchangzhong@huawei.com>
parents e89315eb b6fa4a8a

fs/btrfs/ioctl.c

+3 −0
Original line number Diff line number Diff line
@@ -768,6 +768,9 @@ static int create_snapshot(struct btrfs_root *root, struct inode *dir, 
	int ret;

	bool snapshot_force_cow = false;



	if (btrfs_root_refs(&root->root_item) == 0)

		return -ENOENT;



	if (!test_bit(BTRFS_ROOT_REF_COWS, &root->state))

		return -EINVAL;