Commit 6980d29c authored by Chao Yu's avatar Chao Yu Committed by Damien Le Moal
Browse files

zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone() 



In zonefs_open_zone(), if opened zone count is larger than
.s_max_open_zones threshold, we missed to recover .i_wr_refcnt,
fix this.

Fixes: b5c00e97 ("zonefs: open/close zone on file open/close")
Cc: <stable@vger.kernel.org>
Signed-off-by: default avatarChao Yu <yuchao0@huawei.com>
Signed-off-by: default avatarDamien Le Moal <damien.lemoal@wdc.com>
parent ebfd68cd

fs/zonefs/super.c

+3 −4
Original line number Diff line number Diff line
@@ -1040,9 +1040,7 @@ static int zonefs_open_zone(struct inode *inode) 


	mutex_lock(&zi->i_truncate_mutex);



	zi->i_wr_refcnt++;

	if (zi->i_wr_refcnt == 1) {



	if (!zi->i_wr_refcnt) {

		if (atomic_inc_return(&sbi->s_open_zones) > sbi->s_max_open_zones) {

			atomic_dec(&sbi->s_open_zones);

			ret = -EBUSY;
@@ -1052,7 +1050,6 @@ static int zonefs_open_zone(struct inode *inode) 
		if (i_size_read(inode) < zi->i_max_size) {

			ret = zonefs_zone_mgmt(inode, REQ_OP_ZONE_OPEN);

			if (ret) {

				zi->i_wr_refcnt--;

				atomic_dec(&sbi->s_open_zones);

				goto unlock;

			}
@@ -1060,6 +1057,8 @@ static int zonefs_open_zone(struct inode *inode) 
		}

	}



	zi->i_wr_refcnt++;



unlock:

	mutex_unlock(&zi->i_truncate_mutex);