diff options
| author | Chao Yu <yuchao0@huawei.com> | 2021-03-16 20:30:26 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-25 09:04:05 +0100 |
| commit | 78486cf1f31e3f646a981f91f4be3db62689265e (patch) | |
| tree | 1d4b7706b310655f9f204929ee38249c147cf966 /fs/zonefs | |
| parent | 9c1c5e81a00250628b1dea74b815fc641ee77952 (diff) | |
| download | linux-stable-78486cf1f31e3f646a981f91f4be3db62689265e.tar.gz linux-stable-78486cf1f31e3f646a981f91f4be3db62689265e.tar.bz2 linux-stable-78486cf1f31e3f646a981f91f4be3db62689265e.zip | |
zonefs: fix to update .i_wr_refcnt correctly in zonefs_open_zone()
commit 6980d29ce4da223ad7f0751c7f1d61d3c6b54ab3 upstream.
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: b5c00e975779 ("zonefs: open/close zone on file open/close")
Cc: <stable@vger.kernel.org>
Signed-off-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/zonefs')
| -rw-r--r-- | fs/zonefs/super.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/fs/zonefs/super.c b/fs/zonefs/super.c index b8f3444497b2..2243dc1fb48f 100644 --- a/fs/zonefs/super.c +++ b/fs/zonefs/super.c @@ -1032,9 +1032,7 @@ 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; @@ -1044,7 +1042,6 @@ 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; } @@ -1052,6 +1049,8 @@ static int zonefs_open_zone(struct inode *inode) } } + zi->i_wr_refcnt++; + unlock: mutex_unlock(&zi->i_truncate_mutex); |