zonefs: Clear inode information flags on inode creation

stable inclusion
from stable-v5.10.114
commit 5fef6df2731f7a044fc16e6a842b3deb0ee9bc42
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I5IY1V

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=5fef6df2731f7a044fc16e6a842b3deb0ee9bc42

--------------------------------

commit 694852ea upstream.

Ensure that the i_flags field of struct zonefs_inode_info is cleared to
0 when initializing a zone file inode, avoiding seeing the flag
ZONEFS_ZONE_OPEN being incorrectly set.

Fixes: b5c00e97 ("zonefs: open/close zone on file open/close")
Cc: <stable@vger.kernel.org>
Signed-off-by: NDamien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: NJohannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: NChaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: NHans Holmberg <hans.holmberg@wdc.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Acked-by: NXie XiuQi <xiexiuqi@huawei.com>

fs/zonefs/super.c

@@ -1163,6 +1163,7 @@ static struct inode *zonefs_alloc_inode(struct super_block *sb)
 	mutex_init(&zi->i_truncate_mutex);
 	init_rwsem(&zi->i_mmap_sem);
 	zi->i_wr_refcnt = 0;
+	zi->i_flags = 0;
 
 	return &zi->i_vnode;
 }