From 353c2ea735e4b54fb6250861e67b51b1bcb47198 Mon Sep 17 00:00:00 2001
From: Anand Jain <anand.jain@oracle.com>
Date: Fri, 12 Apr 2019 16:02:57 +0800
Subject: [PATCH] btrfs: remove redundant readonly root check in
btrfs_setxattr_trans
btrfs_setxattr_trans() is called by 5 functions as below and all of them
do updates. None of them would be roun on a read-only root.
So its ok to remove the readonly root check here as it's a high-level
conditon.
1.
__btrfs_set_acl()
btrfs_init_acl()
btrfs_init_inode_security()
2.
__btrfs_set_acl()
btrfs_set_acl()
3.
btrfs_set_prop()
btrfs_set_prop_trans()
/ \
btrfs_ioctl_setflags() btrfs_xattr_handler_set_prop()
4.
btrfs_xattr_handler_set()
5.
btrfs_initxattrs()
btrfs_xattr_security_init()
btrfs_init_inode_security()
Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
fs/btrfs/xattr.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/fs/btrfs/xattr.c b/fs/btrfs/xattr.c
index b2b68676ec52..4c447b1f32e5 100644
--- a/fs/btrfs/xattr.c
+++ b/fs/btrfs/xattr.c
@@ -226,9 +226,6 @@ int btrfs_setxattr_trans(struct btrfs_trans_handle *trans,
struct btrfs_root *root = BTRFS_I(inode)->root;
int ret;
- if (btrfs_root_readonly(root))
- return -EROFS;
-
if (trans)
return btrfs_setxattr(trans, inode, name, value, size, flags);