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From: Anand Jain <anand.jain@oracle.com>
To: linux-btrfs@vger.kernel.org
Subject: [PATCH 4/6] btrfs: remove redundant readonly root check in btrfs_setxattr_trans
Date: Fri, 12 Apr 2019 16:02:57 +0800	[thread overview]
Message-ID: <20190412080259.5192-5-anand.jain@oracle.com> (raw)
In-Reply-To: <20190412080259.5192-1-anand.jain@oracle.com>

btrfs_setxattr_trans() is called by 5 threads as below and all of them are
write based threads, which won't run for a readonly root. So its ok to
remove the readonly root check here.

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>
---
 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);
 
-- 
2.17.1


  parent reply	other threads:[~2019-04-12  8:03 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-04-12  8:02 [PATCH 0/6] cleanup property and extended attribute set Anand Jain
2019-04-12  8:02 ` [PATCH 1/6] btrfs: rename btrfs_setxattr to btrfs_setxattr_trans Anand Jain
2019-04-12  8:02 ` [PATCH 2/6] btrfs: rename do_setxattr to btrfs_setxattr Anand Jain
2019-04-12  8:02 ` [PATCH 3/6] btrfs: declare btrfs_setxattr as a non static function Anand Jain
2019-04-12  8:02 ` Anand Jain [this message]
2019-04-12  8:02 ` [PATCH 5/6] btrfs: split thread with trans to use btrfs_setxattr Anand Jain
2019-04-12  8:02 ` [PATCH 6/6] btrfs: cleanup btrfs_setxattr_trans drop trans arg Anand Jain
2019-04-12  9:33 ` [PATCH 0/6] cleanup property and extended attribute set Anand Jain
2019-04-15 19:01 ` David Sterba
2019-04-15 22:01   ` Anand Jain
2019-04-17  9:31     ` David Sterba
2019-04-17 10:24       ` Anand Jain
2019-04-17 10:40       ` Anand Jain

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