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btrfs: Return EXDEV for cross file system snapshot

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EXDEV seems an appropriate error if an operation fails bacause it
crosses file system boundaries.

Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Josef Bacik <jbacik@fb.com>
This commit is contained in:
Kusanagi Kouichi 2014-01-30 16:32:02 +09:00 committed by Josef Bacik
parent 827463c49f
commit 23ad5b17dc
1 changed files with 1 additions and 1 deletions
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2
fs/btrfs/ioctl.c
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@ -1573,7 +1573,7 @@ static noinline int btrfs_ioctl_snap_create_transid(struct file *file,
if (src_inode->i_sb != file_inode(file)->i_sb) {
btrfs_info(BTRFS_I(src_inode)->root->fs_info,
"Snapshot src from another FS");
ret = -EINVAL;
ret = -EXDEV;
} else if (!inode_owner_or_capable(src_inode)) {
/*
* Subvolume creation is not restricted, but snapshots