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Symlinks' device numbers differ from regular files'

Message ID 4CE5DB64.3010102@cn.fujitsu.com (mailing list archive)
State New, archived
Headers show

Commit Message

Li Zefan Nov. 19, 2010, 2:05 a.m. UTC 
None
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Patch

=============

[PATCH] btrfs: Show device attr correctly for symlinks

Symlinks and files of other types show different device numbers, though
they are on the same partition:

 $ touch tmp; ln -s tmp tmp2; stat tmp tmp2
   File: `tmp'
   Size: 0         	Blocks: 0          IO Block: 4096   regular empty file
 Device: 15h/21d	Inode: 984027      Links: 1
 --- snip ---
   File: `tmp2' -> `tmp'
   Size: 3         	Blocks: 0          IO Block: 4096   symbolic link
 Device: 13h/19d	Inode: 984028      Links: 1

Reported-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 5132c9a..d10b6d4 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -7139,6 +7139,7 @@  static const struct inode_operations btrfs_symlink_inode_operations = {
 	.readlink	= generic_readlink,
 	.follow_link	= page_follow_link_light,
 	.put_link	= page_put_link,
+	.getattr	= btrfs_getattr,
 	.permission	= btrfs_permission,
 	.setxattr	= btrfs_setxattr,
 	.getxattr	= btrfs_getxattr,