tree 12dbe7afc10da3eee7ce5dfcf389b655634737e0
parent becfd1f37544798cbdfd788f32c827160fab98c1
author Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> 1296306807 +0530
committer Al Viro <viro@zeniv.linux.org.uk> 1300170104 -0400

fs: Don't allow to create hardlink for deleted file

Add inode->i_nlink == 0 check in VFS. Some of the file systems
do this internally. A followup patch will remove those instance.
This is needed to ensure that with link by handle we don't allow
to create hardlink of an unlinked file. The check also prevent a race
between unlink and link

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>