afs: Implement sillyrename for unlink and rename
Implement sillyrename for AFS unlink and rename, using the NFS variant
implementation as a basis.
Note that the asynchronous file locking extender/releaser has to be
notified with a state change to stop it complaining if there's a race
between that and the actual file deletion.
A tracepoint, afs_silly_rename, is also added to note the silly rename and
the cleanup. The afs_edit_dir tracepoint is given some extra reason
indicators and the afs_flock_ev tracepoint is given a silly-delete file
lock cancellation indicator.
Signed-off-by: David Howells <dhowells@redhat.com>
diff --git a/fs/afs/inode.c b/fs/afs/inode.c
index 9cedc3f..3eef20f 100644
--- a/fs/afs/inode.c
+++ b/fs/afs/inode.c
@@ -543,6 +543,8 @@ void afs_evict_inode(struct inode *inode)
#endif
afs_put_permits(rcu_access_pointer(vnode->permit_cache));
+ key_put(vnode->silly_key);
+ vnode->silly_key = NULL;
key_put(vnode->lock_key);
vnode->lock_key = NULL;
_leave("");