[AFS]: Add "directory write" support.

Add support for the create, link, symlink, unlink, mkdir, rmdir and
rename VFS operations to the in-kernel AFS filesystem.

Also:

 (1) Fix dentry and inode revalidation.  d_revalidate should only look at
     state of the dentry.  Revalidation of the contents of an inode pointed to
     by a dentry is now separate.

 (2) Fix afs_lookup() to hash negative dentries as well as positive ones.

Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 7 insertions, 7 deletions

diff --git a/fs/afs/volume.c b/fs/afs/volume.c
index 15e13678c216..dd160cada45d 100644
--- a/fs/afs/volume.c
+++ b/fs/afs/volume.c
@@ -295,6 +295,7 @@ struct afs_server *afs_volume_pick_fileserver(struct afs_vnode *vnode)
  * - releases the ref on the server struct that was acquired by picking
  * - records result of using a particular server to access a volume
  * - return 0 to try again, 1 if okay or to issue error
+ * - the caller must release the server struct if result was 0
  */
 int afs_volume_release_fileserver(struct afs_vnode *vnode,
                                   struct afs_server *server,
@@ -312,7 +313,8 @@ int afs_volume_release_fileserver(struct afs_vnode *vnode,
         case 0:
                 server->fs_act_jif = jiffies;
                 server->fs_state = 0;
-                break;
+                _leave("");
+                return 1;
 
                 /* the fileserver denied all knowledge of the volume */
         case -ENOMEDIUM:
@@ -377,14 +379,12 @@ int afs_volume_release_fileserver(struct afs_vnode *vnode,
                 server->fs_act_jif = jiffies;
         case -ENOMEM:
         case -ENONET:
-                break;
+                /* tell the caller to accept the result */
+                afs_put_server(server);
+                _leave(" [local failure]");
+                return 1;
         }
 
-        /* tell the caller to accept the result */
-        afs_put_server(server);
-        _leave("");
-        return 1;
-
         /* tell the caller to loop around and try the next server */
 try_next_server_upw:
         up_write(&volume->server_sem);