[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, 2 insertions, 0 deletions

diff --git a/fs/afs/server.c b/fs/afs/server.c
index bde6125c2f22..96bb23b476a2 100644
--- a/fs/afs/server.c
+++ b/fs/afs/server.c
@@ -223,6 +223,8 @@ void afs_put_server(struct afs_server *server)
 
         _enter("%p{%d}", server, atomic_read(&server->usage));
 
+        _debug("PUT SERVER %d", atomic_read(&server->usage));
+
         ASSERTCMP(atomic_read(&server->usage), >, 0);
 
         if (likely(!atomic_dec_and_test(&server->usage))) {