[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, 3 insertions, 3 deletions

diff --git a/fs/afs/super.c b/fs/afs/super.c
index 497350a5463b..cebd03c91f57 100644
--- a/fs/afs/super.c
+++ b/fs/afs/super.c
@@ -331,7 +331,7 @@ static int afs_fill_super(struct super_block *sb, void *data)
         fid.vid         = as->volume->vid;
         fid.vnode       = 1;
         fid.unique      = 1;
-        inode = afs_iget(sb, params->key, &fid);
+        inode = afs_iget(sb, params->key, &fid, NULL, NULL);
         if (IS_ERR(inode))
                 goto error_inode;
 
@@ -473,9 +473,9 @@ static void afs_i_init_once(void *_vnode, struct kmem_cache *cachep,
                 inode_init_once(&vnode->vfs_inode);
                 init_waitqueue_head(&vnode->update_waitq);
                 mutex_init(&vnode->permits_lock);
+                mutex_init(&vnode->validate_lock);
                 spin_lock_init(&vnode->lock);
                 INIT_WORK(&vnode->cb_broken_work, afs_broken_callback_work);
-                mutex_init(&vnode->cb_broken_lock);
         }
 }
 
@@ -497,7 +497,7 @@ static struct inode *afs_alloc_inode(struct super_block *sb)
 
         vnode->volume           = NULL;
         vnode->update_cnt       = 0;
-        vnode->flags            = 0;
+        vnode->flags            = 1 << AFS_VNODE_UNSET;
         vnode->cb_promised      = false;
 
         return &vnode->vfs_inode;