fs/9p: Clarify cached dentry delete operation

Update the comment to indicate that we don't want to cache
negative dentries.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com>
Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>

diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index 233b7d4..a4ae4be 100644 (file)
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -63,20 +63,15 @@ static int v9fs_dentry_delete(const struct dentry *dentry)
  * v9fs_cached_dentry_delete - called when dentry refcount equals 0
  * @dentry:  dentry in question
  *
- * Only return 1 if our inode is invalid.  Only non-synthetic files
- * (ones without mtime == 0) should be calling this function.
- *
  */
-
 static int v9fs_cached_dentry_delete(const struct dentry *dentry)
 {
-       struct inode *inode = dentry->d_inode;
-       P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_name.name,
-                                                                       dentry);
+       P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n",
+                  dentry->d_name.name, dentry);
 
-       if(!inode)
+       /* Don't cache negative dentries */
+       if (!dentry->d_inode)
                return 1;
-
        return 0;
 }