X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=fs%2Fnamei.c;h=445fd5da11fa9f366458247c842d68dacb147c87;hp=f8c69d37379348973d2a12e055dbc6c61dc4cbf4;hb=1b8e94993c4752d98c33903aa836acc15f7e6d5c;hpb=c32e7d669ef827f97d1aae8f6b34542665defbf6

diff --git a/fs/namei.c b/fs/namei.c
index f8c69d373793..445fd5da11fa 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -716,19 +716,25 @@ static int follow_automount(struct path *path, unsigned flags,
 	if ((flags & LOOKUP_NO_AUTOMOUNT) && !(flags & LOOKUP_PARENT))
 		return -EISDIR; /* we actually want to stop here */
 
-	/* We want to mount if someone is trying to open/create a file of any
-	 * type under the mountpoint, wants to traverse through the mountpoint
-	 * or wants to open the mounted directory.
-	 *
+	/*
 	 * We don't want to mount if someone's just doing a stat and they've
 	 * set AT_SYMLINK_NOFOLLOW - unless they're stat'ing a directory and
 	 * appended a '/' to the name.
 	 */
-	if (!(flags & LOOKUP_FOLLOW) &&
-	    !(flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY |
-		       LOOKUP_OPEN | LOOKUP_CREATE)))
-		return -EISDIR;
-
+	if (!(flags & LOOKUP_FOLLOW)) {
+		/* We do, however, want to mount if someone wants to open or
+		 * create a file of any type under the mountpoint, wants to
+		 * traverse through the mountpoint or wants to open the mounted
+		 * directory.
+		 * Also, autofs may mark negative dentries as being automount
+		 * points.  These will need the attentions of the daemon to
+		 * instantiate them before they can be used.
+		 */
+		if (!(flags & (LOOKUP_PARENT | LOOKUP_DIRECTORY |
+			     LOOKUP_OPEN | LOOKUP_CREATE)) &&
+		    path->dentry->d_inode)
+			return -EISDIR;
+	}
 	current->total_link_count++;
 	if (current->total_link_count >= 40)
 		return -ELOOP;