land b1_5 onto HEAD

[fs/lustre-release.git] / lustre / snapfs / dcache.c

diff --git a/lustre/snapfs/dcache.c b/lustre/snapfs/dcache.c
deleted file mode 100644 (file)
index cf4337d..0000000
--- a/lustre/snapfs/dcache.c
+++ /dev/null
@@ -1,56 +0,0 @@
-/*
- * Directory operations for SnapFS filesystem
- */
-
-#define DEBUG_SUBSYSTEM S_SNAP
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <linux/stat.h>
-#include <linux/unistd.h>
-#include <linux/jbd.h>
-#include <linux/ext3_fs.h>
-#include <linux/snap.h>
-
-#include "snapfs_internal.h" 
-
-
-/* called when a cache lookup succeeds */
-
-/* XXX PJB: the intent here is to make sure that inodes which are
-   currently primary inodes under .snap directories are dropped when
-   they are COWED.  It seems hard to me to get semantics that are equally
-   good as for mounted snap_clone file systems, but we should try to get
-   close 
-*/
-static int currentfs_dentry_revalidate(struct dentry *de, int flag)
-{
-//     struct inode *inode = de->d_inode;
-       ENTRY;
-
-       /* unless an ancestor is a .snap directory there is nothing to do */
-#if 0
-       if ( !currentfs_is_under_dotsnap(dentry) ) {
-               EXIT;
-               return 1;
-       }
-       /* XXX PJB get this to work guys! */
-       if ( de->d_parent == "dotsnap inode" && 
-            inode_is_newer_than(find_time_by_name(de->d_parent->d_name.name))){
-               1. drop this dentry 
-               2. make sure the VFS does a new lookup
-                3. probably all you need to do is 
-               return 0;
-       }
-#else 
-       RETURN(1);
-#endif
-}
-
-struct dentry_operations currentfs_dentry_ops = 
-{
-       d_revalidate: currentfs_dentry_revalidate
-};
-