cifs: register CIFS for caching

Define CIFS for FS-Cache and register for caching. Upon registration the
top-level index object cookie will be stuck to the netfs definition by
FS-Cache.

Signed-off-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Steve French <sfrench@us.ibm.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index 2cb1a70214d7..24d7f4ab3b65 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -47,6 +47,7 @@
 #include <linux/key-type.h>
 #include "dns_resolve.h"
 #include "cifs_spnego.h"
+#include "fscache.h"
 #define CIFS_MAGIC_NUMBER 0xFF534D42    /* the first four bytes of SMB PDUs */
 
 int cifsFYI = 0;
@@ -902,6 +903,10 @@ init_cifs(void)
                 cFYI(1, "cifs_max_pending set to max of 256");
         }
 
+        rc = cifs_fscache_register();
+        if (rc)
+                goto out;
+
         rc = cifs_init_inodecache();
         if (rc)
                 goto out_clean_proc;
@@ -951,6 +956,8 @@ init_cifs(void)
         cifs_destroy_inodecache();
  out_clean_proc:
         cifs_proc_clean();
+        cifs_fscache_unregister();
+ out:
         return rc;
 }
 
@@ -959,6 +966,7 @@ exit_cifs(void)
 {
         cFYI(DBG2, "exit_cifs");
         cifs_proc_clean();
+        cifs_fscache_unregister();
 #ifdef CONFIG_CIFS_DFS_UPCALL
         cifs_dfs_release_automount_timer();
         cifs_exit_dns_resolver();