FS-Cache: Make kAFS use FS-Cache

The attached patch makes the kAFS filesystem in fs/afs/ use FS-Cache, and
through it any attached caches.  The kAFS filesystem will use caching
automatically if it's available.

Signed-off-by: David Howells <dhowells@redhat.com>
Acked-by: Steve Dickson <steved@redhat.com>
Acked-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Tested-by: Daire Byrne <Daire.Byrne@framestore.com>

1 files changed, 7 insertions, 9 deletions

diff --git a/fs/afs/cell.c b/fs/afs/cell.c
index 5e1df14e16b1..e19c13f059ed 100644
--- a/fs/afs/cell.c
+++ b/fs/afs/cell.c
@@ -147,12 +147,11 @@ struct afs_cell *afs_cell_create(const char *name, char *vllist)
         if (ret < 0)
                 goto error;
 
-#ifdef AFS_CACHING_SUPPORT
-        /* put it up for caching */
-        cachefs_acquire_cookie(afs_cache_netfs.primary_index,
-                               &afs_vlocation_cache_index_def,
-                               cell,
-                               &cell->cache);
+#ifdef CONFIG_AFS_FSCACHE
+        /* put it up for caching (this never returns an error) */
+        cell->cache = fscache_acquire_cookie(afs_cache_netfs.primary_index,
+                                             &afs_cell_cache_index_def,
+                                             cell);
 #endif
 
         /* add to the cell lists */
@@ -362,10 +361,9 @@ static void afs_cell_destroy(struct afs_cell *cell)
         list_del_init(&cell->proc_link);
         up_write(&afs_proc_cells_sem);
 
-#ifdef AFS_CACHING_SUPPORT
-        cachefs_relinquish_cookie(cell->cache, 0);
+#ifdef CONFIG_AFS_FSCACHE
+        fscache_relinquish_cookie(cell->cache, 0);
 #endif
-
         key_put(cell->anonymous_key);
         kfree(cell);