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, 8 insertions, 0 deletions

diff --git a/fs/afs/Kconfig b/fs/afs/Kconfig
index e7b522fe15e1..5c4e61d3c772 100644
--- a/fs/afs/Kconfig
+++ b/fs/afs/Kconfig
@@ -19,3 +19,11 @@ config AFS_DEBUG
           See <file:Documentation/filesystems/afs.txt> for more information.
 
           If unsure, say N.
+
+config AFS_FSCACHE
+        bool "Provide AFS client caching support (EXPERIMENTAL)"
+        depends on EXPERIMENTAL
+        depends on AFS_FS=m && FSCACHE || AFS_FS=y && FSCACHE=y
+        help
+          Say Y here if you want AFS data to be cached locally on disk through
+          the generic filesystem cache manager