NFSv4.1/pnfs: Separate out metadata and data consistency for pNFS
The LAYOUTCOMMIT operation means different things to different layout types.
For blocks and objects, it is both a data and metadata consistency operation.
For files and flexfiles, it is only a metadata consistency operation.
This patch separates out the 2 cases, allowing the files/flexfiles layout
drivers to optimise away the data consistency calls to layoutcommit.
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index a317b00..a46bf6d 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -1139,6 +1139,7 @@
.write_pagelist = filelayout_write_pagelist,
.alloc_deviceid_node = filelayout_alloc_deviceid_node,
.free_deviceid_node = filelayout_free_deviceid_node,
+ .sync = pnfs_nfs_generic_sync,
};
static int __init nfs4filelayout_init(void)