pnfs: use lwb as layoutcommit length
Using NFS4_MAX_UINT64 will break current protocol.
[Needed in v3.0]
CC: Stable Tree <stable@kernel.org>
Signed-off-by: Peng Tao <peng_tao@emc.com>
Signed-off-by: Jim Rees <rees@umich.edu>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index c191a9b..b851b56 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -1916,7 +1916,7 @@
*p++ = cpu_to_be32(OP_LAYOUTCOMMIT);
/* Only whole file layouts */
p = xdr_encode_hyper(p, 0); /* offset */
- p = xdr_encode_hyper(p, NFS4_MAX_UINT64); /* length */
+ p = xdr_encode_hyper(p, args->lastbytewritten + 1); /* length */
*p++ = cpu_to_be32(0); /* reclaim */
p = xdr_encode_opaque_fixed(p, args->stateid.data, NFS4_STATEID_SIZE);
*p++ = cpu_to_be32(1); /* newoffset = TRUE */