nfs4.1: Add SP4_MACH_CRED write and commit support

WRITE and COMMIT can use the machine credential.

If WRITE is supported and COMMIT is not, make all (mach cred) writes FILE_SYNC4.

Signed-off-by: Weston Andros Adamson <dros@netapp.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4818a38f469b..e3cdfe346ebc 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -6223,6 +6223,16 @@ static int nfs4_sp4_select_mode(struct nfs_client *clp,
                         dfprintk(MOUNT, "  stateid mode enabled\n");
                         set_bit(NFS_SP4_MACH_CRED_STATEID, &clp->cl_sp4_flags);
                 }
+
+                if (test_bit(OP_WRITE, sp->allow.u.longs)) {
+                        dfprintk(MOUNT, "  write mode enabled\n");
+                        set_bit(NFS_SP4_MACH_CRED_WRITE, &clp->cl_sp4_flags);
+                }
+
+                if (test_bit(OP_COMMIT, sp->allow.u.longs)) {
+                        dfprintk(MOUNT, "  commit mode enabled\n");
+                        set_bit(NFS_SP4_MACH_CRED_COMMIT, &clp->cl_sp4_flags);
+                }
         }
 
         return 0;