NFSv4.0: always send mode in SETATTR after EXCLUSIVE4

commit a430607b2ef7c3be090f88c71cfcb1b3988aa7c0 upstream.

Some nfsv4.0 servers may return a mode for the verifier following an open
with EXCLUSIVE4 createmode, but this does not mean the client should skip
setting the mode in the following SETATTR.  It should only do that for
EXCLUSIVE4_1 or UNGAURDED createmode.

Fixes: 5334c5bdac92 ("NFS: Send attributes in OPEN request for NFS4_CREATE_EXCLUSIVE4_1")
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 3c69299c01abe567eb2c1947ab6818c80897fa5c..9a524e763c3e40907cc482d7e2af487c30bbee00 100644 (file)
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -2422,7 +2422,8 @@ static inline void nfs4_exclusive_attrset(struct nfs4_opendata *opendata,
                sattr->ia_valid |= ATTR_MTIME;
 
        /* Except MODE, it seems harmless of setting twice. */
-       if ((attrset[1] & FATTR4_WORD1_MODE))
+       if (opendata->o_arg.createmode != NFS4_CREATE_EXCLUSIVE &&
+               attrset[1] & FATTR4_WORD1_MODE)
                sattr->ia_valid &= ~ATTR_MODE;
 
        if (attrset[2] & FATTR4_WORD2_SECURITY_LABEL)