NFSv4: fix getacl head length estimation

commit 6682c14bbe505a8b912c57faf544f866777ee48d upstream.

Bitmap and attrlen follow immediately after the op reply header.  This
was an oversight from commit bf118a342f.

Consequences of this are just minor efficiency (extra calls to
xdr_shrink_bufhead).

Fixes: bf118a342f10 "NFSv4: include bitmap in nfsv4 get acl data"
Reviewed-by: Kinglong Mee <kinglongmee@gmail.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Willy Tarreau <w@1wt.eu>

diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 988efb4caac0a0a2a8cccc203c004f9bf62ec0ed..f5d27ca10146f2d4b7a89fe0ccf5e75cedd56706 100644 (file)
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2435,7 +2435,7 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
        encode_compound_hdr(xdr, req, &hdr);
        encode_sequence(xdr, &args->seq_args, &hdr);
        encode_putfh(xdr, args->fh, &hdr);
-       replen = hdr.replen + op_decode_hdr_maxsz + 1;
+       replen = hdr.replen + op_decode_hdr_maxsz;
        encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
 
        xdr_inline_pages(&req->rq_rcv_buf, replen << 2,