1 files changed, 2 insertions, 2 deletions

diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index 2d786b813c7e..16e71d033ea5 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -1261,13 +1261,13 @@ static void svcxdr_init_encode(struct svc_rqst *rqstp,
         xdr->buf = buf;
         xdr->iov = head;
         xdr->p   = head->iov_base + head->iov_len;
-        xdr->end = head->iov_base + PAGE_SIZE - 2 * RPC_MAX_AUTH_SIZE;
+        xdr->end = head->iov_base + PAGE_SIZE - rqstp->rq_auth_slack;
         /* Tail and page_len should be zero at this point: */
         buf->len = buf->head[0].iov_len;
         xdr->scratch.iov_len = 0;
         xdr->page_ptr = buf->pages;
         buf->buflen = PAGE_SIZE * (1 + rqstp->rq_page_end - buf->pages)
-                - 2 * RPC_MAX_AUTH_SIZE;
+                - rqstp->rq_auth_slack;
 }
 
 /*