Return-Path: linux-nfs-owner@vger.kernel.org Received: from fieldses.org ([174.143.236.118]:43501 "EHLO fieldses.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752708AbaEVTcr (ORCPT ); Thu, 22 May 2014 15:32:47 -0400 From: "J. Bruce Fields" To: linux-nfs@vger.kernel.org Cc: Christoph Hellwig , "J. Bruce Fields" Subject: [PATCH 45/52] nfsd4: more read encoding cleanup Date: Thu, 22 May 2014 15:32:20 -0400 Message-Id: <1400787148-25941-46-git-send-email-bfields@redhat.com> In-Reply-To: <1400787148-25941-1-git-send-email-bfields@redhat.com> References: <1400787148-25941-1-git-send-email-bfields@redhat.com> Sender: linux-nfs-owner@vger.kernel.org List-ID: From: "J. Bruce Fields" More cleanup, no change in functionality. Signed-off-by: J. Bruce Fields --- fs/nfsd/nfs4xdr.c | 22 ++++++++++------------ 1 file changed, 10 insertions(+), 12 deletions(-) diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index b8be187..fec9e13 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -3077,11 +3077,9 @@ static __be32 nfsd4_encode_splice_read( struct xdr_stream *xdr = &resp->xdr; struct xdr_buf *buf = xdr->buf; u32 eof; - int starting_len = xdr->buf->len - 8; int space_left; __be32 nfserr; - __be32 tmp; - __be32 *p; + __be32 *p = xdr->p - 2; /* * Don't inline pages unless we know there's room for eof, @@ -3105,25 +3103,25 @@ static __be32 nfsd4_encode_splice_read( eof = (read->rd_offset + maxcount >= read->rd_fhp->fh_dentry->d_inode->i_size); - tmp = htonl(eof); - write_bytes_to_xdr_buf(buf, starting_len , &tmp, 4); - tmp = htonl(maxcount); - write_bytes_to_xdr_buf(buf, starting_len + 4, &tmp, 4); + *(p++) = htonl(eof); + *(p++) = htonl(maxcount); buf->page_len = maxcount; buf->len += maxcount; xdr->page_ptr += (maxcount + PAGE_SIZE - 1) / PAGE_SIZE; - xdr->iov = buf->tail; /* Use rest of head for padding and remaining ops: */ buf->tail[0].iov_base = xdr->p; buf->tail[0].iov_len = 0; + xdr->iov = buf->tail; if (maxcount&3) { - p = xdr_reserve_space(xdr, 4); - WRITE32(0); + int pad = 4 - (maxcount&3); + + *(xdr->p++) = 0; + buf->tail[0].iov_base += maxcount&3; - buf->tail[0].iov_len = 4 - (maxcount&3); - buf->len -= (maxcount&3); + buf->tail[0].iov_len = pad; + buf->len += pad; } space_left = min_t(int, (void *)xdr->end - (void *)xdr->p, -- 1.9.0