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authorJ. Bruce Fields <bfields@redhat.com>2014-05-13 17:27:03 -0400
committerJ. Bruce Fields <bfields@redhat.com>2014-05-30 17:32:11 -0400
commitfec25fa4ad728dd9b063313f2a61ff65eae0d571 (patch)
tree120c2f2ac802f273557bdc79f9c0fc86abf36576 /fs/nfsd
parent34a78b488f144e011493fa51f10c01d034d47c8e (diff)
downloadlinux-fec25fa4ad728dd9b063313f2a61ff65eae0d571.tar.bz2
nfsd4: more read encoding cleanup
More cleanup, no change in functionality. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
Diffstat (limited to 'fs/nfsd')
-rw-r--r--fs/nfsd/nfs4xdr.c22
1 files changed, 10 insertions, 12 deletions
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index addb93bf03b7..92f071b44f75 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,