nfsd4: read encoding cleanup
Trivial cleanup, no change in functionality. Signed-off-by: J. Bruce Fields <bfields@redhat.com>
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@ -3075,6 +3075,7 @@ static __be32 nfsd4_encode_splice_read(
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struct file *file, unsigned long maxcount)
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{
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struct xdr_stream *xdr = &resp->xdr;
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struct xdr_buf *buf = xdr->buf;
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u32 eof;
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int starting_len = xdr->buf->len - 8;
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int space_left;
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@ -3097,7 +3098,7 @@ static __be32 nfsd4_encode_splice_read(
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* page length; reset it so as not to confuse
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* xdr_truncate_encode:
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*/
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xdr->buf->page_len = 0;
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buf->page_len = 0;
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return nfserr;
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}
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@ -3105,29 +3106,29 @@ static __be32 nfsd4_encode_splice_read(
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read->rd_fhp->fh_dentry->d_inode->i_size);
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tmp = htonl(eof);
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write_bytes_to_xdr_buf(xdr->buf, starting_len , &tmp, 4);
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write_bytes_to_xdr_buf(buf, starting_len , &tmp, 4);
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tmp = htonl(maxcount);
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write_bytes_to_xdr_buf(xdr->buf, starting_len + 4, &tmp, 4);
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write_bytes_to_xdr_buf(buf, starting_len + 4, &tmp, 4);
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resp->xdr.buf->page_len = maxcount;
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xdr->buf->len += maxcount;
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buf->page_len = maxcount;
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buf->len += maxcount;
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xdr->page_ptr += (maxcount + PAGE_SIZE - 1) / PAGE_SIZE;
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xdr->iov = xdr->buf->tail;
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xdr->iov = buf->tail;
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/* Use rest of head for padding and remaining ops: */
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resp->xdr.buf->tail[0].iov_base = xdr->p;
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resp->xdr.buf->tail[0].iov_len = 0;
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buf->tail[0].iov_base = xdr->p;
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buf->tail[0].iov_len = 0;
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if (maxcount&3) {
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p = xdr_reserve_space(xdr, 4);
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WRITE32(0);
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resp->xdr.buf->tail[0].iov_base += maxcount&3;
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resp->xdr.buf->tail[0].iov_len = 4 - (maxcount&3);
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xdr->buf->len -= (maxcount&3);
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buf->tail[0].iov_base += maxcount&3;
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buf->tail[0].iov_len = 4 - (maxcount&3);
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buf->len -= (maxcount&3);
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}
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space_left = min_t(int, (void *)xdr->end - (void *)xdr->p,
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xdr->buf->buflen - xdr->buf->len);
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xdr->buf->buflen = xdr->buf->len + space_left;
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buf->buflen - buf->len);
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buf->buflen = buf->len + space_left;
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xdr->end = (__be32 *)((void *)xdr->end + space_left);
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return 0;
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