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| author | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-04-21 00:38:17 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2020-10-07 21:28:39 +0300 |
| commit | 06216ecbd93688f7acb617e186b9556a565a13bd (patch) | |
| tree | 0819a49750edaf401dd2802ae65e73a8b9f76896 /net | |
| parent | c567552612ece787b178e3b147b5854ad422a836 (diff) | |
| download | linux-06216ecbd93688f7acb617e186b9556a565a13bd.tar.xz | |
SUNRPC: Split out xdr_realign_pages() from xdr_align_pages()
I don't need the entire align pages code for READ_PLUS, so split out the
part I do need so I don't need to reimplement anything.
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/sunrpc/xdr.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c index 909920fab93b..d93bcad5ba9f 100644 --- a/net/sunrpc/xdr.c +++ b/net/sunrpc/xdr.c @@ -997,26 +997,33 @@ out_overflow: } EXPORT_SYMBOL_GPL(xdr_inline_decode); -static unsigned int xdr_align_pages(struct xdr_stream *xdr, unsigned int len) +static void xdr_realign_pages(struct xdr_stream *xdr) { struct xdr_buf *buf = xdr->buf; - struct kvec *iov; - unsigned int nwords = XDR_QUADLEN(len); + struct kvec *iov = buf->head; unsigned int cur = xdr_stream_pos(xdr); unsigned int copied, offset; - if (xdr->nwords == 0) - return 0; - /* Realign pages to current pointer position */ - iov = buf->head; if (iov->iov_len > cur) { offset = iov->iov_len - cur; copied = xdr_shrink_bufhead(buf, offset); trace_rpc_xdr_alignment(xdr, offset, copied); xdr->nwords = XDR_QUADLEN(buf->len - cur); } +} + +static unsigned int xdr_align_pages(struct xdr_stream *xdr, unsigned int len) +{ + struct xdr_buf *buf = xdr->buf; + unsigned int nwords = XDR_QUADLEN(len); + unsigned int cur = xdr_stream_pos(xdr); + unsigned int copied, offset; + + if (xdr->nwords == 0) + return 0; + xdr_realign_pages(xdr); if (nwords > xdr->nwords) { nwords = xdr->nwords; len = nwords << 2; |