@@ -1031,35 +1031,37 @@ int af_alg_sendmsg(struct socket *sock, struct msghdr *msg, size_t size,
if (sgl->cur)
sg_unmark_end(sg + sgl->cur - 1);
- do {
- struct page *pg;
- unsigned int i = sgl->cur;
+ if (1 /* TODO check MSG_SPLICE_PAGES */) {
+ do {
+ struct page *pg;
+ unsigned int i = sgl->cur;
- plen = min_t(size_t, len, PAGE_SIZE);
+ plen = min_t(size_t, len, PAGE_SIZE);
- pg = alloc_page(GFP_KERNEL);
- if (!pg) {
- err = -ENOMEM;
- goto unlock;
- }
+ pg = alloc_page(GFP_KERNEL);
+ if (!pg) {
+ err = -ENOMEM;
+ goto unlock;
+ }
- sg_assign_page(sg + i, pg);
+ sg_assign_page(sg + i, pg);
- err = memcpy_from_msg(page_address(sg_page(sg + i)),
- msg, plen);
- if (err) {
- __free_page(sg_page(sg + i));
- sg_assign_page(sg + i, NULL);
- goto unlock;
- }
+ err = memcpy_from_msg(page_address(sg_page(sg + i)),
+ msg, plen);
+ if (err) {
+ __free_page(sg_page(sg + i));
+ sg_assign_page(sg + i, NULL);
+ goto unlock;
+ }
- sg[i].length = plen;
- len -= plen;
- ctx->used += plen;
- copied += plen;
- size -= plen;
- sgl->cur++;
- } while (len && sgl->cur < MAX_SGL_ENTS);
+ sg[i].length = plen;
+ len -= plen;
+ ctx->used += plen;
+ copied += plen;
+ size -= plen;
+ sgl->cur++;
+ } while (len && sgl->cur < MAX_SGL_ENTS);
+ }
if (!size)
sg_mark_end(sg + sgl->cur - 1);
Put the loop in af_alg_sendmsg() into an if-statement to indent it to make the next patch easier to review as that will add another branch to handle MSG_SPLICE_PAGES to the if-statement. Signed-off-by: David Howells <dhowells@redhat.com> cc: Herbert Xu <herbert@gondor.apana.org.au> cc: "David S. Miller" <davem@davemloft.net> cc: Eric Dumazet <edumazet@google.com> cc: Jakub Kicinski <kuba@kernel.org> cc: Paolo Abeni <pabeni@redhat.com> cc: Jens Axboe <axboe@kernel.dk> cc: Matthew Wilcox <willy@infradead.org> cc: linux-crypto@vger.kernel.org cc: netdev@vger.kernel.org --- crypto/af_alg.c | 50 +++++++++++++++++++++++++------------------------ 1 file changed, 26 insertions(+), 24 deletions(-)