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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni Cc: David Howells , Al Viro , Christoph Hellwig , Jens Axboe , Jeff Layton , Christian Brauner , Chuck Lever III , Linus Torvalds , netdev@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, Boris Pismenny , John Fastabend Subject: [PATCH v3 12/55] tls: Inline do_tcp_sendpages() Date: Fri, 31 Mar 2023 17:08:31 +0100 Message-Id: <20230331160914.1608208-13-dhowells@redhat.com> In-Reply-To: <20230331160914.1608208-1-dhowells@redhat.com> References: <20230331160914.1608208-1-dhowells@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 X-Rspam-User: X-Rspamd-Queue-Id: 31288100028 X-Rspamd-Server: rspam01 X-Stat-Signature: qai1jypi8ea8y3g4dznhyazqp8yxgwjp X-HE-Tag: 1680279001-867723 X-HE-Meta: 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 5Vlx+2yI 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 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: do_tcp_sendpages() is now just a small wrapper around tcp_sendmsg_locked(), so inline it, allowing do_tcp_sendpages() to be removed. This is part of replacing ->sendpage() with a call to sendmsg() with MSG_SPLICE_PAGES set. Signed-off-by: David Howells cc: Boris Pismenny cc: John Fastabend cc: Jakub Kicinski cc: "David S. Miller" cc: Eric Dumazet cc: Paolo Abeni cc: Jens Axboe cc: Matthew Wilcox cc: netdev@vger.kernel.org --- include/net/tls.h | 2 +- net/tls/tls_main.c | 24 +++++++++++++++--------- 2 files changed, 16 insertions(+), 10 deletions(-) diff --git a/include/net/tls.h b/include/net/tls.h index 154949c7b0c8..d31521c36a84 100644 --- a/include/net/tls.h +++ b/include/net/tls.h @@ -256,7 +256,7 @@ struct tls_context { struct scatterlist *partially_sent_record; u16 partially_sent_offset; - bool in_tcp_sendpages; + bool splicing_pages; bool pending_open_record_frags; struct mutex tx_lock; /* protects partially_sent_* fields and diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index 3735cb00905d..35b2f7ee2fa3 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -124,7 +124,10 @@ int tls_push_sg(struct sock *sk, u16 first_offset, int flags) { - int sendpage_flags = flags | MSG_SENDPAGE_NOTLAST; + struct bio_vec bvec; + struct msghdr msg = { + .msg_flags = MSG_SENDPAGE_NOTLAST | MSG_SPLICE_PAGES | flags, + }; int ret = 0; struct page *p; size_t size; @@ -133,16 +136,19 @@ int tls_push_sg(struct sock *sk, size = sg->length - offset; offset += sg->offset; - ctx->in_tcp_sendpages = true; + ctx->splicing_pages = true; while (1) { if (sg_is_last(sg)) - sendpage_flags = flags; + msg.msg_flags = flags; /* is sending application-limited? */ tcp_rate_check_app_limited(sk); p = sg_page(sg); retry: - ret = do_tcp_sendpages(sk, p, offset, size, sendpage_flags); + bvec_set_page(&bvec, p, size, offset); + iov_iter_bvec(&msg.msg_iter, ITER_SOURCE, &bvec, 1, size); + + ret = tcp_sendmsg_locked(sk, &msg, size); if (ret != size) { if (ret > 0) { @@ -154,7 +160,7 @@ int tls_push_sg(struct sock *sk, offset -= sg->offset; ctx->partially_sent_offset = offset; ctx->partially_sent_record = (void *)sg; - ctx->in_tcp_sendpages = false; + ctx->splicing_pages = false; return ret; } @@ -168,7 +174,7 @@ int tls_push_sg(struct sock *sk, size = sg->length; } - ctx->in_tcp_sendpages = false; + ctx->splicing_pages = false; return 0; } @@ -246,11 +252,11 @@ static void tls_write_space(struct sock *sk) { struct tls_context *ctx = tls_get_ctx(sk); - /* If in_tcp_sendpages call lower protocol write space handler + /* If splicing_pages call lower protocol write space handler * to ensure we wake up any waiting operations there. For example - * if do_tcp_sendpages where to call sk_wait_event. + * if splicing pages where to call sk_wait_event. */ - if (ctx->in_tcp_sendpages) { + if (ctx->splicing_pages) { ctx->sk_write_space(sk); return; }