94 lines
3.4 KiB
Diff
94 lines
3.4 KiB
Diff
From 37acfe84ccbc4cc050e7be0ba9c8c4134a7b004e Mon Sep 17 00:00:00 2001
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From: Max Reitz <mreitz@redhat.com>
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Date: Tue, 19 Nov 2019 15:29:57 +0000
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Subject: [PATCH 5/8] curl: Pass CURLSocket to curl_multi_do()
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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RH-Author: Max Reitz <mreitz@redhat.com>
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Message-id: <20191119153000.101646-5-mreitz@redhat.com>
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Patchwork-id: 92518
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O-Subject: [RHEL-8.2.0 qemu-kvm PATCH 4/7] curl: Pass CURLSocket to curl_multi_do()
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Bugzilla: 1744602
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RH-Acked-by: Maxim Levitsky <mlevitsk@redhat.com>
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RH-Acked-by: Philippe Mathieu-Daudé <philmd@redhat.com>
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RH-Acked-by: Stefano Garzarella <sgarzare@redhat.com>
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curl_multi_do_locked() currently marks all sockets as ready. That is
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not only inefficient, but in fact unsafe (the loop is). A follow-up
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patch will change that, but to do so, curl_multi_do_locked() needs to
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know exactly which socket is ready; and that is accomplished by this
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patch here.
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Cc: qemu-stable@nongnu.org
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Message-id: 20190910124136.10565-5-mreitz@redhat.com
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Reviewed-by: Maxim Levitsky <mlevitsk@redhat.com>
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Reviewed-by: John Snow <jsnow@redhat.com>
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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(cherry picked from commit 9dbad87d25587ff640ef878f7b6159fc368ff541)
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Signed-off-by: Max Reitz <mreitz@redhat.com>
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Signed-off-by: Danilo C. L. de Paula <ddepaula@redhat.com>
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---
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block/curl.c | 20 +++++++++++---------
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1 file changed, 11 insertions(+), 9 deletions(-)
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diff --git a/block/curl.c b/block/curl.c
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index 8f31594..de00ec8 100644
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--- a/block/curl.c
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+++ b/block/curl.c
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@@ -194,15 +194,15 @@ static int curl_sock_cb(CURL *curl, curl_socket_t fd, int action,
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switch (action) {
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case CURL_POLL_IN:
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aio_set_fd_handler(s->aio_context, fd, false,
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- curl_multi_do, NULL, NULL, state);
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+ curl_multi_do, NULL, NULL, socket);
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break;
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case CURL_POLL_OUT:
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aio_set_fd_handler(s->aio_context, fd, false,
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- NULL, curl_multi_do, NULL, state);
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+ NULL, curl_multi_do, NULL, socket);
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break;
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case CURL_POLL_INOUT:
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aio_set_fd_handler(s->aio_context, fd, false,
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- curl_multi_do, curl_multi_do, NULL, state);
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+ curl_multi_do, curl_multi_do, NULL, socket);
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break;
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case CURL_POLL_REMOVE:
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aio_set_fd_handler(s->aio_context, fd, false,
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@@ -401,9 +401,10 @@ static void curl_multi_check_completion(BDRVCURLState *s)
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}
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/* Called with s->mutex held. */
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-static void curl_multi_do_locked(CURLState *s)
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+static void curl_multi_do_locked(CURLSocket *ready_socket)
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{
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CURLSocket *socket, *next_socket;
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+ CURLState *s = ready_socket->state;
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int running;
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int r;
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@@ -422,12 +423,13 @@ static void curl_multi_do_locked(CURLState *s)
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static void curl_multi_do(void *arg)
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{
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- CURLState *s = (CURLState *)arg;
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+ CURLSocket *socket = arg;
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+ BDRVCURLState *s = socket->state->s;
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- qemu_mutex_lock(&s->s->mutex);
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- curl_multi_do_locked(s);
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- curl_multi_check_completion(s->s);
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- qemu_mutex_unlock(&s->s->mutex);
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+ qemu_mutex_lock(&s->mutex);
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+ curl_multi_do_locked(socket);
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+ curl_multi_check_completion(s);
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+ qemu_mutex_unlock(&s->mutex);
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}
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static void curl_multi_timeout_do(void *arg)
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--
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1.8.3.1
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