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c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1748459375; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=Hpc5lSmlPYOb09Vw5vORJdIYSdR2P9cx3comlxLFLP4=; b=i/VsK/6f3ex1oLI09wBmHoifbVZekYMd7hTHbXAMsqfuP99/nOK9teP37zwdhjMG99FfVw WnjBy3K4j14dfN/uc1Ti9fkolZIq5M2DIUSuznvWBkSjWKCB5Bt8o4jZK3/LwxvsDcEC5r VYxx9SD6R5E54QKQETWsEqoB89bKAwc= X-MC-Unique: MUFBmn5kMYG9LsP5-ay1AQ-1 X-Mimecast-MFC-AGG-ID: MUFBmn5kMYG9LsP5-ay1AQ_1748459369 From: Stefan Hajnoczi To: qemu-devel@nongnu.org Cc: qemu-block@nongnu.org, Stefan Hajnoczi , hibriansong@gmail.com, Kevin Wolf , Hanna Czenczek Subject: [RFC 05/11] aio: remove aio_context_use_g_source() Date: Wed, 28 May 2025 15:09:10 -0400 Message-ID: <20250528190916.35864-6-stefanha@redhat.com> In-Reply-To: <20250528190916.35864-1-stefanha@redhat.com> References: <20250528190916.35864-1-stefanha@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.12 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; 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charset="utf-8" There is no need for aio_context_use_g_source() now that epoll(7) and io_uring(7) file descriptor monitoring works with the glib event loop. AioContext doesn't need to be notified that GSource is being used. Signed-off-by: Stefan Hajnoczi Reviewed-by: Eric Blake --- include/block/aio.h | 3 --- tests/unit/test-nested-aio-poll.c | 6 ------ util/aio-posix.c | 12 ------------ util/aio-win32.c | 4 ---- util/async.c | 1 - 5 files changed, 26 deletions(-) diff --git a/include/block/aio.h b/include/block/aio.h index 39ed86d14d..1657740a0e 100644 --- a/include/block/aio.h +++ b/include/block/aio.h @@ -728,9 +728,6 @@ void aio_context_setup(AioContext *ctx); */ void aio_context_destroy(AioContext *ctx); =20 -/* Used internally, do not call outside AioContext code */ -void aio_context_use_g_source(AioContext *ctx); - /** * aio_context_set_poll_params: * @ctx: the aio context diff --git a/tests/unit/test-nested-aio-poll.c b/tests/unit/test-nested-aio= -poll.c index 45484e745b..d13ecccd8c 100644 --- a/tests/unit/test-nested-aio-poll.c +++ b/tests/unit/test-nested-aio-poll.c @@ -83,12 +83,6 @@ static void test(void) /* Enable polling */ aio_context_set_poll_params(td.ctx, 1000000, 2, 2, &error_abort); =20 - /* - * The GSource is unused but this has the side-effect of changing the = fdmon - * that AioContext uses. - */ - aio_get_g_source(td.ctx); - /* Make the event notifier active (set) right away */ event_notifier_init(&td.poll_notifier, 1); aio_set_event_notifier(td.ctx, &td.poll_notifier, diff --git a/util/aio-posix.c b/util/aio-posix.c index dd135c7baa..5634da7d27 100644 --- a/util/aio-posix.c +++ b/util/aio-posix.c @@ -736,18 +736,6 @@ void aio_context_destroy(AioContext *ctx) aio_free_deleted_handlers(ctx); } =20 -void aio_context_use_g_source(AioContext *ctx) -{ - /* - * Disable io_uring when the glib main loop is used because it doesn't - * support mixed glib/aio_poll() usage. It relies on aio_poll() being - * called regularly so that changes to the monitored file descriptors = are - * submitted, otherwise a list of pending fd handlers builds up. - */ - fdmon_io_uring_destroy(ctx); - aio_free_deleted_handlers(ctx); -} - void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns, int64_t grow, int64_t shrink, Error **err= p) { diff --git a/util/aio-win32.c b/util/aio-win32.c index 6583d5c5f3..34c4074133 100644 --- a/util/aio-win32.c +++ b/util/aio-win32.c @@ -427,10 +427,6 @@ void aio_context_destroy(AioContext *ctx) { } =20 -void aio_context_use_g_source(AioContext *ctx) -{ -} - void aio_context_set_poll_params(AioContext *ctx, int64_t max_ns, int64_t grow, int64_t shrink, Error **err= p) { diff --git a/util/async.c b/util/async.c index 2719c629ae..a39410d675 100644 --- a/util/async.c +++ b/util/async.c @@ -430,7 +430,6 @@ static GSourceFuncs aio_source_funcs =3D { =20 GSource *aio_get_g_source(AioContext *ctx) { - aio_context_use_g_source(ctx); g_source_ref(&ctx->source); return &ctx->source; } --=20 2.49.0