qemu-devel.nongnu.org archive mirror
 help / color / mirror / Atom feed
From: Hanna Czenczek <hreitz@redhat.com>
To: qemu-block@nongnu.org
Cc: qemu-devel@nongnu.org, "Hanna Czenczek" <hreitz@redhat.com>,
	"Kevin Wolf" <kwolf@redhat.com>,
	"Stefan Hajnoczi" <stefanha@redhat.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Richard W . M . Jones" <rjones@redhat.com>,
	"Ilya Dryomov" <idryomov@gmail.com>,
	"Peter Lieven" <pl@dlhnet.de>,
	"Philippe Mathieu-Daudé" <philmd@linaro.org>,
	"Alex Bennée" <alex.bennee@linaro.org>,
	"Fam Zheng" <fam@euphon.net>,
	"Ronnie Sahlberg" <ronniesahlberg@gmail.com>
Subject: [PATCH 12/16] blkreplay: Run BH in coroutine’s AioContext
Date: Tue, 28 Oct 2025 17:33:38 +0100	[thread overview]
Message-ID: <20251028163343.116249-13-hreitz@redhat.com> (raw)
In-Reply-To: <20251028163343.116249-1-hreitz@redhat.com>

While it does not matter in which AioContext we run aio_co_wake() to
continue an exactly-once-yielding coroutine, making this commit not
strictly necessary, there is also no reason why the BH should run in any
context but the request’s AioContext.

Signed-off-by: Hanna Czenczek <hreitz@redhat.com>
---
 block/blkreplay.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/block/blkreplay.c b/block/blkreplay.c
index 16d8b12dd9..8a6845425e 100644
--- a/block/blkreplay.c
+++ b/block/blkreplay.c
@@ -63,9 +63,10 @@ static void block_request_create(uint64_t reqid, BlockDriverState *bs,
                                  Coroutine *co)
 {
     Request *req = g_new(Request, 1);
+    AioContext *ctx = qemu_coroutine_get_aio_context(co);
     *req = (Request) {
         .co = co,
-        .bh = aio_bh_new(bdrv_get_aio_context(bs), blkreplay_bh_cb, req),
+        .bh = aio_bh_new(ctx, blkreplay_bh_cb, req),
     };
     replay_block_event(req->bh, reqid);
 }
-- 
2.51.0



  parent reply	other threads:[~2025-10-28 16:37 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-10-28 16:33 [PATCH 00/16] block: Some multi-threading fixes Hanna Czenczek
2025-10-28 16:33 ` [PATCH 01/16] block: Note on aio_co_wake use if not yet yielding Hanna Czenczek
2025-10-28 16:33 ` [PATCH 02/16] rbd: Run co BH CB in the coroutine’s AioContext Hanna Czenczek
2025-10-28 16:33 ` [PATCH 03/16] iscsi: " Hanna Czenczek
2025-10-29 14:27   ` Kevin Wolf
2025-10-31  9:07     ` Hanna Czenczek
2025-10-31 13:27       ` Kevin Wolf
2025-10-28 16:33 ` [PATCH 04/16] nfs: " Hanna Czenczek
2025-10-28 16:33 ` [PATCH 05/16] curl: Fix coroutine waking Hanna Czenczek
2025-10-29 16:57   ` Kevin Wolf
2025-10-31  9:15     ` Hanna Czenczek
2025-10-31 13:17       ` Kevin Wolf
2025-10-28 16:33 ` [PATCH 06/16] gluster: Do not move coroutine into BDS context Hanna Czenczek
2025-10-29 17:10   ` Kevin Wolf
2025-10-31  9:16     ` Hanna Czenczek
2025-10-28 16:33 ` [PATCH 07/16] nvme: Kick and check completions in " Hanna Czenczek
2025-10-29 17:23   ` Kevin Wolf
2025-10-29 17:39     ` Kevin Wolf
2025-10-31  9:18       ` Hanna Czenczek
2025-10-31  9:19     ` Hanna Czenczek
2025-10-28 16:33 ` [PATCH 08/16] nvme: Fix coroutine waking Hanna Czenczek
2025-10-29 17:43   ` Kevin Wolf
2025-10-28 16:33 ` [PATCH 09/16] block/io: Take reqs_lock for tracked_requests Hanna Czenczek
2025-10-28 16:33 ` [PATCH 10/16] qcow2: Fix cache_clean_timer Hanna Czenczek
2025-10-29 20:23   ` Kevin Wolf
2025-10-31  9:29     ` Hanna Czenczek
2025-10-31 13:03       ` Kevin Wolf
2025-11-06 16:08         ` Hanna Czenczek
2025-10-28 16:33 ` [PATCH 11/16] ssh: Run restart_coroutine in current AioContext Hanna Czenczek
2025-10-28 16:33 ` Hanna Czenczek [this message]
2025-10-28 16:33 ` [PATCH 13/16] block: Note in which AioContext AIO CBs are called Hanna Czenczek
2025-10-28 16:33 ` [PATCH 14/16] iscsi: Create AIO BH in original AioContext Hanna Czenczek
2025-10-28 16:33 ` [PATCH 15/16] null-aio: Run CB " Hanna Czenczek
2025-10-28 16:33 ` [PATCH 16/16] win32-aio: Run CB in original context Hanna Czenczek
2025-10-30 14:12   ` Kevin Wolf
2025-10-31  9:31     ` Hanna Czenczek

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20251028163343.116249-13-hreitz@redhat.com \
    --to=hreitz@redhat.com \
    --cc=alex.bennee@linaro.org \
    --cc=fam@euphon.net \
    --cc=idryomov@gmail.com \
    --cc=kwolf@redhat.com \
    --cc=pbonzini@redhat.com \
    --cc=philmd@linaro.org \
    --cc=pl@dlhnet.de \
    --cc=qemu-block@nongnu.org \
    --cc=qemu-devel@nongnu.org \
    --cc=rjones@redhat.com \
    --cc=ronniesahlberg@gmail.com \
    --cc=stefanha@redhat.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).