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From: Kevin Wolf <kwolf@redhat.com>
To: qemu-block@nongnu.org
Cc: kwolf@redhat.com, richard.henderson@linaro.org, qemu-devel@nongnu.org
Subject: [PULL 15/19] blkreplay: Run BH in coroutine’s AioContext
Date: Tue, 18 Nov 2025 18:02:52 +0100	[thread overview]
Message-ID: <20251118170256.272087-16-kwolf@redhat.com> (raw)
In-Reply-To: <20251118170256.272087-1-kwolf@redhat.com>

From: Hanna Czenczek <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>
Message-ID: <20251110154854.151484-16-hreitz@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@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);
 }
-- 
2.51.1



  parent reply	other threads:[~2025-11-18 17:10 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-11-18 17:02 [PULL 00/19] Block layer patches Kevin Wolf
2025-11-18 17:02 ` [PULL 01/19] block: Note on aio_co_wake use if not yet yielding Kevin Wolf
2025-11-18 17:02 ` [PULL 02/19] rbd: Run co BH CB in the coroutine’s AioContext Kevin Wolf
2025-11-18 17:02 ` [PULL 03/19] iscsi: " Kevin Wolf
2025-11-18 17:02 ` [PULL 04/19] nfs: " Kevin Wolf
2025-11-18 17:02 ` [PULL 05/19] curl: Fix coroutine waking Kevin Wolf
2025-11-18 17:02 ` [PULL 06/19] gluster: Do not move coroutine into BDS context Kevin Wolf
2025-11-18 17:02 ` [PULL 07/19] nvme: Kick and check completions in " Kevin Wolf
2025-11-18 17:02 ` [PULL 08/19] nvme: Fix coroutine waking Kevin Wolf
2025-11-18 17:02 ` [PULL 09/19] nvme: Note in which AioContext some functions run Kevin Wolf
2025-11-18 17:02 ` [PULL 10/19] block/io: Take reqs_lock for tracked_requests Kevin Wolf
2025-11-18 17:02 ` [PULL 11/19] qcow2: Re-initialize lock in invalidate_cache Kevin Wolf
2025-11-18 17:02 ` [PULL 12/19] qcow2: Fix cache_clean_timer Kevin Wolf
2025-11-18 17:02 ` [PULL 13/19] qcow2: Schedule cache-clean-timer in realtime Kevin Wolf
2025-11-18 17:02 ` [PULL 14/19] ssh: Run restart_coroutine in current AioContext Kevin Wolf
2025-11-18 17:02 ` Kevin Wolf [this message]
2025-11-18 17:02 ` [PULL 16/19] block: Note in which AioContext AIO CBs are called Kevin Wolf
2025-11-18 17:02 ` [PULL 17/19] iscsi: Create AIO BH in original AioContext Kevin Wolf
2025-11-18 17:02 ` [PULL 18/19] null-aio: Run CB " Kevin Wolf
2025-11-18 17:02 ` [PULL 19/19] win32-aio: Run CB in original context Kevin Wolf
2025-11-19  9:44 ` [PULL 00/19] Block layer patches Richard Henderson

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