diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2023-09-12 19:10:35 -0400 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2023-09-20 17:46:01 +0200 |
| commit | 46eb6e861b0a622541593ea6db85e7c971dadb28 (patch) | |
| tree | 1f15f871266eae07a1d761d384a4d3c92c5e7e54 /block/block-backend.c | |
| parent | c8bf923d5eeed0b2bbe26feb37bb399ec1a894f5 (diff) | |
block-backend: process I/O in the current AioContext
Switch blk_aio_*() APIs over to multi-queue by using
qemu_get_current_aio_context() instead of blk_get_aio_context(). This
change will allow devices to process I/O in multiple IOThreads in the
future.
I audited existing blk_aio_*() callers:
- migration/block.c: blk_mig_lock() protects the data accessed by the
completion callback.
- The remaining emulated devices and exports run with
qemu_get_aio_context() == blk_get_aio_context().
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20230912231037.826804-4-stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/block-backend.c')
| -rw-r--r-- | block/block-backend.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 24b9449712..6f0a6084f1 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1547,7 +1547,7 @@ BlockAIOCB *blk_abort_aio_request(BlockBackend *blk, acb->blk = blk; acb->ret = ret; - replay_bh_schedule_oneshot_event(blk_get_aio_context(blk), + replay_bh_schedule_oneshot_event(qemu_get_current_aio_context(), error_callback_bh, acb); return &acb->common; } @@ -1601,11 +1601,11 @@ static BlockAIOCB *blk_aio_prwv(BlockBackend *blk, int64_t offset, acb->has_returned = false; co = qemu_coroutine_create(co_entry, acb); - aio_co_enter(blk_get_aio_context(blk), co); + aio_co_enter(qemu_get_current_aio_context(), co); acb->has_returned = true; if (acb->rwco.ret != NOT_DONE) { - replay_bh_schedule_oneshot_event(blk_get_aio_context(blk), + replay_bh_schedule_oneshot_event(qemu_get_current_aio_context(), blk_aio_complete_bh, acb); } |