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thread-pool: use ThreadPool from the running thread

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Use qemu_get_current_aio_context() where possible, since we always
submit work to the current thread anyways.

We want to also be sure that the thread submitting the work is
the same as the one processing the pool, to avoid adding
synchronization to the pool list.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20230203131731.851116-4-eesposit@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Emanuele Giuseppe Esposito 2023-02-03 08:17:30 -05:00 • committed by Kevin Wolf
parent a75e4e4365
commit 0fdb73112b
5 changed files with 21 additions and 18 deletions
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2
block/qcow2-threads.c
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@ -43,7 +43,7 @@ qcow2_co_process(BlockDriverState *bs, ThreadPoolFunc *func, void *arg)
{
int ret;
BDRVQcow2State *s = bs->opaque;
ThreadPool *pool = aio_get_thread_pool(bdrv_get_aio_context(bs));
ThreadPool *pool = aio_get_thread_pool(qemu_get_current_aio_context());
qemu_co_mutex_lock(&s->lock);
while (s->nb_threads >= QCOW2_MAX_THREADS) {