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authorPaolo Bonzini <pbonzini@redhat.com>2017-02-13 14:52:31 +0100
committerStefan Hajnoczi <stefanha@redhat.com>2017-02-21 11:39:39 +0000
commit1919631e6b5562e474690853eca3c35610201e16 (patch)
treef2a7e1da7d7d0ad988faa4801309a45a68c78b60 /util
parent9d456654482a8bd1ff72f0bdbe1f393149a5680a (diff)
block: explicitly acquire aiocontext in bottom halves that need it
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Fam Zheng <famz@redhat.com> Reviewed-by: Daniel P. Berrange <berrange@redhat.com> Message-id: 20170213135235.12274-15-pbonzini@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'util')
-rw-r--r--util/async.c4
-rw-r--r--util/thread-pool.c2
2 files changed, 4 insertions, 2 deletions
diff --git a/util/async.c b/util/async.c
index aec8016d42..c54da7164e 100644
--- a/util/async.c
+++ b/util/async.c
@@ -114,9 +114,7 @@ int aio_bh_poll(AioContext *ctx)
ret = 1;
}
bh->idle = 0;
- aio_context_acquire(ctx);
aio_bh_call(bh);
- aio_context_release(ctx);
}
if (bh->deleted) {
deleted = true;
@@ -389,7 +387,9 @@ static void co_schedule_bh_cb(void *opaque)
Coroutine *co = QSLIST_FIRST(&straight);
QSLIST_REMOVE_HEAD(&straight, co_scheduled_next);
trace_aio_co_schedule_bh_cb(ctx, co);
+ aio_context_acquire(ctx);
qemu_coroutine_enter(co);
+ aio_context_release(ctx);
}
}
diff --git a/util/thread-pool.c b/util/thread-pool.c
index 6fba913529..7c9cec57e3 100644
--- a/util/thread-pool.c
+++ b/util/thread-pool.c
@@ -165,6 +165,7 @@ static void thread_pool_completion_bh(void *opaque)
ThreadPool *pool = opaque;
ThreadPoolElement *elem, *next;
+ aio_context_acquire(pool->ctx);
restart:
QLIST_FOREACH_SAFE(elem, &pool->head, all, next) {
if (elem->state != THREAD_DONE) {
@@ -191,6 +192,7 @@ restart:
qemu_aio_unref(elem);
}
}
+ aio_context_release(pool->ctx);
}
static void thread_pool_cancel(BlockAIOCB *acb)