4b3a4f2d45
The aio_context_new() function does not allocate a thread pool. This is
deferred to the first call to the aio_get_thread_pool() accessor. It is
hence forbidden to access the thread_pool field directly, as it may be
NULL. The accessor *must* be used always.
Fixes: ebac1202c9
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: qemu-stable@nongnu.org
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
42 lines
990 B
C
42 lines
990 B
C
/*
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* Virtio 9p backend
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*
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* Copyright IBM, Corp. 2010
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*
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* Authors:
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* Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
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* Venkateswararao Jujjuri(JV) <jvrao@linux.vnet.ibm.com>
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*
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* This work is licensed under the terms of the GNU GPL, version 2. See
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* the COPYING file in the top-level directory.
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*
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*/
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#include "qemu-common.h"
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#include "block/thread-pool.h"
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#include "qemu/coroutine.h"
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#include "qemu/main-loop.h"
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#include "virtio-9p-coth.h"
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/* Called from QEMU I/O thread. */
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static void coroutine_enter_cb(void *opaque, int ret)
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{
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Coroutine *co = opaque;
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qemu_coroutine_enter(co, NULL);
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}
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/* Called from worker thread. */
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static int coroutine_enter_func(void *arg)
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{
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Coroutine *co = arg;
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qemu_coroutine_enter(co, NULL);
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return 0;
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}
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void co_run_in_worker_bh(void *opaque)
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{
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Coroutine *co = opaque;
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thread_pool_submit_aio(aio_get_thread_pool(qemu_get_aio_context()),
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coroutine_enter_func, co, coroutine_enter_cb, co);
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}
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