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From db5e1dfac375e869234340036cd232313c6d4d7b Mon Sep 17 00:00:00 2001
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From: Kevin Wolf <kwolf@redhat.com>
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Date: Fri, 14 Sep 2018 10:55:28 +0200
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Subject: [PATCH 37/49] test-blockjob: Acquire AioContext around
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job_cancel_sync()
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RH-Author: Kevin Wolf <kwolf@redhat.com>
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Message-id: <20180914105540.18077-31-kwolf@redhat.com>
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Patchwork-id: 82183
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O-Subject: [RHV-7.6 qemu-kvm-rhev PATCH 30/42] test-blockjob: Acquire AioContext around job_cancel_sync()
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Bugzilla: 1601212
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: Fam Zheng <famz@redhat.com>
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All callers in QEMU proper hold the AioContext lock when calling
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job_finish_sync(). test-blockjob should do the same when it calls the
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function indirectly through job_cancel_sync().
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Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Reviewed-by: Fam Zheng <famz@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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include/qemu/job.h | 6 ++++++
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tests/test-blockjob.c | 6 ++++++
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2 files changed, 12 insertions(+)
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diff --git a/include/qemu/job.h b/include/qemu/job.h
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index 407d549..35ac7a9 100644
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--- a/include/qemu/job.h
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+++ b/include/qemu/job.h
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@@ -509,6 +509,8 @@ void job_user_cancel(Job *job, bool force, Error **errp);
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*
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* Returns the return value from the job if the job actually completed
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* during the call, or -ECANCELED if it was canceled.
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+ *
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+ * Callers must hold the AioContext lock of job->aio_context.
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*/
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int job_cancel_sync(Job *job);
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@@ -526,6 +528,8 @@ void job_cancel_sync_all(void);
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* function).
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*
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* Returns the return value from the job.
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+ *
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+ * Callers must hold the AioContext lock of job->aio_context.
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*/
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int job_complete_sync(Job *job, Error **errp);
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@@ -551,6 +555,8 @@ void job_dismiss(Job **job, Error **errp);
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*
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* Returns 0 if the job is successfully completed, -ECANCELED if the job was
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* cancelled before completing, and -errno in other error cases.
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+ *
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+ * Callers must hold the AioContext lock of job->aio_context.
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*/
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int job_finish_sync(Job *job, void (*finish)(Job *, Error **errp), Error **errp);
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diff --git a/tests/test-blockjob.c b/tests/test-blockjob.c
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index de4c1c2..652d1e8 100644
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--- a/tests/test-blockjob.c
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+++ b/tests/test-blockjob.c
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@@ -223,6 +223,10 @@ static void cancel_common(CancelJob *s)
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BlockJob *job = &s->common;
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BlockBackend *blk = s->blk;
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JobStatus sts = job->job.status;
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+ AioContext *ctx;
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+
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+ ctx = job->job.aio_context;
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+ aio_context_acquire(ctx);
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job_cancel_sync(&job->job);
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if (sts != JOB_STATUS_CREATED && sts != JOB_STATUS_CONCLUDED) {
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@@ -232,6 +236,8 @@ static void cancel_common(CancelJob *s)
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assert(job->job.status == JOB_STATUS_NULL);
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job_unref(&job->job);
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destroy_blk(blk);
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+
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+ aio_context_release(ctx);
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}
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static void test_cancel_created(void)
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--
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1.8.3.1
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