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From 9382be6ea4b3785bcc3a4868e1f69348157ba5b1 Mon Sep 17 00:00:00 2001
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From: Jeffrey Cody <jcody@redhat.com>
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Date: Tue, 28 Aug 2018 21:08:16 +0200
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Subject: [PATCH 03/29] block: for jobs, do not clear user_paused until after
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the resume
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RH-Author: Jeffrey Cody <jcody@redhat.com>
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Message-id: <b7236ceff2905bca32576f0932fe569344ecbc5e.1535490170.git.jcody@redhat.com>
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Patchwork-id: 81957
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O-Subject: [RHEL-7.6 qemu-kvm-rhev PATCH 1/3] block: for jobs, do not clear user_paused until after the resume
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Bugzilla: 1605026
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RH-Acked-by: Max Reitz <mreitz@redhat.com>
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RH-Acked-by: John Snow <jsnow@redhat.com>
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RH-Acked-by: Miroslav Rezanina <mrezanin@redhat.com>
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The function job_cancel_async() will always cause an assert for blockjob
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user resume. We set job->user_paused to false, and then call
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job->driver->user_resume(). In the case of blockjobs, this is the
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block_job_user_resume() function.
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In that function, we assert that job.user_paused is set to true.
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Unfortunately, right before calling this function, it has explicitly
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been set to false.
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The fix is pretty simple: set job->user_paused to false only after the
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job user_resume() function has been called.
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Reviewed-by: John Snow <jsnow@redhat.com>
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Reviewed-by: Eric Blake <eblake@redhat.com>
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Signed-off-by: Jeff Cody <jcody@redhat.com>
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Message-id: bb183b77d8f2dd6bd67b8da559a90ac1e74b2052.1534868459.git.jcody@redhat.com
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Signed-off-by: Jeff Cody <jcody@redhat.com>
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(cherry picked from commit e321c0597c7590499bacab239d7f86e257f96bcd)
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Signed-off-by: Jeff Cody <jcody@redhat.com>
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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job.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/job.c b/job.c
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index 84e1402..95dc998 100644
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--- a/job.c
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+++ b/job.c
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@@ -727,10 +727,10 @@ static void job_cancel_async(Job *job, bool force)
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{
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if (job->user_paused) {
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/* Do not call job_enter here, the caller will handle it. */
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- job->user_paused = false;
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if (job->driver->user_resume) {
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job->driver->user_resume(job);
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}
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+ job->user_paused = false;
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assert(job->pause_count > 0);
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job->pause_count--;
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}
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--
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1.8.3.1
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