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xen/balloon: fix balloon kthread freezing

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Commit 8480ed9c2bbd56 ("xen/balloon: use a kernel thread instead a
workqueue") switched the Xen balloon driver to use a kernel thread.
Unfortunately the patch omitted to call try_to_freeze() or to use
wait_event_freezable_timeout(), causing a system suspend to fail.

Fixes: 8480ed9c2bbd56 ("xen/balloon: use a kernel thread instead a workqueue")
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20210920100345.21939-1-jgross@suse.com
Signed-off-by: Juergen Gross <jgross@suse.com>
This commit is contained in:
Juergen Gross 2021-09-20 12:03:45 +02:00
parent 794d5b8a49
commit 96f5bd03e1
1 changed files with 2 additions and 2 deletions
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4
drivers/xen/balloon.c
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@ -522,8 +522,8 @@ static int balloon_thread(void *unused)
timeout = 3600 * HZ;
credit = current_credit();
wait_event_interruptible_timeout(balloon_thread_wq,
balloon_thread_cond(state, credit), timeout);
wait_event_freezable_timeout(balloon_thread_wq,
balloon_thread_cond(state, credit), timeout);
if (kthread_should_stop())
return 0;