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Commit 3a0f951e authored by Juergen Gross's avatar Juergen Gross Committed by Greg Kroah-Hartman
Browse files

xen/balloon: fix balloon kthread freezing 



commit 96f5bd03e1be606987644b71899ea56a8d05f825 upstream.

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: default avatarJuergen Gross <jgross@suse.com>
Reviewed-by: default avatarBoris Ostrovsky <boris.ostrovsky@oracle.com>
Link: https://lore.kernel.org/r/20210920100345.21939-1-jgross@suse.com


Signed-off-by: default avatarJuergen Gross <jgross@suse.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent f80b6793

drivers/xen/balloon.c

+2 −2
Original line number Diff line number Diff line
@@ -539,7 +539,7 @@ static int balloon_thread(void *unused) 
			timeout = 3600 * HZ;

		credit = current_credit();



		wait_event_interruptible_timeout(balloon_thread_wq,

		wait_event_freezable_timeout(balloon_thread_wq,

			balloon_thread_cond(state, credit), timeout);



		if (kthread_should_stop())