From: Kevin Hao <haokexin@gmail.com>
To: Andreas Gruenbacher <agruenba@redhat.com>
Cc: gfs2@lists.linux.dev, "Rafael J. Wysocki" <rafael@kernel.org>,
Pavel Machek <pavel@ucw.cz>
Subject: [PATCH 1/2] gfs2: Add missing set_freezable() for freezable kthread
Date: Mon, 18 Dec 2023 13:35:57 +0800 [thread overview]
Message-ID: <20231218053558.1200822-1-haokexin@gmail.com> (raw)
The kernel thread function gfs2_logd() and gfs2_quotad() invoke the
try_to_freeze() in its loop. But all the kernel threads are no-freezable
by default. So if we want to make a kernel thread to be freezable,
we have to invoke set_freezable() explicitly.
Signed-off-by: Kevin Hao <haokexin@gmail.com>
---
fs/gfs2/log.c | 1 +
fs/gfs2/quota.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c
index e5271ae87d1c..a268b69bb636 100644
--- a/fs/gfs2/log.c
+++ b/fs/gfs2/log.c
@@ -1297,6 +1297,7 @@ int gfs2_logd(void *data)
struct gfs2_sbd *sdp = data;
unsigned long t = 1;
+ set_freezable();
while (!kthread_should_stop()) {
if (gfs2_withdrawn(sdp))
break;
diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index fa47824acf13..173581736a6e 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -1583,6 +1583,7 @@ int gfs2_quotad(void *data)
unsigned long quotad_timeo = 0;
unsigned long t = 0;
+ set_freezable();
while (!kthread_should_stop()) {
if (gfs2_withdrawn(sdp))
break;
--
2.39.2
next reply other threads:[~2023-12-18 5:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-18 5:35 Kevin Hao [this message]
2023-12-18 5:35 ` [PATCH 2/2] gfs2: Use wait_event_freezable_timeout() for freezable kthread Kevin Hao
2023-12-21 14:11 ` Andreas Gruenbacher
2023-12-21 14:10 ` [PATCH 1/2] gfs2: Add missing set_freezable() " Andreas Gruenbacher
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