6.1-stable review patch. If anyone has any objections, please let me know.
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From: Haotian Zhang vulab@iscas.ac.cn
[ Upstream commit ab08f9c8b363297cafaf45475b08f78bf19b88ef ]
The log_writes_kthread() calls try_to_freeze() but lacks set_freezable(), rendering the freeze attempt ineffective since kernel threads are non-freezable by default. This prevents proper thread suspension during system suspend/hibernate.
Add set_freezable() to explicitly mark the thread as freezable.
Fixes: 0e9cebe72459 ("dm: add log writes target") Signed-off-by: Haotian Zhang vulab@iscas.ac.cn Reviewed-by: Benjamin Marzinski bmarzins@redhat.com Signed-off-by: Mikulas Patocka mpatocka@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/md/dm-log-writes.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c index efdfb2e1868a4..4241f40f9ad26 100644 --- a/drivers/md/dm-log-writes.c +++ b/drivers/md/dm-log-writes.c @@ -431,6 +431,7 @@ static int log_writes_kthread(void *arg) struct log_writes_c *lc = (struct log_writes_c *)arg; sector_t sector = 0;
+ set_freezable(); while (!kthread_should_stop()) { bool super = false; bool logging_enabled;