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dm log-writes: Add missing set_freezable() for freezable kthread

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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: 0e9cebe724 ("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>
This commit is contained in:
Haotian Zhang 2025-12-01 15:41:03 +08:00 committed by Mikulas Patocka
parent 2f6cfd6d7c
commit ab08f9c8b3
1 changed files with 1 additions and 0 deletions
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drivers/md/dm-log-writes.c
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@ -432,6 +432,7 @@ static int log_writes_kthread(void *arg)
struct log_writes_c *lc = arg;
sector_t sector = 0;
set_freezable();
while (!kthread_should_stop()) {
bool super = false;
bool logging_enabled;