From e0f4bd26e29bf6162cdc9dc6fb7522bde7b74d07 Mon Sep 17 00:00:00 2001 From: Kevin Hao Date: Wed, 20 Dec 2023 08:35:35 +0800 Subject: [PATCH] PM: sleep: Remove obsolete comment from unlock_system_sleep() With the freezer changes introduced by commit f5d39b020809 ("freezer,sched: Rewrite core freezer logic"), the comment in unlock_system_sleep() has become obsolete, there is no need to retain it. Signed-off-by: Kevin Hao Signed-off-by: Rafael J. Wysocki --- kernel/power/main.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/kernel/power/main.c b/kernel/power/main.c index f6425ae3e8b0..b1ae9b677d03 100644 --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -60,22 +60,6 @@ EXPORT_SYMBOL_GPL(lock_system_sleep); void unlock_system_sleep(unsigned int flags) { - /* - * Don't use freezer_count() because we don't want the call to - * try_to_freeze() here. - * - * Reason: - * Fundamentally, we just don't need it, because freezing condition - * doesn't come into effect until we release the - * system_transition_mutex lock, since the freezer always works with - * system_transition_mutex held. - * - * More importantly, in the case of hibernation, - * unlock_system_sleep() gets called in snapshot_read() and - * snapshot_write() when the freezing condition is still in effect. - * Which means, if we use try_to_freeze() here, it would make them - * enter the refrigerator, thus causing hibernation to lockup. - */ if (!(flags & PF_NOFREEZE)) current->flags &= ~PF_NOFREEZE; mutex_unlock(&system_transition_mutex);