diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2022-08-22 14:18:17 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-09-07 22:53:48 +0300 |
| commit | 5950e5d574c636a07dd21a872c2f8b41f6d20c55 (patch) | |
| tree | 77419bad4e34bcffa13046fc8c673b67276ccd7b /kernel/power/suspend.c | |
| parent | 0b9d46fc5ef7a457cc635b30b010081228cb81ac (diff) | |
| download | linux-5950e5d574c636a07dd21a872c2f8b41f6d20c55.tar.xz | |
freezer: Have {,un}lock_system_sleep() save/restore flags
Rafael explained that the reason for having both PF_NOFREEZE and
PF_FREEZER_SKIP is that {,un}lock_system_sleep() is callable from
kthread context that has previously called set_freezable().
In preparation of merging the flags, have {,un}lock_system_slee() save
and restore current->flags.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/r/20220822114648.725003428@infradead.org
Diffstat (limited to 'kernel/power/suspend.c')
| -rw-r--r-- | kernel/power/suspend.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/kernel/power/suspend.c b/kernel/power/suspend.c index 827075944d28..0d5f1fde6a3a 100644 --- a/kernel/power/suspend.c +++ b/kernel/power/suspend.c @@ -75,9 +75,11 @@ EXPORT_SYMBOL_GPL(pm_suspend_default_s2idle); void s2idle_set_ops(const struct platform_s2idle_ops *ops) { - lock_system_sleep(); + unsigned int sleep_flags; + + sleep_flags = lock_system_sleep(); s2idle_ops = ops; - unlock_system_sleep(); + unlock_system_sleep(sleep_flags); } static void s2idle_begin(void) @@ -200,7 +202,9 @@ __setup("mem_sleep_default=", mem_sleep_default_setup); */ void suspend_set_ops(const struct platform_suspend_ops *ops) { - lock_system_sleep(); + unsigned int sleep_flags; + + sleep_flags = lock_system_sleep(); suspend_ops = ops; @@ -216,7 +220,7 @@ void suspend_set_ops(const struct platform_suspend_ops *ops) mem_sleep_current = PM_SUSPEND_MEM; } - unlock_system_sleep(); + unlock_system_sleep(sleep_flags); } EXPORT_SYMBOL_GPL(suspend_set_ops); |