PM / Sleep: Use the freezer_count() functions in [un]lock_system_sleep() APIs
Now that freezer_count() and freezer_do_not_count() don't have the restriction that they are effective only when called by userspace processes, use them in lock_system_sleep() and unlock_system_sleep() instead of open-coding their parts. Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Acked-by: Tejun Heo <tj@kernel.org> Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
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@ -6,6 +6,7 @@
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#include <linux/init.h>
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#include <linux/pm.h>
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#include <linux/mm.h>
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#include <linux/freezer.h>
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#include <asm/errno.h>
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#ifdef CONFIG_VT
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@ -380,16 +381,14 @@ static inline void unlock_system_sleep(void) {}
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static inline void lock_system_sleep(void)
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{
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/* simplified freezer_do_not_count() */
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current->flags |= PF_FREEZER_SKIP;
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freezer_do_not_count();
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mutex_lock(&pm_mutex);
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}
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static inline void unlock_system_sleep(void)
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{
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mutex_unlock(&pm_mutex);
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/* simplified freezer_count() */
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current->flags &= ~PF_FREEZER_SKIP;
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freezer_count();
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}
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#endif
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