linux/kernel/power
Len Brown 2fd77fff4b PM / suspend: make sync() on suspend-to-RAM build-time optional
The Linux kernel suspend path has traditionally invoked sys_sync()
before freezing user threads.

But sys_sync() can be expensive, and some user-space OS's do not want
the kernel to pay the cost of sys_sync() on every suspend -- preferring
invoke sync() from user-space if/when they want it.

So make sys_sync on suspend build-time optional.

The default is unchanged.

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2015-07-31 23:46:05 +02:00
..
autosleep.c PM / Sleep: avoid 'autosleep' in shutdown progress 2013-07-15 01:31:37 +02:00
console.c arm, pm, vmpressure: add missing slab.h includes 2014-02-03 13:24:01 -05:00
hibernate.c PM / hibernate: re-enable nonboot cpus on disable_nonboot_cpus() failure 2015-06-24 23:48:44 +02:00
Kconfig PM / suspend: make sync() on suspend-to-RAM build-time optional 2015-07-31 23:46:05 +02:00
main.c PM / sleep: Fix symbol name in a comment in kernel/power/main.c 2015-05-13 15:31:12 +02:00
Makefile suspend: simplify block I/O handling 2015-05-19 09:19:59 -06:00
power.h suspend: simplify block I/O handling 2015-05-19 09:19:59 -06:00
poweroff.c power/sysrq: fix inconstistent help message of sysrq key 2013-04-30 17:04:10 -07:00
process.c oom, PM: make OOM detection in the freezer path raceless 2015-02-11 17:06:03 -08:00
qos.c PM / QoS: Add debugfs support to view the list of constraints 2015-01-23 22:16:21 +01:00
snapshot.c Revert "PM / hibernate: avoid unsafe pages in e820 reserved regions" 2015-04-07 01:13:23 +02:00
suspend_test.c PM / sleep: Enhance test_suspend option with repeat capability 2014-09-09 01:48:02 +02:00
suspend.c PM / suspend: make sync() on suspend-to-RAM build-time optional 2015-07-31 23:46:05 +02:00
swap.c suspend: simplify block I/O handling 2015-05-19 09:19:59 -06:00
user.c PM / hibernate: introduce "nohibernate" boot parameter 2014-06-16 23:29:39 +02:00
wakelock.c PM / autosleep: Use workqueue for user space wakeup sources garbage collector 2015-07-14 21:04:48 +02:00