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| author | Len Brown <len.brown@intel.com> | 2015-07-31 12:46:17 -0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2015-07-31 23:46:05 +0200 |
| commit | 2fd77fff4b440c29b48c31db0ce2aec7d319959f (patch) | |
| tree | fe1c131b86a1cefe66e2ed2b7641b8c8db78c757 /kernel/crash_dump.c | |
| parent | 019d8817b1b064c2bacfbcf40fc68184438ad05a (diff) | |
| download | blackbird-op-linux-2fd77fff4b440c29b48c31db0ce2aec7d319959f.tar.gz blackbird-op-linux-2fd77fff4b440c29b48c31db0ce2aec7d319959f.zip | |
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>
Diffstat (limited to 'kernel/crash_dump.c')
0 files changed, 0 insertions, 0 deletions
