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| author | Thomas Renninger <[email protected]> | 2011-11-04 02:33:46 +0000 |
|---|---|---|
| committer | Len Brown <[email protected]> | 2011-11-07 01:48:42 +0000 |
| commit | 362b646062b2073bd5c38efb42171d86e4f717e6 (patch) | |
| tree | 6c98cdb7aa5d9be22e2b24ca06b822455ef4b9f5 /lib/mpi/mpi-cmp.c | |
| parent | Linux 3.1 (diff) | |
| download | kernel-362b646062b2073bd5c38efb42171d86e4f717e6.tar.gz kernel-362b646062b2073bd5c38efb42171d86e4f717e6.zip | |
ACPI: Export FADT pm_profile integer value to userspace
There are a lot userspace approaches to detect the usage of the
platform (laptop, workstation, server, ...) and adjust kernel tunables
accordingly (io/process scheduler, power management, ...).
These approaches need constant maintaining and are ugly to implement
(detect PCMCIA controller -> laptop,
does not work on recent systems anymore, ...)
On ACPI systems there is an easy and reliable way (if implemented
in BIOS and most recent platforms have this value set).
-> export it to userspace.
Signed-off-by: Thomas Renninger <[email protected]>
Acked-by: Rafael J. Wysocki <[email protected]>
Signed-off-by: Len Brown <[email protected]>
Diffstat (limited to 'lib/mpi/mpi-cmp.c')
0 files changed, 0 insertions, 0 deletions