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[PATCH] i386 apm.c optimization
authorAndreas Mohr <andi@rhlx01.fht-esslingen.de>
Fri, 23 Jun 2006 09:04:17 +0000 (02:04 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 23 Jun 2006 14:42:56 +0000 (07:42 -0700)
commit87af2ffd4ccd0e6a2ff316fd008a9bedb4a4cb66
tree4cd80cf123aa220e5c1c3c534bf09fa8d001ad28tree | snapshot (tar.gz zip)
parenta0b4da91f4c5710b9c20219a19e905145647b48bcommit | diff
[PATCH] i386 apm.c optimization

- avoid expensive modulo (integer division) which happened
  since APM_MAX_EVENTS is 20 (non-power-of-2)
- kill compiler warnings by initializing two variables
- add __read_mostly to some important static variables that are read often
  (by idle loop etc.)
- constify several structures

Signed-off-by: Andreas Mohr <andi@lisas.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/i386/kernel/apm.c diff | blob | blame | history