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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2010-12-09 14:15:34 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2010-12-16 11:17:46 +0100 |
| commit | fe44d62122829959e960bc699318d58966922a69 (patch) | |
| tree | bacb96098cffa7b7b8d80506a2026b5125557f2a /drivers/dca | |
| parent | dbd87b5af055a0cc9bba17795c9a2b0d17795389 (diff) | |
| download | linux-fe44d62122829959e960bc699318d58966922a69.tar.bz2 | |
sched: Fix the irqtime code to deal with u64 wraps
Some ARM systems have a short sched_clock() [ which needs to be fixed
too ], but this exposed a bug in the irq_time code as well, it doesn't
deal with wraps at all.
Fix the irq_time code to deal with u64 wraps by re-writing the code to
only use delta increments, which avoids the whole issue.
Reviewed-by: Venkatesh Pallipadi <venki@google.com>
Reported-by: Mikael Pettersson <mikpe@it.uu.se>
Tested-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1292242433.6803.199.camel@twins>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/dca')
0 files changed, 0 insertions, 0 deletions