diff options
| author | Mike Galbraith <efault@gmx.de> | 2011-01-04 23:41:17 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-18 09:09:44 -0500 |
| commit | d7d8294415f0ce4254827d4a2a5ee88b00be52a8 (patch) | |
| tree | 9f8024d6566bc391fcb2aced8427db81ca4e9078 /kernel/futex_compat.c | |
| parent | fce2097983d914ea8c2338efc6f6e9bb737f6ae4 (diff) | |
sched: Fix signed unsigned comparison in check_preempt_tick()
Signed unsigned comparison may lead to superfluous resched if leftmost
is right of the current task, wasting a few cycles, and inadvertently
_lengthening_ the current task's slice.
Reported-by: Venkatesh Pallipadi <venki@google.com>
Signed-off-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <1294202477.9384.5.camel@marge.simson.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/futex_compat.c')
0 files changed, 0 insertions, 0 deletions