tree 4ce6afb8ec12c2d411546a8c70aeeb73c20e8e53
parent a1cbcaa9ea87b87a96b9fc465951dcf36e459ca2
author libin <huawei.libin@huawei.com> 1365403152 +0800
committer Ingo Molnar <mingo@kernel.org> 1365420183 +0200

sched/debug: Fix sd->*_idx limit range avoiding overflow

Commit 201c373e8e ("sched/debug: Limit sd->*_idx range on
sysctl") was an incomplete bug fix.

This patch fixes sd->*_idx limit range to [0 ~ CPU_LOAD_IDX_MAX-1]
avoiding array overflow caused by setting sd->*_idx to CPU_LOAD_IDX_MAX
on sysctl.

Signed-off-by: Libin <huawei.libin@huawei.com>
Cc: <jiang.liu@huawei.com>
Cc: <guohanjun@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/51626610.2040607@huawei.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>