Messages in this thread | | | Date | Thu, 18 Mar 2010 20:02:05 -0700 (PDT) | Subject | Re: [BUG] percpu misaligned allocation | From | David Miller <> |
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From: Tejun Heo <tj@kernel.org> Date: Fri, 19 Mar 2010 11:18:51 +0900
> On 03/19/2010 10:57 AM, David Miller wrote: >> I would use u64 so something like: >> >> u64 [FTRACE_MAX_PROFILE_SIZE / sizeof(u64)] > > <paranoid>DIV_ROUND_UP() would be safer than division</paranoid>
There's potential real trouble if it isn't a multiple of sizeof(u64) so better:
BUILD_BUG_ON(FTRACE_MAX_PROFILE_SIZE % sizeof(u64));
:-)
What a mess, just because this thing can't be typed properly :-/
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