linux-kernel - Re: [PATCH] perf lock: Implement basic sorting function of perf lock

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Date:	Mon, 28 Dec 2009 11:58:18 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	Hitoshi Mitake <mitake@....info.waseda.ac.jp>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Paul Mackerras <paulus@...ba.org>,
	Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [PATCH] perf lock: Implement basic sorting function of perf
 lock

On Sun, 2009-12-20 at 11:56 +0900, Hitoshi Mitake wrote:
> +#define SINGLE_KEY(member)                                     \
> +       static int lock_stat_key_ ## member(struct lock_stat *one,      \
> +                                        struct lock_stat *two)         \
> +       {                                                               \
> +       if (one->member > two->member)                                  \
> +               return 1;                                               \
> +       else                                                            \
> +               return 0;                                               \
> +       } 

Seems to me:

	return one->member > two->member;

Should suffice, no?

[ I usually call the arguments to a comparator (l)eft/(r)ight or a/b,
  but I guess one/two works too :-) ]

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