Re: per-thread rusage

[William Lee Irwin III]

On Wed, 04 Apr 2007 10:29:31 PDT, William Lee Irwin III said:
>> Index: anon/include/linux/resource.h
>> ===================================================================
>> --- anon.orig/include/linux/resource.h	2007-04-04 09:57:41.239118534 0700
>> +++ anon/include/linux/resource.h	2007-04-04 09:57:59.840178548 -0700
>> @@ -18,7 +18,8 @@
>>   */
>>  #define	RUSAGE_SELF	0
>>  #define	RUSAGE_CHILDREN	(-1)
>> -#define RUSAGE_BOTH	(-2)		/* sys_wait4() uses this */
>> +#define RUSAGE_THREAD	(-2)
>> +#define RUSAGE_BOTH	(-3)		/* sys_wait4() uses this */

On Wed, Apr 04, 2007 at 06:36:47PM -0400, Valdis.Kletnieks@xxxxxx wrote:
> Umm.. I'm having a high-idiot-quotient day today, but don't you want to
> leave _BOTH at -2 and put _THREAD at -3, to avoid an ABI breakage?

It's a rather natural question. The answer is that RUSAGE_BOTH is only
ever used internally to the kernel, so there is no userspace ABI change.


-- wli
-
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