linux-kernel - Re: per-thread rusage

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20070405040956.GO2986@holomorphy.com>
Date:	Wed, 4 Apr 2007 21:09:56 -0700
From:	William Lee Irwin III <wli@...omorphy.com>
To:	Valdis.Kletnieks@...edu
Cc:	linux-kernel@...r.kernel.org
Subject: Re: per-thread rusage

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@...edu 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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/