linux-kernel - Re: [RFC 01/22] Generic show

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Message-ID: <871w5nouwp.fsf@saeurebad.de>
Date:	Thu, 03 Apr 2008 16:49:42 +0200
From:	Johannes Weiner <hannes@...urebad.de>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	Heiko Carstens <heiko.carstens@...ibm.com>,
	linux-kernel@...r.kernel.org, linux-mm@...ck.org, mingo@...e.hu,
	davem@...emloft.net, hskinnemoen@...el.com, cooloney@...nel.org,
	starvik@...s.com, dhowells@...hat.com, ysato@...rs.sf.net,
	takata@...ux-m32r.org, geert@...ux-m68k.org, ralf@...ux-mips.org,
	kyle@...isc-linux.org, paulus@...ba.org, schwidefsky@...ibm.com,
	lethal@...ux-sh.org, jdike@...toit.com, miles@....org,
	chris@...kel.net, rmk@....linux.org.uk, tony.luck@...el.com
Subject: Re: [RFC 01/22] Generic show_mem() implementation

Hi,

Sam Ravnborg <sam@...nborg.org> writes:

>> e.g. we currently have this in arch/s390/Kconfig:
>> 
>> config S390
>>         def_bool y
>>         select HAVE_OPROFILE
>>         select HAVE_KPROBES
>>         select HAVE_KRETPROBES
>> 
>> just add a select HAVE_GENERIC_SHOWMEM or something like that in the arch
>> specific patches.
> Seconded.
> See Documentation/kbuild/kconfig-language.txt for a few more hints
> how to do it.

After more thinking about it, wouldn't it be better to have
HAVE_ARCH_SHOW_MEM in mm/Kconfig and let archs with their own show_mem()
select it?  Because there are far more archs that use the generic
version than those having their own.

	Hannes
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