linux-kernel - Re: [PATCH v2 2/7] Documentation/devices.txt: Mark /dev/oldmem obsolete

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Date:	Mon, 27 May 2013 09:54:19 +0800
From:	Zhang Yanfei <zhangyanfei@...fujitsu.com>
To:	HATAYAMA Daisuke <d.hatayama@...fujitsu.com>
CC:	Zhang Yanfei <zhangyanfei.yes@...il.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Vivek Goyal <vgoyal@...hat.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Simon Horman <horms@...ge.net.au>,
	"kexec@...ts.infradead.org" <kexec@...ts.infradead.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/7] Documentation/devices.txt: Mark /dev/oldmem obsolete

于 2013年05月27日 09:46, HATAYAMA Daisuke 写道:
> (2013/05/26 15:36), Zhang Yanfei wrote:
>> From: Zhang Yanfei <zhangyanfei@...fujitsu.com>
>>
>> Signed-off-by: Zhang Yanfei <zhangyanfei@...fujitsu.com>
>> Cc: Dave Jones <davej@...hat.com>
>> ---
>>   Documentation/devices.txt |    3 +--
>>   1 files changed, 1 insertions(+), 2 deletions(-)
>>
>> diff --git a/Documentation/devices.txt b/Documentation/devices.txt
>> index 08f01e7..c8e4002 100644
>> --- a/Documentation/devices.txt
>> +++ b/Documentation/devices.txt
>> @@ -100,8 +100,7 @@ Your cooperation is appreciated.
>>            10 = /dev/aio        Asynchronous I/O notification interface
>>            11 = /dev/kmsg        Writes to this come out as printk's, reads
>>                       export the buffered printk records.
>> -         12 = /dev/oldmem    Used by crashdump kernels to access
>> -                    the memory of the kernel that crashed.
>> +         12 = /dev/oldmem    OBSOLETE
>>
>>     1 block    RAM disk
>>             0 = /dev/ram0        First RAM disk
>>
> 
> This is the new patch. Looking at other parts of devices.txt, obsolete is
> sometimes used together with unused. I guess obsolete means this is old interface so
> don't use it as much as possible and unused means this is not used at all now.
> You remove old memory interface completely in this patch set, so is it better to add
> unused, too?
> 

Does obsolete also mean "not used anymore"? I don't know. I think we can wait for some native
English speakers to comment on this.

Thanks
Zhang
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