linux-kernel - Re: [Patch 2/3] sysctl: add proc_do_large

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Message-ID: <4BC2BE6A.4030500@redhat.com>
Date:	Mon, 12 Apr 2010 14:32:10 +0800
From:	Cong Wang <amwang@...hat.com>
To:	Changli Gao <xiaosuo@...il.com>
CC:	linux-kernel@...r.kernel.org,
	Octavian Purdila <opurdila@...acom.com>, ebiederm@...ssion.com,
	Eric Dumazet <eric.dumazet@...il.com>, netdev@...r.kernel.org,
	Neil Horman <nhorman@...driver.com>,
	David Miller <davem@...emloft.net>
Subject: Re: [Patch 2/3] sysctl: add proc_do_large_bitmap

Changli Gao wrote:
> On Fri, Apr 9, 2010 at 6:11 PM, Amerigo Wang <amwang@...hat.com> wrote:
>> From: Octavian Purdila <opurdila@...acom.com>
>>
>> The new function can be used to read/write large bitmaps via /proc. A
>> comma separated range format is used for compact output and input
>> (e.g. 1,3-4,10-10).
>>
>> Writing into the file will first reset the bitmap then update it
>> based on the given input.
>>
> 
> We have bitmap_scnprintf() and bitmap_parse_user(), why invent a new suite?
> 
> 

Because they don't accept '-'.

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