linux-kernel - Re: PROPOSAL: extend pipe() to support NULL argument.

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Message-ID: <4A5423F9.3010102@davidnewall.com>
Date:	Wed, 08 Jul 2009 14:13:37 +0930
From:	David Newall <davidn@...idnewall.com>
To:	Changli Gao <xiaosuo@...il.com>
CC:	Zan Lynx <zlynx@....org>,
	Denys Vlasenko <vda.linux@...glemail.com>,
	Albert ARIBAUD <albert.aribaud@...e.fr>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Amerigo Wang <xiyou.wangcong@...il.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: PROPOSAL: extend pipe() to support NULL argument.

Changli Gao wrote:
> On Wed, Jul 8, 2009 at 5:02 AM, Zan Lynx<zlynx@....org> wrote:
>   
>> But perhaps mkfifo(NULL) should be the syscall chosen to extend since its
>> parameters are much like open() already, and it seems to work in the above
>> sequence to create a one-FD FIFO already.
>>
>>     
> It sounds a good idea.
>   

I disagree.  I disbelieve that the cost of two fds per pipe is too high.
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