Message-ID: <4A5423F9.3010102@davidnewall.com>
Date: Wed, 08 Jul 2009 14:13:37 +0930
From: David Newall <davidn@davidnewall.com>
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To: Changli Gao <xiaosuo@gmail.com>
CC: Zan Lynx <zlynx@acm.org>, Denys Vlasenko <vda.linux@googlemail.com>,
       Albert ARIBAUD <albert.aribaud@free.fr>,
       Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Amerigo Wang <xiyou.wangcong@gmail.com>,
       Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: PROPOSAL: extend pipe() to support NULL argument.
References: <20090703015554.GB5880@cr0.nay.redhat.com>	 <412e6f7f0907030259m5556ee2fobbb58d377bce4d17@mail.gmail.com>	 <4A4DDD54.9030206@free.fr>	 <200907070643.56394.vda.linux@googlemail.com>	 <412e6f7f0907070045o6a17fb10x557108ffde0da11@mail.gmail.com>	 <4A53B202.9080505@davidnewall.com> <4A53B7DB.5050105@acm.org> <412e6f7f0907072141x6de32dddj139c7bc1435d3bf6@mail.gmail.com>
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Changli Gao wrote:
> On Wed, Jul 8, 2009 at 5:02 AM, Zan Lynx<zlynx@acm.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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