linux-kernel - Re: [PATCH] sendfile removal

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Date:	Fri, 01 Jun 2007 17:22:19 +0100
From:	Pádraig Brady <P@...igBrady.com>
To:	"H. Peter Anvin" <hpa@...or.com>
CC:	Eric Dumazet <dada1@...mosbay.com>,
	Jens Axboe <jens.axboe@...cle.com>,
	linux-kernel@...r.kernel.org, cotte@...ibm.com, hugh@...itas.com,
	neilb@...e.de, zanussi@...ibm.com,
	Linus Torvalds <torvalds@...l.org>, hch@...radead.org
Subject: Re: [PATCH] sendfile removal

H. Peter Anvin wrote:
> Eric Dumazet wrote:
>> As I said, this new non blocking feature on the input side (disk), is
>> nice and usefull. (For people scared by splice() syscall :) )
>>
>> Just have to mention it is a change of behavior, and documentation
>> probably needs to reflect this change. "Since linux 2.6.23, sendfile()
>> repects O_NONBLOCK on in_fd as well"
>>
> 
> Fair enough.  Unix has traditionally not acknowledged the possibility of
> nonblocking I/O on conventional files, for some odd reason.

That reminds me of this patch:
http://lkml.org/lkml/2004/10/1/217
which went in for a while but was reverted:
http://lkml.org/lkml/2004/10/17/17

Pádraig
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