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From: Dan Mick <dan.mick@sun.com>
To: Arnd Bergmann <arnd@arndb.de>
Cc: Gerd Hoffmann <kraxel@redhat.com>,
	linux-arch@vger.kernel.org, Matthew Wilcox <matthew@wil.cx>,
	opensolaris-code@opensolaris.org, linux-kernel@vger.kernel.org,
	opensolaris-rfe@opensolaris.org,
	Ulrich Drepper <drepper@redhat.com>
Subject: Re: [osol-code] [PATCH v2] Add preadv and pwritev system calls.
Date: Tue, 16 Dec 2008 17:45:45 -0800	[thread overview]
Message-ID: <494859C9.20305@sun.com> (raw)
In-Reply-To: <200812161057.03025.arnd@arndb.de>

Arnd Bergmann wrote:
> On Monday 15 December 2008, Gerd Hoffmann wrote:
>> Jennifer Pioch wrote:
>>> On 12/12/08, Gerd Hoffmann <kraxel@redhat.com> wrote:
>>>> Free- and OpenBSD have it too.  For Solaris I've found a feature request
>>>>  only.  Dunno about MacOS/Darwin.  Other un*xes which are important these
>>>>  days?
>>> Do you know the ID of the feature request?
>> #1167819 @ bugs.opensolaris.org
>>
> 
> Looks like they've been working on it for some time:
> "Submit Date   25-MAY-1994"!
> 
> 	Arnd <><

No one's expended any serious time on it at all, it looks like, other than 
discussion.

I see the one comment says that it can be done with lio_listio(3RT) (apparently 
in LIO_WAIT mode), and that interface does seem to offer all the preadv/pwritev
functionality.  That's not to say that we shouldn't implement preadv/pwritev 
literally, just that there should be a way to get that sort of functionality today.

WARNING: multiple messages have this Message-ID (diff)
From: Dan Mick <dan.mick-xsfywfwIY+M@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: linux-arch-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	Matthew Wilcox <matthew-Ztpu424NOJ8@public.gmane.org>,
	opensolaris-code-xZgeD5Kw2fzokhkdeNNY6A@public.gmane.org,
	linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	opensolaris-rfe-xZgeD5Kw2fzokhkdeNNY6A@public.gmane.org,
	Gerd Hoffmann <kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
	Ulrich Drepper <drepper-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>
Subject: Re: [PATCH v2] Add preadv and pwritev system calls.
Date: Tue, 16 Dec 2008 17:45:45 -0800	[thread overview]
Message-ID: <494859C9.20305@sun.com> (raw)
In-Reply-To: <200812161057.03025.arnd-r2nGTMty4D4@public.gmane.org>

Arnd Bergmann wrote:
> On Monday 15 December 2008, Gerd Hoffmann wrote:
>> Jennifer Pioch wrote:
>>> On 12/12/08, Gerd Hoffmann <kraxel-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org> wrote:
>>>> Free- and OpenBSD have it too.  For Solaris I've found a feature request
>>>>  only.  Dunno about MacOS/Darwin.  Other un*xes which are important these
>>>>  days?
>>> Do you know the ID of the feature request?
>> #1167819 @ bugs.opensolaris.org
>>
> 
> Looks like they've been working on it for some time:
> "Submit Date   25-MAY-1994"!
> 
> 	Arnd <><

No one's expended any serious time on it at all, it looks like, other than 
discussion.

I see the one comment says that it can be done with lio_listio(3RT) (apparently 
in LIO_WAIT mode), and that interface does seem to offer all the preadv/pwritev
functionality.  That's not to say that we shouldn't implement preadv/pwritev 
literally, just that there should be a way to get that sort of functionality today.

  reply	other threads:[~2008-12-17  2:12 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-12-12 14:00 [PATCH v2] Add preadv and pwritev system calls Gerd Hoffmann
2008-12-12 15:29 ` Matthew Wilcox
2008-12-12 15:48   ` Gerd Hoffmann
2008-12-12 15:51     ` Matthew Wilcox
2008-12-12 16:02       ` Gerd Hoffmann
2008-12-12 17:03         ` Matthew Wilcox
2008-12-12 18:21           ` Alan Cox
2008-12-12 19:02             ` Russell King
2008-12-12 18:29         ` Scott Lurndal
2008-12-12 19:07           ` Russell King
2008-12-12 19:56             ` Gerd Hoffmann
2008-12-12 19:56               ` Gerd Hoffmann
2008-12-12 20:12               ` Russell King
2008-12-12 20:39                 ` Gerd Hoffmann
2008-12-12 20:39                   ` Gerd Hoffmann
2008-12-14 18:19               ` Pavel Machek
2008-12-15 16:37         ` Jennifer Pioch
2008-12-15 20:43           ` Gerd Hoffmann
2008-12-16  9:57             ` Arnd Bergmann
2008-12-17  1:45               ` Dan Mick [this message]
2008-12-17  1:45                 ` Dan Mick
2008-12-12 19:47   ` Arnd Bergmann
2008-12-12 20:02     ` Gerd Hoffmann
2008-12-14 11:49   ` Heiko Carstens
2008-12-15  4:14   ` Paul Mackerras
2008-12-15  6:20     ` David Miller
2008-12-12 15:40 ` Ralf Baechle
2008-12-12 16:59 ` Russell King
2008-12-13  1:18 ` Michael Kerrisk

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