From: Nick Piggin <nickpiggin@yahoo.com.au>
To: Linus Torvalds <torvalds@osdl.org>
Cc: Andrew Morton <akpm@osdl.org>, Jens Axboe <axboe@suse.de>,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH][RFC] splice support
Date: Thu, 30 Mar 2006 14:10:20 +1100 [thread overview]
Message-ID: <442B4C1C.4030308@yahoo.com.au> (raw)
In-Reply-To: <Pine.LNX.4.64.0603291624420.27203@g5.osdl.org>
Linus Torvalds wrote:
>
>On Wed, 29 Mar 2006, Andrew Morton wrote:
>
>>- splice() take a size_t length. Should it be taking a 64-bit length?
>>
>
>No. You can't splice more than the kernel buffers anyway (ie currently
>PIPE_BUFFERS pages, ie ~64kB, although in theory somebody could use large
>pages for it), so 64-bit would be total overkill.
>
>
But in that case you'll just end up blocking on the pipe won't you? I
think Andrew's talking about the syscall itself, which should be 64-bit
surely.
Hmm, with no "offset" parameter, you cannot splice-sendfile >4GB files...
Or am I going crazy? I see, it uses f_pos. Should it use offsets instead?
I guess you covered this in your earlier sys_splice discussions. I'll do
some research.
--
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next prev parent reply other threads:[~2006-03-30 6:20 UTC|newest]
Thread overview: 45+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-29 12:28 [PATCH][RFC] splice support Jens Axboe
2006-03-29 12:30 ` Jens Axboe
2006-03-29 13:15 ` Jeff Garzik
2006-03-29 13:27 ` Jens Axboe
2006-03-29 21:49 ` Nathan Scott
2006-03-29 20:06 ` Linus Torvalds
2006-03-29 20:42 ` Jens Axboe
2006-03-29 20:43 ` Jens Axboe
2006-03-29 21:14 ` Linus Torvalds
2006-03-30 6:17 ` Jens Axboe
2006-03-29 22:37 ` Andrew Morton
2006-03-30 0:50 ` Linus Torvalds
2006-03-30 1:04 ` Jeff Garzik
2006-03-30 1:20 ` Andrew Morton
2006-03-30 6:18 ` Jens Axboe
2006-03-30 2:08 ` Andrew Morton
2006-03-30 3:44 ` Nick Piggin
2006-03-30 7:21 ` Jens Axboe
2006-03-30 7:30 ` Andrew Morton
2006-03-30 7:33 ` Jens Axboe
2006-03-30 8:02 ` Jan Engelhardt
2006-03-30 3:10 ` Nick Piggin [this message]
2006-03-30 7:16 ` Jens Axboe
2006-03-30 8:09 ` Jan Engelhardt
2006-03-30 7:45 ` Jens Axboe
2006-03-30 8:02 ` Andrew Morton
2006-03-30 8:10 ` Jens Axboe
2006-03-30 8:25 ` Nick Piggin
2006-03-30 8:27 ` Andrew Morton
2006-03-30 8:50 ` Nick Piggin
2006-03-30 8:51 ` Jens Axboe
2006-03-30 9:15 ` Jens Axboe
2006-03-30 9:40 ` Andrew Morton
2006-03-30 9:45 ` Jens Axboe
2006-03-30 9:56 ` Andrew Morton
2006-03-30 10:01 ` Jens Axboe
2006-03-30 2:36 ` Nick Piggin
2006-03-30 7:00 ` Jens Axboe
2006-03-30 7:33 ` Nick Piggin
2006-03-30 8:54 ` KAMEZAWA Hiroyuki
2006-03-30 13:53 ` Jens Axboe
2006-03-30 14:05 ` KAMEZAWA Hiroyuki
2006-03-30 14:38 ` Jens Axboe
2006-03-30 14:55 ` KAMEZAWA Hiroyuki
-- strict thread matches above, loose matches on Subject: below --
2005-12-19 9:16 Jens Axboe
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