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Open Source and information security mailing list archives
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Date: Tue, 18 May 2010 12:10:39 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: Mathieu Desnoyers <mathieu.desnoyers@...icios.com> Cc: Peter Zijlstra <peterz@...radead.org>, Frederic Weisbecker <fweisbec@...il.com>, Pierre Tardy <tardyp@...il.com>, Ingo Molnar <mingo@...e.hu>, Arnaldo Carvalho de Melo <acme@...hat.com>, Tom Zanussi <tzanussi@...il.com>, Paul Mackerras <paulus@...ba.org>, linux-kernel@...r.kernel.org, arjan@...radead.org, ziga.mahkovec@...il.com, davem <davem@...emloft.net>, linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>, KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>, Christoph Lameter <cl@...ux-foundation.org>, Tejun Heo <tj@...nel.org>, Jens Axboe <jens.axboe@...cle.com>, Linus Torvalds <torvalds@...ux-foundation.org>, Nick Piggin <npiggin@...e.de> Subject: Re: Unexpected splice "always copy" behavior observed On Tue, 2010-05-18 at 11:53 -0400, Steven Rostedt wrote: > I'm currently looking at the network code to see if it is better. The network code seems to do the right thing. It sends the actual page directly to the network. Hopefully we can find a way to avoid the copy to file. But the splice code was created to avoid the copy to and from userspace, it did not guarantee no copy within the kernel itself. -- Steve -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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