Re: [PATCH] zero^H^H^H^Hsingle copy pipe

Alan Cox (alan@lxorguk.ukuu.org.uk)
Mon, 7 May 2001 22:33:06 +0100 (BST)

> The main problem is that map_user_kiobuf() locks pages into memory.
> It's a bad idea for pipes. Either we must severely limit the maximum

You only have to map them for the actual copy.

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