From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Tue, 11 Apr 2000 14:40:37 -0300 (BRST) From: Rik van Riel Reply-To: riel@nl.linux.org Subject: Re: [patch] take 2 Re: PG_swap_entry bug in recent kernels In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andrea Arcangeli Cc: Kanoj Sarcar , Ben LaHaise , Linus Torvalds , linux-mm@kvack.org List-ID: On Tue, 11 Apr 2000, Andrea Arcangeli wrote: > On Mon, 10 Apr 2000, Kanoj Sarcar wrote: > > >While forking, a parent might copy a swap handle into the child, but we > > That's a bug in fork. Simply let fork to check if the swaphandle > is SWAPOK or not before increasing the swap count. If it's > SWAPOK then swap_duplicate succesfully, "it was hard to write, it should be hard to maintain" Relying on pieces of magic like this, spread out all over the kernel source will make the code more fragile and hell to maintain. Unless somebody writes the documentation for all of this, of course... regards, Rik -- The Internet is not a network of computers. It is a network of people. That is its real strength. Wanna talk about the kernel? irc.openprojects.net / #kernelnewbies http://www.conectiva.com/ http://www.surriel.com/ -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux.eu.org/Linux-MM/