From mboxrd@z Thu Jan 1 00:00:00 1970 Subject: Re: hard question re: swap cache References: <20030527230406.4286.qmail@web41505.mail.yahoo.com> From: Sean Neakums Date: Wed, 28 May 2003 11:01:56 +0100 In-Reply-To: <20030527230406.4286.qmail@web41505.mail.yahoo.com> (Carl Spalletta's message of "Tue, 27 May 2003 16:04:06 -0700 (PDT)") Message-ID: <6ud6i3o0dn.fsf@zork.zork.net> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-linux-mm@kvack.org Return-Path: To: linux-mm@kvack.org List-ID: Carl Spalletta writes: > I thought of a simple example. Suppose processes a,b,c have a > shared, anonymous page. All processes have this page present. Then > the page for a is swapped out. Then b and c exit unexpectedly, > after making changes to the page. When and if 'a' has the page > swapped back in, what mechanism guarantees that it will see the > changes made by b and c? I don't think it makes much sense to say "the page for a" in the case of a shared page. -- Sean Neakums - -- 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-mm.org/ . Don't email: aart@kvack.org