From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 8 Feb 2007 14:40:52 -0800 (PST) From: Christoph Lameter Subject: Re: Drop PageReclaim() In-Reply-To: <20070208143746.79c000f5.akpm@linux-foundation.org> Message-ID: References: <20070208140338.971b3f53.akpm@linux-foundation.org> <20070208142431.eb81ae70.akpm@linux-foundation.org> <20070208143746.79c000f5.akpm@linux-foundation.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-linux-mm@kvack.org Return-Path: To: Andrew Morton Cc: Hugh Dickins , linux-mm@kvack.org List-ID: On Thu, 8 Feb 2007, Andrew Morton wrote: > > Those sleeping on the page must have their own process context > > to do so. > > You've lost me. I don't see what that sort of thing has to do with > end_page_writeback() and rotate_reclaimable_page(). One could replace the PageReclaim bit with a process waiting on the writeback bit to clear. The process would then do the rotation. But that would require too many processes. Hmmm... Does not look as if I can get that bit freed up. It was always a mystery to me what the thing did. At least I know now. -- 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: email@kvack.org