From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Mon, 2 Oct 2000 22:17:18 +0200 From: Andrea Arcangeli Subject: Re: [highmem bug report against -test5 and -test6] Re: [PATCH] Re: simple FS application that hangs 2.4-test5, mem mgmt problem or FS buffer cache mgmt problem? (fwd) Message-ID: <20001002221718.B21995@athlon.random> References: <20001002215628.D21473@athlon.random> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: ; from riel@conectiva.com.br on Mon, Oct 02, 2000 at 04:59:57PM -0300 Sender: owner-linux-mm@kvack.org Return-Path: To: Rik van Riel Cc: Ingo Molnar , linux-mm@kvack.org, Linus Torvalds , "Stephen C. Tweedie" List-ID: On Mon, Oct 02, 2000 at 04:59:57PM -0300, Rik van Riel wrote: > Linus, I remember you saying some time ago that you would > like to keep the buffer heads on a page around so we'd > have them at the point where we need to swap out again. That's one of the basic differences between the 2.2.x and 2.4.x page cache design. We don't reclaim the buffers at I/O completion time anymore in 2.4.x but we reclaim them only later when we run low on memory. Forbidding the bh to be reclaimed when we run low on memory is a bug and I don't think Linus ever suggested that. Andrea -- 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/