From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Thu, 20 Mar 2003 15:20:45 -0800 From: William Lee Irwin III Subject: Re: [PATCH] anobjrmap 3/6 unchained Message-ID: <20030320232045.GC1240@holomorphy.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org Return-Path: To: Hugh Dickins Cc: Andrew Morton , linux-kernel@vger.kernel.org, linux-mm@kvack.org List-ID: On Thu, Mar 20, 2003 at 11:15:06PM +0000, Hugh Dickins wrote: > Removed nr_reverse_maps, ReverseMaps: easily reverted if that > poses a vmstat or meminfo compatibility problem, or someone is > still interested in that number; but objrmap wasn't maintaining > it, and if they don't occupy space, is it worth showing? > Besides, look at page_dup_rmap for copy_page_range: I don't > want to clutter that with inc_page_state(nr_reverse_maps). It was mostly to determine space savings and internal fragmentation on the pte_chain objects. It also helps get some notion of internal fragmentation on pagetables. It's of low importance; delete at will. -- wli -- 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