From 596c3a20754aea9470b4a92cec925d0feeca50c7 Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 8 Apr 2003 21:29:58 -0700 Subject: [PATCH] remove nr_reverse_maps VM accounting Maintaining the `nr_reverse_maps' provides makes a small but measurable decrease in page_add_rmap() overhead. I don't think it's a very useful metric, and it can be sort-of inferred from slabinfo. --- include/linux/page-flags.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index efe51537c564..b4d254418509 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -83,7 +83,6 @@ struct page_state { unsigned long nr_dirty; /* Dirty writeable pages */ unsigned long nr_writeback; /* Pages under writeback */ unsigned long nr_page_table_pages;/* Pages used for pagetables */ - unsigned long nr_reverse_maps; /* includes PageDirect */ unsigned long nr_mapped; /* mapped into pagetables */ unsigned long nr_slab; /* In slab */ #define GET_PAGE_STATE_LAST nr_slab -- cgit v1.2.3