From cbe37d093707762fc0abb280781e6a82a9d8d568 Mon Sep 17 00:00:00 2001 From: Badari Pulavarty Date: Tue, 21 Jun 2005 17:14:52 -0700 Subject: [PATCH] mm: remove PG_highmem Remove PG_highmem, to save a page flag. Use is_highmem() instead. It'll generate a little more code, but we don't use PageHigheMem() in many places. Signed-off-by: Badari Pulavarty Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/page-flags.h | 31 +++++++++++++++---------------- 1 file changed, 15 insertions(+), 16 deletions(-) (limited to 'include') diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h index 39ab8c6b565..df313891db1 100644 --- a/include/linux/page-flags.h +++ b/include/linux/page-flags.h @@ -61,21 +61,20 @@ #define PG_active 6 #define PG_slab 7 /* slab debug (Suparna wants this) */ -#define PG_highmem 8 -#define PG_checked 9 /* kill me in 2.5.. */ -#define PG_arch_1 10 -#define PG_reserved 11 - -#define PG_private 12 /* Has something at ->private */ -#define PG_writeback 13 /* Page is under writeback */ -#define PG_nosave 14 /* Used for system suspend/resume */ -#define PG_compound 15 /* Part of a compound page */ - -#define PG_swapcache 16 /* Swap page: swp_entry_t in private */ -#define PG_mappedtodisk 17 /* Has blocks allocated on-disk */ -#define PG_reclaim 18 /* To be reclaimed asap */ -#define PG_nosave_free 19 /* Free, should not be written */ -#define PG_uncached 20 /* Page has been mapped as uncached */ +#define PG_checked 8 /* kill me in 2.5.. */ +#define PG_arch_1 9 +#define PG_reserved 10 +#define PG_private 11 /* Has something at ->private */ + +#define PG_writeback 12 /* Page is under writeback */ +#define PG_nosave 13 /* Used for system suspend/resume */ +#define PG_compound 14 /* Part of a compound page */ +#define PG_swapcache 15 /* Swap page: swp_entry_t in private */ + +#define PG_mappedtodisk 16 /* Has blocks allocated on-disk */ +#define PG_reclaim 17 /* To be reclaimed asap */ +#define PG_nosave_free 18 /* Free, should not be written */ +#define PG_uncached 19 /* Page has been mapped as uncached */ /* * Global page accounting. One instance per CPU. Only unsigned longs are @@ -215,7 +214,7 @@ extern void __mod_page_state(unsigned offset, unsigned long delta); #define TestSetPageSlab(page) test_and_set_bit(PG_slab, &(page)->flags) #ifdef CONFIG_HIGHMEM -#define PageHighMem(page) test_bit(PG_highmem, &(page)->flags) +#define PageHighMem(page) is_highmem(page_zone(page)) #else #define PageHighMem(page) 0 /* needed to optimize away at compile time */ #endif -- cgit v1.2.3