Messages in this thread Patch in this message | | | Date | Tue, 20 Dec 2005 17:53:06 +0900 | From | Yasunori Goto <> | Subject | [Patch] New zone ZONE_EASY_RECLAIM take 4. (is_easy_reclaim func)[4/8] |
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This is for calculation of the watermark zone->pages_min/low/high.
There is no change at take 4.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Index: zone_reclaim/include/linux/mmzone.h =================================================================== --- zone_reclaim.orig/include/linux/mmzone.h 2005-12-19 20:24:04.000000000 +0900 +++ zone_reclaim/include/linux/mmzone.h 2005-12-19 20:24:07.000000000 +0900 @@ -394,6 +394,11 @@ static inline int populated_zone(struct return (!!zone->present_pages); } +static inline int is_easy_reclaim_idx(int idx) +{ + return (idx == ZONE_EASY_RECLAIM); +} + static inline int is_highmem_idx(int idx) { return (idx == ZONE_HIGHMEM); @@ -410,11 +415,21 @@ static inline int is_normal_idx(int idx) * to ZONE_{DMA/NORMAL/HIGHMEM/etc} in general code to a minimum. * @zone - pointer to struct zone variable */ +static inline int is_easy_reclaim(struct zone *zone) +{ + return zone == zone->zone_pgdat->node_zones + ZONE_EASY_RECLAIM; +} + static inline int is_highmem(struct zone *zone) { return zone == zone->zone_pgdat->node_zones + ZONE_HIGHMEM; } +static inline int is_higher_zone(struct zone *zone) +{ + return (is_highmem(zone) || is_easy_reclaim(zone)); +} + static inline int is_normal(struct zone *zone) { return zone == zone->zone_pgdat->node_zones + ZONE_NORMAL; Index: zone_reclaim/mm/page_alloc.c =================================================================== --- zone_reclaim.orig/mm/page_alloc.c 2005-12-19 20:24:04.000000000 +0900 +++ zone_reclaim/mm/page_alloc.c 2005-12-19 20:24:07.000000000 +0900 @@ -2592,7 +2592,7 @@ void setup_per_zone_pages_min(void) /* Calculate total number of !ZONE_HIGHMEM pages */ for_each_zone(zone) { - if (!is_highmem(zone)) + if (!is_higher_zone(zone)) lowmem_pages += zone->present_pages; } @@ -2600,7 +2600,7 @@ void setup_per_zone_pages_min(void) unsigned long tmp; spin_lock_irqsave(&zone->lru_lock, flags); tmp = (pages_min * zone->present_pages) / lowmem_pages; - if (is_highmem(zone)) { + if (is_higher_zone(zone)) { /* * __GFP_HIGH and PF_MEMALLOC allocations usually don't * need highmem pages, so cap pages_min to a small -- Yasunori Goto
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