diff options
Diffstat (limited to 'mm/show_mem.c')
| -rw-r--r-- | mm/show_mem.c | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/mm/show_mem.c b/mm/show_mem.c index 4b888b18bdde..ba0808d6917f 100644 --- a/mm/show_mem.c +++ b/mm/show_mem.c @@ -34,13 +34,8 @@ long si_mem_available(void) long available; unsigned long pagecache; unsigned long wmark_low = 0; - unsigned long pages[NR_LRU_LISTS]; unsigned long reclaimable; struct zone *zone; - int lru; - - for (lru = LRU_BASE; lru < NR_LRU_LISTS; lru++) - pages[lru] = global_node_page_state(NR_LRU_BASE + lru); for_each_zone(zone) wmark_low += low_wmark_pages(zone); @@ -56,7 +51,8 @@ long si_mem_available(void) * start swapping or thrashing. Assume at least half of the page * cache, or the low watermark worth of cache, needs to stay. */ - pagecache = pages[LRU_ACTIVE_FILE] + pages[LRU_INACTIVE_FILE]; + pagecache = global_node_page_state(NR_ACTIVE_FILE) + + global_node_page_state(NR_INACTIVE_FILE); pagecache -= min(pagecache / 2, wmark_low); available += pagecache; @@ -67,7 +63,8 @@ long si_mem_available(void) */ reclaimable = global_node_page_state_pages(NR_SLAB_RECLAIMABLE_B) + global_node_page_state(NR_KERNEL_MISC_RECLAIMABLE); - available += reclaimable - min(reclaimable / 2, wmark_low); + reclaimable -= min(reclaimable / 2, wmark_low); + available += reclaimable; if (available < 0) available = 0; |