From 96990a4ae979df9e235d01097d6175759331e88c Mon Sep 17 00:00:00 2001 From: Christoph Lameter Date: Mon, 14 Jan 2008 00:55:14 -0800 Subject: [PATCH] quicklists: Only consider memory that can be used with GFP_KERNEL Quicklists calculates the size of the quicklists based on the number of free pages. This must be the number of free pages that can be allocated with GFP_KERNEL. node_page_state() includes the pages in ZONE_HIGHMEM and ZONE_MOVABLE which may lead the quicklists to become too large causing OOM. Signed-off-by: Christoph Lameter Tested-by: Dhaval Giani Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/quicklist.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/mm/quicklist.c b/mm/quicklist.c index ae8189c2799e..3f703f7cb398 100644 --- a/mm/quicklist.c +++ b/mm/quicklist.c @@ -26,9 +26,17 @@ DEFINE_PER_CPU(struct quicklist, quicklist)[CONFIG_NR_QUICK]; static unsigned long max_pages(unsigned long min_pages) { unsigned long node_free_pages, max; + struct zone *zones = NODE_DATA(numa_node_id())->node_zones; + + node_free_pages = +#ifdef CONFIG_ZONE_DMA + zone_page_state(&zones[ZONE_DMA], NR_FREE_PAGES) + +#endif +#ifdef CONFIG_ZONE_DMA32 + zone_page_state(&zones[ZONE_DMA32], NR_FREE_PAGES) + +#endif + zone_page_state(&zones[ZONE_NORMAL], NR_FREE_PAGES); - node_free_pages = node_page_state(numa_node_id(), - NR_FREE_PAGES); max = node_free_pages / FRACTION_OF_NODE_MEM; return max(max, min_pages); } -- 2.20.1