Please be more polite to other people. After a197b59ae6 all allocations with GFP_DMA set on nodes without ZONE_DMA fail nearly silently (only one warning during bootup is emited, no matter how many things fail). This is a very crude change on behaviour. To be more civil, instead of failing emit noisy warnings each time smbd. tries to allocate a GFP_DMA memory on non-ZONE_DMA node. This change should be reverted after one or two major releases, but we should be more accurate rather than hoping for the best. Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@xxxxxxxxx> Cc: David Rientjes <rientjes@xxxxxxxxxx> Cc: Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> Cc: Mel Gorman <mel@xxxxxxxxx> Cc: KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxxxxxxx> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> Cc: Rik van Riel <riel@xxxxxxxxxx> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/page_alloc.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index a4e1db3..e22dd4e 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2248,8 +2248,9 @@ __alloc_pages_nodemask(gfp_t gfp_mask, unsigned int order, if (should_fail_alloc_page(gfp_mask, order)) return NULL; #ifndef CONFIG_ZONE_DMA - if (WARN_ON_ONCE(gfp_mask & __GFP_DMA)) - return NULL; + /* Change this back to hard failure after 3.0 or 3.1. For now give + * drivers people a chance to fix their drivers w/o causing breakage. */ + WARN_ON(gfp_mask & __GFP_DMA); #endif /* -- 1.7.4.4 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>