From 91d64606bb456f801b4d677c9dc20a15f5ce1c63 Mon Sep 17 00:00:00 2001 From: Reza Arbab Date: Fri, 12 May 2017 15:46:32 -0700 Subject: mm, vmstat: Remove spurious WARN() during zoneinfo print [ Upstream commit 8d35bb310698c69d73073b26fc581f2e3f7f621d ] After commit e2ecc8a79ed4 ("mm, vmstat: print non-populated zones in zoneinfo"), /proc/zoneinfo will show unpopulated zones. A memoryless node, having no populated zones at all, was previously ignored, but will now trigger the WARN() in is_zone_first_populated(). Remove this warning, as its only purpose was to warn of a situation that has since been enabled. Aside: The "per-node stats" are still printed under the first populated zone, but that's not necessarily the first stanza any more. I'm not sure which criteria is more important with regard to not breaking parsers, but it looks a little weird to the eye. Fixes: e2ecc8a79ed4 ("mm, vmstat: print node-based stats in zoneinfo file") Link: http://lkml.kernel.org/r/1493854905-10918-1-git-send-email-arbab@linux.vnet.ibm.com Signed-off-by: Reza Arbab Cc: David Rientjes Cc: Anshuman Khandual Cc: Vlastimil Babka Cc: Mel Gorman Cc: Johannes Weiner Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- mm/vmstat.c | 2 -- 1 file changed, 2 deletions(-) (limited to 'mm') diff --git a/mm/vmstat.c b/mm/vmstat.c index 68b3193e4493..5f658b6a684f 100644 --- a/mm/vmstat.c +++ b/mm/vmstat.c @@ -1351,8 +1351,6 @@ static bool is_zone_first_populated(pg_data_t *pgdat, struct zone *zone) return zone == compare; } - /* The zone must be somewhere! */ - WARN_ON_ONCE(1); return false; } -- cgit v1.2.3