Commit e47b346a authored Nov 30, 2019 by lijiazi Committed by Linus Torvalds Dec 01, 2019

mm/page_alloc.c: print reserved_highatomic info

Print nr_reserved_highatomic in show_free_areas, because when alloc_harder
is false, this value will be subtracted from the free_pages in
__zone_watermark_ok.  Printing this value can help analyze memory
allocaction failure issues.

Link: http://lkml.kernel.org/r/19515f3de2fb6abe66b52e03e4b676a21e82beda.1573634806.git.lijiazi@xiaomi.com


Signed-off-by: lijiazi <lijiazi@xiaomi.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Mel Gorman <mgorman@techsingularity.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 653e003d

mm/page_alloc.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -5354,6 +5354,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
		" min:%lukB"
		" low:%lukB"
		" high:%lukB"
		" reserved_highatomic:%luKB"
		" active_anon:%lukB"
		" inactive_anon:%lukB"
		" active_file:%lukB"
		@@ -5375,6 +5376,7 @@ void show_free_areas(unsigned int filter, nodemask_t *nodemask)
		K(min_wmark_pages(zone)),
		K(low_wmark_pages(zone)),
		K(high_wmark_pages(zone)),
		K(zone->nr_reserved_highatomic),
		K(zone_page_state(zone, NR_ZONE_ACTIVE_ANON)),
		K(zone_page_state(zone, NR_ZONE_INACTIVE_ANON)),
		K(zone_page_state(zone, NR_ZONE_ACTIVE_FILE)),

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