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| author | lijiazi <jqqlijiazi@gmail.com> | 2019-11-30 17:55:21 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-12-01 12:59:06 -0800 |
| commit | e47b346aba0873529bf5130d599e4d91197cdd52 (patch) | |
| tree | 5482dc45e58461dfb00ed3b27237937b5f3c1507 /mm/page_alloc.c | |
| parent | 653e003d7f37716f84c17edcad3c228497888bfc (diff) | |
| download | lwn-e47b346aba0873529bf5130d599e4d91197cdd52.tar.gz lwn-e47b346aba0873529bf5130d599e4d91197cdd52.zip | |
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>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7c3bee1e98ec..e3a69ba5ec53 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -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)), |