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mm: add DEVICE_ZONE to FOR_ALL_ZONES

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FOR_ALL_ZONES should be consistent with enum zone_type.  Otherwise,
__count_zid_vm_events have the potential to add count to wrong item when
zid is ZONE_DEVICE.

Link: https://lkml.kernel.org/r/20220807154442.GA18167@haolee.io
Signed-off-by: Hao Lee <haolee.swjtu@gmail.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Hao Lee 2022-08-07 15:44:42 +00:00 committed by Andrew Morton
parent a8faed3a02
commit a39c5d3ce0
2 changed files with 19 additions and 5 deletions
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15
include/linux/vm_event_item.h
View File

@ -20,12 +20,19 @@
#define HIGHMEM_ZONE(xx)
#endif
#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL, HIGHMEM_ZONE(xx) xx##_MOVABLE
#ifdef CONFIG_ZONE_DEVICE
#define DEVICE_ZONE(xx) xx##_DEVICE,
#else
#define DEVICE_ZONE(xx)
#endif
#define FOR_ALL_ZONES(xx) DMA_ZONE(xx) DMA32_ZONE(xx) xx##_NORMAL, \
HIGHMEM_ZONE(xx) xx##_MOVABLE, DEVICE_ZONE(xx)
enum vm_event_item { PGPGIN, PGPGOUT, PSWPIN, PSWPOUT,
FOR_ALL_ZONES(PGALLOC),
FOR_ALL_ZONES(ALLOCSTALL),
FOR_ALL_ZONES(PGSCAN_SKIP),
FOR_ALL_ZONES(PGALLOC)
FOR_ALL_ZONES(ALLOCSTALL)
FOR_ALL_ZONES(PGSCAN_SKIP)
PGFREE, PGACTIVATE, PGDEACTIVATE, PGLAZYFREE,
PGFAULT, PGMAJFAULT,
PGLAZYFREED,

9
mm/vmstat.c
View File

@ -1168,8 +1168,15 @@ int fragmentation_index(struct zone *zone, unsigned int order)
#define TEXT_FOR_HIGHMEM(xx)
#endif
#ifdef CONFIG_ZONE_DEVICE
#define TEXT_FOR_DEVICE(xx) xx "_device",
#else
#define TEXT_FOR_DEVICE(xx)
#endif
#define TEXTS_FOR_ZONES(xx) TEXT_FOR_DMA(xx) TEXT_FOR_DMA32(xx) xx "_normal", \
TEXT_FOR_HIGHMEM(xx) xx "_movable",
TEXT_FOR_HIGHMEM(xx) xx "_movable", \
TEXT_FOR_DEVICE(xx)
const char * const vmstat_text[] = {
/* enum zone_stat_item counters */