The patch titled
Subject: mm: add DEVICE_ZONE to FOR_ALL_ZONES
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
mm-add-device_zone-to-for_all_zones.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-add-device_zone-to-for_all_zones.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Hao Lee <haolee.swjtu@xxxxxxxxx>
Subject: mm: add DEVICE_ZONE to FOR_ALL_ZONES
Date: Sun, 7 Aug 2022 15:44:42 +0000
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@xxxxxxxxx
Signed-off-by: Hao Lee <haolee.swjtu@xxxxxxxxx>
Cc: David Hildenbrand <david@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/vm_event_item.h | 15 +++++++++++----
mm/vmstat.c | 9 ++++++++-
2 files changed, 19 insertions(+), 5 deletions(-)
--- a/include/linux/vm_event_item.h~mm-add-device_zone-to-for_all_zones
+++ a/include/linux/vm_event_item.h
@@ -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,
--- a/mm/vmstat.c~mm-add-device_zone-to-for_all_zones
+++ a/mm/vmstat.c
@@ -1168,8 +1168,15 @@ int fragmentation_index(struct zone *zon
#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 */
_
Patches currently in -mm which might be from haolee.swjtu@xxxxxxxxx are
mm-add-device_zone-to-for_all_zones.patch
