The patch titled
Subject: mm/vmscan: define macros for refaults in struct lruvec
has been added to the -mm mm-unstable branch. Its filename is
mm-vmscan-define-macros-for-refaults-in-struct-lruvec.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-vmscan-define-macros-for-refaults-in-struct-lruvec.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Yang Yang <yang.yang29@xxxxxxxxxx>
Subject: mm/vmscan: define macros for refaults in struct lruvec
Date: Mon, 8 Aug 2022 00:56:45 +0000
The magic number 0 and 1 are used in several places in vmscan.c.
Define macros for them to improve code readability.
Link: https://lkml.kernel.org/r/20220808005644.1721066-1-yang.yang29@xxxxxxxxxx
Signed-off-by: Yang Yang <yang.yang29@xxxxxxxxxx>
Cc: Johannes Weiner <hannes@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mmzone.h | 2 ++
mm/vmscan.c | 8 ++++----
2 files changed, 6 insertions(+), 4 deletions(-)
--- a/include/linux/mmzone.h~mm-vmscan-define-macros-for-refaults-in-struct-lruvec
+++ a/include/linux/mmzone.h
@@ -306,6 +306,8 @@ static inline bool is_active_lru(enum lr
return (lru == LRU_ACTIVE_ANON || lru == LRU_ACTIVE_FILE);
}
+#define WORKINGSET_ANON 0
+#define WORKINGSET_FILE 1
#define ANON_AND_FILE 2
enum lruvec_flags {
--- a/mm/vmscan.c~mm-vmscan-define-macros-for-refaults-in-struct-lruvec
+++ a/mm/vmscan.c
@@ -3228,7 +3228,7 @@ again:
refaults = lruvec_page_state(target_lruvec,
WORKINGSET_ACTIVATE_ANON);
- if (refaults != target_lruvec->refaults[0] ||
+ if (refaults != target_lruvec->refaults[WORKINGSET_ANON] ||
inactive_is_low(target_lruvec, LRU_INACTIVE_ANON))
sc->may_deactivate |= DEACTIVATE_ANON;
else
@@ -3241,7 +3241,7 @@ again:
*/
refaults = lruvec_page_state(target_lruvec,
WORKINGSET_ACTIVATE_FILE);
- if (refaults != target_lruvec->refaults[1] ||
+ if (refaults != target_lruvec->refaults[WORKINGSET_FILE] ||
inactive_is_low(target_lruvec, LRU_INACTIVE_FILE))
sc->may_deactivate |= DEACTIVATE_FILE;
else
@@ -3557,9 +3557,9 @@ static void snapshot_refaults(struct mem
target_lruvec = mem_cgroup_lruvec(target_memcg, pgdat);
refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_ANON);
- target_lruvec->refaults[0] = refaults;
+ target_lruvec->refaults[WORKINGSET_ANON] = refaults;
refaults = lruvec_page_state(target_lruvec, WORKINGSET_ACTIVATE_FILE);
- target_lruvec->refaults[1] = refaults;
+ target_lruvec->refaults[WORKINGSET_FILE] = refaults;
}
/*
_
Patches currently in -mm which might be from yang.yang29@xxxxxxxxxx are
mm-vmscan-define-macros-for-refaults-in-struct-lruvec.patch
