The patch titled
Subject: mm/vmstat.c: use helper macro abs()
has been added to the -mm tree. Its filename is
mm-vmstat-use-helper-macro-abs.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-vmstat-use-helper-macro-abs.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-vmstat-use-helper-macro-abs.patch
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------------------------------------------------------
From: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Subject: mm/vmstat.c: use helper macro abs()
Use helper macro abs() to simplify the "x > t || x < -t" cmp.
Link: https://lkml.kernel.org/r/20200905084008.15748-1-linmiaohe@xxxxxxxxxx
Signed-off-by: Miaohe Lin <linmiaohe@xxxxxxxxxx>
Reviewed-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/vmstat.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/mm/vmstat.c~mm-vmstat-use-helper-macro-abs
+++ a/mm/vmstat.c
@@ -329,7 +329,7 @@ void __mod_zone_page_state(struct zone *
t = __this_cpu_read(pcp->stat_threshold);
- if (unlikely(x > t || x < -t)) {
+ if (unlikely(abs(x) > t)) {
zone_page_state_add(x, zone, item);
x = 0;
}
@@ -354,7 +354,7 @@ void __mod_node_page_state(struct pglist
t = __this_cpu_read(pcp->stat_threshold);
- if (unlikely(x > t || x < -t)) {
+ if (unlikely(abs(x) > t)) {
node_page_state_add(x, pgdat, item);
x = 0;
}
@@ -515,7 +515,7 @@ static inline void mod_zone_state(struct
o = this_cpu_read(*p);
n = delta + o;
- if (n > t || n < -t) {
+ if (abs(n) > t) {
int os = overstep_mode * (t >> 1) ;
/* Overflow must be added to zone counters */
@@ -577,7 +577,7 @@ static inline void mod_node_state(struct
o = this_cpu_read(*p);
n = delta + o;
- if (n > t || n < -t) {
+ if (abs(n) > t) {
int os = overstep_mode * (t >> 1) ;
/* Overflow must be added to node counters */
_
Patches currently in -mm which might be from linmiaohe@xxxxxxxxxx are
mm-vmstat-use-helper-macro-abs.patch
mm-migrate-avoid-possible-unnecessary-process-right-check-in-kernel_move_pages.patch
