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authorMiaohe Lin <linmiaohe@huawei.com>2020-10-15 20:07:36 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-10-16 11:11:17 -0700
commit406100762ae9ae5b7709c737ada3089160a0f77a (patch)
tree3a7129a66491e1aadfedd5a2f0fc19738a091c40 /mm/vmstat.c
parent11c9c7edae06da789abfdeefe5123162a3f1c7dc (diff)
mm/vmstat.c: use helper macro abs()
Use helper macro abs() to simplify the "x > t || x < -t" cmp. Signed-off-by: Miaohe Lin <linmiaohe@huawei.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Link: https://lkml.kernel.org/r/20200905084008.15748-1-linmiaohe@huawei.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm/vmstat.c')
-rw-r--r--mm/vmstat.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 4f7b4ee6aa12..698bc0bc18d1 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -325,7 +325,7 @@ void __mod_zone_page_state(struct zone *zone, enum zone_stat_item item,
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;
}
@@ -350,7 +350,7 @@ void __mod_node_page_state(struct pglist_data *pgdat, enum node_stat_item item,
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;
}
@@ -511,7 +511,7 @@ static inline void mod_zone_state(struct zone *zone,
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 */
@@ -573,7 +573,7 @@ static inline void mod_node_state(struct pglist_data *pgdat,
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 */