summaryrefslogtreecommitdiff
path: root/kernel/kcov.c
diff options
context:
space:
mode:
authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2021-11-08 18:35:34 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2021-11-09 10:02:52 -0800
commit741ddd4519c4d21eb7313e89a2c4ccc44a3dd6b9 (patch)
tree12c90b49d2ef7b66f1f14b94af4668dacce79ebc /kernel/kcov.c
parent6f1d34bd491c1bd0ac23100347e81080a2ec209d (diff)
kcov: allocate per-CPU memory on the relevant node
During boot kcov allocates per-CPU memory which is used later if remote/ softirq processing is enabled. Allocate the per-CPU memory on the CPU local node to avoid cross node memory access. Link: https://lkml.kernel.org/r/20210923164741.1859522-4-bigeasy@linutronix.de Link: https://lore.kernel.org/r/20210830172627.267989-4-bigeasy@linutronix.de Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Acked-by: Dmitry Vyukov <dvyukov@google.com> Acked-by: Marco Elver <elver@google.com> Tested-by: Marco Elver <elver@google.com> Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com> Cc: Clark Williams <williams@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'kernel/kcov.c')
-rw-r--r--kernel/kcov.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/kcov.c b/kernel/kcov.c
index 80bfe71bbe13..4f910231d99a 100644
--- a/kernel/kcov.c
+++ b/kernel/kcov.c
@@ -1034,8 +1034,8 @@ static int __init kcov_init(void)
int cpu;
for_each_possible_cpu(cpu) {
- void *area = vmalloc(CONFIG_KCOV_IRQ_AREA_SIZE *
- sizeof(unsigned long));
+ void *area = vmalloc_node(CONFIG_KCOV_IRQ_AREA_SIZE *
+ sizeof(unsigned long), cpu_to_node(cpu));
if (!area)
return -ENOMEM;
per_cpu_ptr(&kcov_percpu_data, cpu)->irq_area = area;