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-rw-r--r--kernel/cpu.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 0c0d4b2..7c78387 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -24,6 +24,7 @@
#include <linux/irq.h>
#include <linux/smpboot.h>
#include <linux/relay.h>
+#include <linux/slab.h>
#include <trace/events/power.h>
#define CREATE_TRACE_POINTS
@@ -1278,6 +1279,11 @@ static struct cpuhp_step cpuhp_bp_states[] = {
.startup.single = relay_prepare_cpu,
.teardown.single = NULL,
},
+ [CPUHP_SLAB_PREPARE] = {
+ .name = "slab:prepare",
+ .startup.single = slab_prepare_cpu,
+ .teardown.single = slab_dead_cpu,
+ },
[CPUHP_RCUTREE_PREP] = {
.name = "RCU/tree:prepare",
.startup.single = rcutree_prepare_cpu,
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