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-rw-r--r--arch/x86/kernel/cpu/common.c2
-rw-r--r--arch/x86/kernel/vmlinux.lds.S5
2 files changed, 5 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 88a6707b765c..f00870b2c980 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -2064,7 +2064,7 @@ static __init int setup_setcpuid(char *arg)
}
__setup("setcpuid=", setup_setcpuid);
-DEFINE_PER_CPU_ALIGNED(struct pcpu_hot, pcpu_hot) = {
+DEFINE_PER_CPU_CACHE_HOT(struct pcpu_hot, pcpu_hot) = {
.current_task = &init_task,
.preempt_count = INIT_PREEMPT_COUNT,
.top_of_stack = TOP_OF_INIT_STACK,
diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S
index 1769a7126224..0ef9870ea52e 100644
--- a/arch/x86/kernel/vmlinux.lds.S
+++ b/arch/x86/kernel/vmlinux.lds.S
@@ -187,6 +187,8 @@ SECTIONS
PAGE_ALIGNED_DATA(PAGE_SIZE)
+ CACHE_HOT_DATA(L1_CACHE_BYTES)
+
CACHELINE_ALIGNED_DATA(L1_CACHE_BYTES)
DATA_DATA
@@ -327,7 +329,8 @@ SECTIONS
EXIT_DATA
}
- PERCPU_SECTION(INTERNODE_CACHE_BYTES)
+ PERCPU_SECTION(L1_CACHE_BYTES)
+ ASSERT(__per_cpu_hot_end - __per_cpu_hot_start <= 64, "percpu cache hot section too large")
RUNTIME_CONST_VARIABLES
RUNTIME_CONST(ptr, USER_PTR_MAX)