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mem: per-CPU allocator cache (ThunderX2 workaround)

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Change-Id: I7694524c5e9674a6f7bfcd911f8b0dbbead7df5a
This commit is contained in:
Balazs Gerofi
2019-05-10 08:29:52 +09:00
committed by Masamichi Takagi
parent 239c95449b
commit 99fba2df1c
3 changed files with 41 additions and 0 deletions
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2
kernel/cls.c
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@@ -42,9 +42,11 @@ void cpu_local_var_init(void)
clv[i].monitor = monitor->cpu + i;
clv[i].rusage = rusage.cpu + i;
INIT_LIST_HEAD(&clv[i].smp_func_req_list);
clv[i].free_chunks.rb_node = NULL;
}
cpu_local_var_initialized = 1;
smp_mb();
}
struct cpu_local_var *get_cpu_local_var(int id)

3
kernel/include/cls.h
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@@ -103,8 +103,11 @@ struct cpu_local_var {
/* UTI */
void *uti_futex_resp;
/* Per-CPU memory allocator cache */
struct rb_root free_chunks;
} __attribute__((aligned(64)));
extern int cpu_local_var_initialized;
struct cpu_local_var *get_cpu_local_var(int id);
static struct cpu_local_var *get_this_cpu_local_var(void)