On 2021/6/7 5:31, Mike Rapoport wrote:
Hello Kefeng,
On Fri, Jun 04, 2021 at 03:06:19PM +0800, Kefeng Wang wrote:
Add setup_initial_init_mm() helper to setup kernel text,
data and brk.
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Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
include/linux/mm_types.h | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 5aacc1c10a45..e1d2429089a4 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -572,6 +572,14 @@ struct mm_struct {
};
extern struct mm_struct init_mm;
+static inline void setup_initial_init_mm(void *start_code, void *end_code,
+ void *end_data, void *brk)
I think it's not that performance sensitive to make it inline. It can be
placed in mm/init-mm.c with a forward declaration in mm.h
Ok, I will send a update one with this change.
+{
+ init_mm.start_code = (unsigned long)start_code;
+ init_mm.end_code = (unsigned long)end_code;
+ init_mm.end_data = (unsigned long)end_data;
+ init_mm.brk = (unsigned long)brk;
+}
/* Pointer magic because the dynamic array size confuses some compilers. */
static inline void mm_init_cpumask(struct mm_struct *mm)
--
2.26.2
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