The patch titled
Subject: mm: add setup_initial_init_mm() helper
has been added to the -mm tree. Its filename is
mm-add-setup_initial_init_mm-helper.patch
This patch should soon appear at
https://ozlabs.org/~akpm/mmots/broken-out/mm-add-setup_initial_init_mm-helper.patch
and later at
https://ozlabs.org/~akpm/mmotm/broken-out/mm-add-setup_initial_init_mm-helper.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Subject: mm: add setup_initial_init_mm() helper
Patch series "init_mm: cleanup ARCH's text/data/brk setup code", v3.
Add setup_initial_init_mm() helper, then use it to cleanup the text, data
and brk setup code.
This patch (of 15):
Add setup_initial_init_mm() helper to setup kernel text, data and brk.
Link: https://lkml.kernel.org/r/20210608083418.137226-1-wangkefeng.wang@xxxxxxxxxx
Link: https://lkml.kernel.org/r/20210608083418.137226-2-wangkefeng.wang@xxxxxxxxxx
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
Cc: Souptick Joarder <jrdr.linux@xxxxxxxxx>
Cc: Christophe Leroy <christophe.leroy@xxxxxxxxxx>
Cc: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxx>
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
Cc: Greentime Hu <green.hu@xxxxxxxxx>
Cc: Greg Ungerer <gerg@xxxxxxxxxxxxxx>
Cc: Guo Ren <guoren@xxxxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Jonas Bonn <jonas@xxxxxxxxxxxx>
Cc: Ley Foon Tan <ley.foon.tan@xxxxxxxxx>
Cc: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Cc: Nick Hu <nickhu@xxxxxxxxxxxxx>
Cc: Palmer Dabbelt <palmer@xxxxxxxxxxx>
Cc: Paul Walmsley <paul.walmsley@xxxxxxxxxx>
Cc: Rich Felker <dalias@xxxxxxxx>
Cc: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx>
Cc: Stafford Horne <shorne@xxxxxxxxx>
Cc: Stefan Kristiansson <stefan.kristiansson@xxxxxxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Cc: Vineet Gupta <vgupta@xxxxxxxxxxxx>
Cc: Will Deacon <will@xxxxxxxxxx>
Cc: Yoshinori Sato <ysato@xxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/mm.h | 3 +++
mm/init-mm.c | 9 +++++++++
2 files changed, 12 insertions(+)
--- a/include/linux/mm.h~mm-add-setup_initial_init_mm-helper
+++ a/include/linux/mm.h
@@ -238,6 +238,9 @@ int __add_to_page_cache_locked(struct pa
#define lru_to_page(head) (list_entry((head)->prev, struct page, lru))
+void setup_initial_init_mm(void *start_code, void *end_code,
+ void *end_data, void *brk);
+
/*
* Linux kernel virtual memory manager primitives.
* The idea being to have a "virtual" mm in the same way
--- a/mm/init-mm.c~mm-add-setup_initial_init_mm-helper
+++ a/mm/init-mm.c
@@ -40,3 +40,12 @@ struct mm_struct init_mm = {
.cpu_bitmap = CPU_BITS_NONE,
INIT_MM_CONTEXT(init_mm)
};
+
+void setup_initial_init_mm(void *start_code, void *end_code,
+ void *end_data, void *brk)
+{
+ 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;
+}
_
Patches currently in -mm which might be from wangkefeng.wang@xxxxxxxxxx are
mm-page-writeback-kill-get_writeback_state-comments.patch
mm-move-holes_in_zone-into-mm.patch
mm-generalize-zone_.patch
mm-add-setup_initial_init_mm-helper.patch
arc-convert-to-setup_initial_init_mm.patch
arm-convert-to-setup_initial_init_mm.patch
arm64-convert-to-setup_initial_init_mm.patch
csky-convert-to-setup_initial_init_mm.patch
h8300-convert-to-setup_initial_init_mm.patch
m68k-convert-to-setup_initial_init_mm.patch
nds32-convert-to-setup_initial_init_mm.patch
nios2-convert-to-setup_initial_init_mm.patch
openrisc-convert-to-setup_initial_init_mm.patch
powerpc-convert-to-setup_initial_init_mm.patch
riscv-convert-to-setup_initial_init_mm.patch
s390-convert-to-setup_initial_init_mm.patch
sh-convert-to-setup_initial_init_mm.patch
x86-convert-to-setup_initial_init_mm.patch
