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* [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper
       [not found] <20210608083418.137226-1-wangkefeng.wang@huawei.com>
@ 2021-06-08  8:34 ` Kefeng Wang
  2021-06-08 14:53   ` Souptick Joarder
  2021-06-08  8:34 ` [PATCH v3 resend 14/15] sh: convert to setup_initial_init_mm() Kefeng Wang
  1 sibling, 1 reply; 5+ messages in thread
From: Kefeng Wang @ 2021-06-08  8:34 UTC (permalink / raw)
  To: Andrew Morton, linux-kernel
  Cc: linux-mm, Kefeng Wang, linux-snps-arc, linux-arm-kernel,
	linux-csky, uclinux-h8-devel, linux-m68k, openrisc, linuxppc-dev,
	linux-riscv, linux-sh, linux-s390, x86

Add setup_initial_init_mm() helper to setup kernel text,
data and brk.

Cc: linux-snps-arc@lists.infradead.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-csky@vger.kernel.org
Cc: uclinux-h8-devel@lists.sourceforge.jp
Cc: linux-m68k@lists.linux-m68k.org
Cc: openrisc@lists.librecores.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-riscv@lists.infradead.org
Cc: linux-sh@vger.kernel.org
Cc: linux-s390@vger.kernel.org
Cc: x86@kernel.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 include/linux/mm.h | 3 +++
 mm/init-mm.c       | 9 +++++++++
 2 files changed, 12 insertions(+)

diff --git a/include/linux/mm.h b/include/linux/mm.h
index c274f75efcf9..02aa057540b7 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -244,6 +244,9 @@ int __add_to_page_cache_locked(struct page *page, struct address_space *mapping,
 
 #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
diff --git a/mm/init-mm.c b/mm/init-mm.c
index 153162669f80..b4a6f38fb51d 100644
--- a/mm/init-mm.c
+++ b/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;
+}
-- 
2.26.2


^ permalink raw reply	[flat|nested] 5+ messages in thread

* [PATCH v3 resend 14/15] sh: convert to setup_initial_init_mm()
       [not found] <20210608083418.137226-1-wangkefeng.wang@huawei.com>
  2021-06-08  8:34 ` [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper Kefeng Wang
@ 2021-06-08  8:34 ` Kefeng Wang
  1 sibling, 0 replies; 5+ messages in thread
From: Kefeng Wang @ 2021-06-08  8:34 UTC (permalink / raw)
  To: Andrew Morton, linux-kernel
  Cc: linux-mm, Kefeng Wang, Yoshinori Sato, Rich Felker, linux-sh

Use setup_initial_init_mm() helper to simplify code.

Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
---
 arch/sh/kernel/setup.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 4144be650d41..1fcb6659822a 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -294,10 +294,7 @@ void __init setup_arch(char **cmdline_p)
 
 	if (!MOUNT_ROOT_RDONLY)
 		root_mountflags &= ~MS_RDONLY;
-	init_mm.start_code = (unsigned long) _text;
-	init_mm.end_code = (unsigned long) _etext;
-	init_mm.end_data = (unsigned long) _edata;
-	init_mm.brk = (unsigned long) _end;
+	setup_initial_init_mm(_text, _etext, _edata, _end);
 
 	code_resource.start = virt_to_phys(_text);
 	code_resource.end = virt_to_phys(_etext)-1;
-- 
2.26.2


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper
  2021-06-08  8:34 ` [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper Kefeng Wang
@ 2021-06-08 14:53   ` Souptick Joarder
  2021-06-08 14:57     ` Christophe Leroy
  0 siblings, 1 reply; 5+ messages in thread
From: Souptick Joarder @ 2021-06-08 14:53 UTC (permalink / raw)
  To: Kefeng Wang
  Cc: Andrew Morton, linux-kernel, Linux-MM, linux-snps-arc,
	linux-arm-kernel, linux-csky, uclinux-h8-devel, linux-m68k,
	openrisc, linuxppc-dev, linux-riscv, linux-sh, linux-s390,
	X86 ML

On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang <wangkefeng.wang@huawei.com> wrote:
>
> Add setup_initial_init_mm() helper to setup kernel text,
> data and brk.
>
> Cc: linux-snps-arc@lists.infradead.org
> Cc: linux-arm-kernel@lists.infradead.org
> Cc: linux-csky@vger.kernel.org
> Cc: uclinux-h8-devel@lists.sourceforge.jp
> Cc: linux-m68k@lists.linux-m68k.org
> Cc: openrisc@lists.librecores.org
> Cc: linuxppc-dev@lists.ozlabs.org
> Cc: linux-riscv@lists.infradead.org
> Cc: linux-sh@vger.kernel.org
> Cc: linux-s390@vger.kernel.org
> Cc: x86@kernel.org
> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> ---
>  include/linux/mm.h | 3 +++
>  mm/init-mm.c       | 9 +++++++++
>  2 files changed, 12 insertions(+)
>
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index c274f75efcf9..02aa057540b7 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -244,6 +244,9 @@ int __add_to_page_cache_locked(struct page *page, struct address_space *mapping,
>
>  #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);
> +

Gentle query -> is there any limitation to add inline functions in
setup_arch() functions ?

>  /*
>   * Linux kernel virtual memory manager primitives.
>   * The idea being to have a "virtual" mm in the same way
> diff --git a/mm/init-mm.c b/mm/init-mm.c
> index 153162669f80..b4a6f38fb51d 100644
> --- a/mm/init-mm.c
> +++ b/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;
> +}
> --
> 2.26.2
>
>

^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper
  2021-06-08 14:53   ` Souptick Joarder
@ 2021-06-08 14:57     ` Christophe Leroy
  2021-06-08 15:14       ` Souptick Joarder
  0 siblings, 1 reply; 5+ messages in thread
From: Christophe Leroy @ 2021-06-08 14:57 UTC (permalink / raw)
  To: Souptick Joarder, Kefeng Wang
  Cc: uclinux-h8-devel, linux-s390, linux-sh, X86 ML, linux-kernel,
	linux-csky, Linux-MM, linux-m68k, openrisc, Andrew Morton,
	linux-snps-arc, linuxppc-dev, linux-riscv, linux-arm-kernel



Le 08/06/2021 à 16:53, Souptick Joarder a écrit :
> On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang <wangkefeng.wang@huawei.com> wrote:
>>
>> Add setup_initial_init_mm() helper to setup kernel text,
>> data and brk.
>>
>> Cc: linux-snps-arc@lists.infradead.org
>> Cc: linux-arm-kernel@lists.infradead.org
>> Cc: linux-csky@vger.kernel.org
>> Cc: uclinux-h8-devel@lists.sourceforge.jp
>> Cc: linux-m68k@lists.linux-m68k.org
>> Cc: openrisc@lists.librecores.org
>> Cc: linuxppc-dev@lists.ozlabs.org
>> Cc: linux-riscv@lists.infradead.org
>> Cc: linux-sh@vger.kernel.org
>> Cc: linux-s390@vger.kernel.org
>> Cc: x86@kernel.org
>> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
>> ---
>>   include/linux/mm.h | 3 +++
>>   mm/init-mm.c       | 9 +++++++++
>>   2 files changed, 12 insertions(+)
>>
>> diff --git a/include/linux/mm.h b/include/linux/mm.h
>> index c274f75efcf9..02aa057540b7 100644
>> --- a/include/linux/mm.h
>> +++ b/include/linux/mm.h
>> @@ -244,6 +244,9 @@ int __add_to_page_cache_locked(struct page *page, struct address_space *mapping,
>>
>>   #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);
>> +
> 
> Gentle query -> is there any limitation to add inline functions in
> setup_arch() functions ?

Kefeng just followed comment from Mike I guess, see 
https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20210604070633.32363-2-wangkefeng.wang@huawei.com/#2696253

Christophe


^ permalink raw reply	[flat|nested] 5+ messages in thread

* Re: [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper
  2021-06-08 14:57     ` Christophe Leroy
@ 2021-06-08 15:14       ` Souptick Joarder
  0 siblings, 0 replies; 5+ messages in thread
From: Souptick Joarder @ 2021-06-08 15:14 UTC (permalink / raw)
  To: Christophe Leroy
  Cc: Kefeng Wang, uclinux-h8-devel, linux-s390, linux-sh, X86 ML,
	linux-kernel, linux-csky, Linux-MM, linux-m68k, openrisc,
	Andrew Morton, linux-snps-arc, linuxppc-dev, linux-riscv,
	linux-arm-kernel

On Tue, Jun 8, 2021 at 8:27 PM Christophe Leroy
<christophe.leroy@csgroup.eu> wrote:
>
>
>
> Le 08/06/2021 à 16:53, Souptick Joarder a écrit :
> > On Tue, Jun 8, 2021 at 1:56 PM Kefeng Wang <wangkefeng.wang@huawei.com> wrote:
> >>
> >> Add setup_initial_init_mm() helper to setup kernel text,
> >> data and brk.
> >>
> >> Cc: linux-snps-arc@lists.infradead.org
> >> Cc: linux-arm-kernel@lists.infradead.org
> >> Cc: linux-csky@vger.kernel.org
> >> Cc: uclinux-h8-devel@lists.sourceforge.jp
> >> Cc: linux-m68k@lists.linux-m68k.org
> >> Cc: openrisc@lists.librecores.org
> >> Cc: linuxppc-dev@lists.ozlabs.org
> >> Cc: linux-riscv@lists.infradead.org
> >> Cc: linux-sh@vger.kernel.org
> >> Cc: linux-s390@vger.kernel.org
> >> Cc: x86@kernel.org
> >> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
> >> ---
> >>   include/linux/mm.h | 3 +++
> >>   mm/init-mm.c       | 9 +++++++++
> >>   2 files changed, 12 insertions(+)
> >>
> >> diff --git a/include/linux/mm.h b/include/linux/mm.h
> >> index c274f75efcf9..02aa057540b7 100644
> >> --- a/include/linux/mm.h
> >> +++ b/include/linux/mm.h
> >> @@ -244,6 +244,9 @@ int __add_to_page_cache_locked(struct page *page, struct address_space *mapping,
> >>
> >>   #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);
> >> +
> >
> > Gentle query -> is there any limitation to add inline functions in
> > setup_arch() functions ?
>
> Kefeng just followed comment from Mike I guess, see
> https://patchwork.ozlabs.org/project/linuxppc-dev/patch/20210604070633.32363-2-wangkefeng.wang@huawei.com/#2696253

Ok.
>
> Christophe
>

^ permalink raw reply	[flat|nested] 5+ messages in thread

end of thread, other threads:[~2021-06-08 15:14 UTC | newest]

Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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     [not found] <20210608083418.137226-1-wangkefeng.wang@huawei.com>
2021-06-08  8:34 ` [PATCH v3 resend 01/15] mm: add setup_initial_init_mm() helper Kefeng Wang
2021-06-08 14:53   ` Souptick Joarder
2021-06-08 14:57     ` Christophe Leroy
2021-06-08 15:14       ` Souptick Joarder
2021-06-08  8:34 ` [PATCH v3 resend 14/15] sh: convert to setup_initial_init_mm() Kefeng Wang

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