* [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr
@ 2014-09-11 13:37 Ganapatrao Kulkarni
2014-09-11 13:52 ` Will Deacon
2014-09-15 17:11 ` Catalin Marinas
0 siblings, 2 replies; 5+ messages in thread
From: Ganapatrao Kulkarni @ 2014-09-11 13:37 UTC (permalink / raw)
To: linux-arm-kernel
In some config cases, max_mapnr is not defined and direct reference
results in to compilation error.
This is fixed by using set_max_mapnr() helper.
Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com>
---
arch/arm64/mm/init.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
index 5472c24..271e654 100644
--- a/arch/arm64/mm/init.c
+++ b/arch/arm64/mm/init.c
@@ -256,7 +256,7 @@ static void __init free_unused_memmap(void)
*/
void __init mem_init(void)
{
- max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
+ set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
#ifndef CONFIG_SPARSEMEM_VMEMMAP
free_unused_memmap();
--
1.8.1.4
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr
2014-09-11 13:37 [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr Ganapatrao Kulkarni
@ 2014-09-11 13:52 ` Will Deacon
2014-09-15 17:11 ` Catalin Marinas
1 sibling, 0 replies; 5+ messages in thread
From: Will Deacon @ 2014-09-11 13:52 UTC (permalink / raw)
To: linux-arm-kernel
On Thu, Sep 11, 2014 at 02:37:41PM +0100, Ganapatrao Kulkarni wrote:
> In some config cases, max_mapnr is not defined and direct reference
> results in to compilation error.
> This is fixed by using set_max_mapnr() helper.
>
> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com>
> ---
> arch/arm64/mm/init.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> index 5472c24..271e654 100644
> --- a/arch/arm64/mm/init.c
> +++ b/arch/arm64/mm/init.c
> @@ -256,7 +256,7 @@ static void __init free_unused_memmap(void)
> */
> void __init mem_init(void)
> {
> - max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
> + set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
Acked-by: Will Deacon <will.deacon@arm.com>
Catalin, this is one for you (we don't support NUMA yet, so mainline isn't
broken).
Will
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr
2014-09-11 13:37 [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr Ganapatrao Kulkarni
2014-09-11 13:52 ` Will Deacon
@ 2014-09-15 17:11 ` Catalin Marinas
2014-09-15 18:37 ` Ganapatrao Kulkarni
1 sibling, 1 reply; 5+ messages in thread
From: Catalin Marinas @ 2014-09-15 17:11 UTC (permalink / raw)
To: linux-arm-kernel
On Thu, Sep 11, 2014 at 02:37:41PM +0100, Ganapatrao Kulkarni wrote:
> In some config cases, max_mapnr is not defined and direct reference
> results in to compilation error.
> This is fixed by using set_max_mapnr() helper.
>
> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com>
> ---
> arch/arm64/mm/init.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> index 5472c24..271e654 100644
> --- a/arch/arm64/mm/init.c
> +++ b/arch/arm64/mm/init.c
> @@ -256,7 +256,7 @@ static void __init free_unused_memmap(void)
> */
> void __init mem_init(void)
> {
> - max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
> + set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
These are not equivalent as PHYS_PFN_OFFSET is dropped (which looks like
the correct thing to do but the commit log should reflect this as well).
--
Catalin
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr
2014-09-15 17:11 ` Catalin Marinas
@ 2014-09-15 18:37 ` Ganapatrao Kulkarni
2014-09-16 17:18 ` Catalin Marinas
0 siblings, 1 reply; 5+ messages in thread
From: Ganapatrao Kulkarni @ 2014-09-15 18:37 UTC (permalink / raw)
To: linux-arm-kernel
Hi Catalin,
On Mon, Sep 15, 2014 at 10:41 PM, Catalin Marinas
<catalin.marinas@arm.com> wrote:
> On Thu, Sep 11, 2014 at 02:37:41PM +0100, Ganapatrao Kulkarni wrote:
>> In some config cases, max_mapnr is not defined and direct reference
>> results in to compilation error.
>> This is fixed by using set_max_mapnr() helper.
>>
>> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com>
>> ---
>> arch/arm64/mm/init.c | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
>> index 5472c24..271e654 100644
>> --- a/arch/arm64/mm/init.c
>> +++ b/arch/arm64/mm/init.c
>> @@ -256,7 +256,7 @@ static void __init free_unused_memmap(void)
>> */
>> void __init mem_init(void)
>> {
>> - max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
>> + set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
>
> These are not equivalent as PHYS_PFN_OFFSET is dropped (which looks like
> the correct thing to do but the commit log should reflect this as well).
is below comment ok for the change? if so i can resend the patch.
Initializing max_mapnr using set_max_mapnr() helper function instead
of direct reference.
Also not adding PHYS_PFN_OFFSET to max_pfn, since it already contains it.
>
> --
> Catalin
thanks
ganapat
^ permalink raw reply [flat|nested] 5+ messages in thread
* [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr
2014-09-15 18:37 ` Ganapatrao Kulkarni
@ 2014-09-16 17:18 ` Catalin Marinas
0 siblings, 0 replies; 5+ messages in thread
From: Catalin Marinas @ 2014-09-16 17:18 UTC (permalink / raw)
To: linux-arm-kernel
On Mon, Sep 15, 2014 at 07:37:36PM +0100, Ganapatrao Kulkarni wrote:
> On Mon, Sep 15, 2014 at 10:41 PM, Catalin Marinas
> <catalin.marinas@arm.com> wrote:
> > On Thu, Sep 11, 2014 at 02:37:41PM +0100, Ganapatrao Kulkarni wrote:
> >> In some config cases, max_mapnr is not defined and direct reference
> >> results in to compilation error.
> >> This is fixed by using set_max_mapnr() helper.
> >>
> >> Signed-off-by: Ganapatrao Kulkarni <ganapatrao.kulkarni@caviumnetworks.com>
> >> ---
> >> arch/arm64/mm/init.c | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c
> >> index 5472c24..271e654 100644
> >> --- a/arch/arm64/mm/init.c
> >> +++ b/arch/arm64/mm/init.c
> >> @@ -256,7 +256,7 @@ static void __init free_unused_memmap(void)
> >> */
> >> void __init mem_init(void)
> >> {
> >> - max_mapnr = pfn_to_page(max_pfn + PHYS_PFN_OFFSET) - mem_map;
> >> + set_max_mapnr(pfn_to_page(max_pfn) - mem_map);
> >
> > These are not equivalent as PHYS_PFN_OFFSET is dropped (which looks like
> > the correct thing to do but the commit log should reflect this as well).
> is below comment ok for the change? if so i can resend the patch.
>
> Initializing max_mapnr using set_max_mapnr() helper function instead
> of direct reference.
> Also not adding PHYS_PFN_OFFSET to max_pfn, since it already contains it.
Yes.
--
Catalin
^ permalink raw reply [flat|nested] 5+ messages in thread
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2014-09-11 13:37 [PATCH] arm64:mm: initialize max_mapnr using function set_max_mapnr Ganapatrao Kulkarni
2014-09-11 13:52 ` Will Deacon
2014-09-15 17:11 ` Catalin Marinas
2014-09-15 18:37 ` Ganapatrao Kulkarni
2014-09-16 17:18 ` Catalin Marinas
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