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[PATCH] fs/Kconfig: Make hugetlbfs a menuconfig

Peter Xu posted 1 patch 2 years ago
There is a newer version of this series
fs/Kconfig | 20 +++++++++++---------
1 file changed, 11 insertions(+), 9 deletions(-)
[PATCH] fs/Kconfig: Make hugetlbfs a menuconfig
Posted by Peter Xu 2 years ago 
Hugetlb vmemmap default option (HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON)
is a sub-option to hugetlbfs, but it shows in the same level as hugetlbfs
itself, under "Pesudo filesystems".

Make the vmemmap option a sub-option to hugetlbfs, by changing hugetlbfs
into a menuconfig.

Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Peter Xu <peterx@redhat.com>
---
 fs/Kconfig | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/fs/Kconfig b/fs/Kconfig
index fd1f655b4f1f..8636198a8689 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -254,7 +254,7 @@ config TMPFS_QUOTA
 config ARCH_SUPPORTS_HUGETLBFS
 	def_bool n
 
-config HUGETLBFS
+menuconfig HUGETLBFS
 	bool "HugeTLB file system support"
 	depends on X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
 	depends on (SYSFS || SYSCTL)
@@ -266,14 +266,7 @@ config HUGETLBFS
 
 	  If unsure, say N.
 
-config HUGETLB_PAGE
-	def_bool HUGETLBFS
-
-config HUGETLB_PAGE_OPTIMIZE_VMEMMAP
-	def_bool HUGETLB_PAGE
-	depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
-	depends on SPARSEMEM_VMEMMAP
-
+if HUGETLBFS
 config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
 	bool "HugeTLB Vmemmap Optimization (HVO) defaults to on"
 	default n
@@ -282,6 +275,15 @@ config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
 	  The HugeTLB VmemmapvOptimization (HVO) defaults to off. Say Y here to
 	  enable HVO by default. It can be disabled via hugetlb_free_vmemmap=off
 	  (boot command line) or hugetlb_optimize_vmemmap (sysctl).
+endif # HUGETLBFS
+
+config HUGETLB_PAGE
+	def_bool HUGETLBFS
+
+config HUGETLB_PAGE_OPTIMIZE_VMEMMAP
+	def_bool HUGETLB_PAGE
+	depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
+	depends on SPARSEMEM_VMEMMAP
 
 config ARCH_HAS_GIGANTIC_PAGE
 	bool
-- 
2.41.0
Re: [PATCH] fs/Kconfig: Make hugetlbfs a menuconfig
Posted by Randy Dunlap 2 years ago 
BTW:

On 11/23/23 14:39, Peter Xu wrote:
> Hugetlb vmemmap default option (HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON)
> is a sub-option to hugetlbfs, but it shows in the same level as hugetlbfs
> itself, under "Pesudo filesystems".
> Make the vmemmap option a sub-option to hugetlbfs, by changing hugetlbfs
> into a menuconfig.
> 
> Cc: Mike Kravetz <mike.kravetz@oracle.com>
> Cc: Muchun Song <songmuchun@bytedance.com>
> Cc: linux-fsdevel@vger.kernel.org
> Signed-off-by: Peter Xu <peterx@redhat.com>
> ---
>  fs/Kconfig | 20 +++++++++++---------
>  1 file changed, 11 insertions(+), 9 deletions(-)
> 
> diff --git a/fs/Kconfig b/fs/Kconfig
> index fd1f655b4f1f..8636198a8689 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -254,7 +254,7 @@ config TMPFS_QUOTA
>  config ARCH_SUPPORTS_HUGETLBFS
>  	def_bool n
>  
> -config HUGETLBFS
> +menuconfig HUGETLBFS
>  	bool "HugeTLB file system support"
>  	depends on X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
>  	depends on (SYSFS || SYSCTL)
> @@ -266,14 +266,7 @@ config HUGETLBFS
>  
>  	  If unsure, say N.
>  
> -config HUGETLB_PAGE
> -	def_bool HUGETLBFS
> -
> -config HUGETLB_PAGE_OPTIMIZE_VMEMMAP
> -	def_bool HUGETLB_PAGE
> -	depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
> -	depends on SPARSEMEM_VMEMMAP
> -
> +if HUGETLBFS
>  config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
>  	bool "HugeTLB Vmemmap Optimization (HVO) defaults to on"
>  	default n
> @@ -282,6 +275,15 @@ config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
>  	  The HugeTLB VmemmapvOptimization (HVO) defaults to off. Say Y here to

Is this small 'v'            ^ a typo?

thanks.

>  	  enable HVO by default. It can be disabled via hugetlb_free_vmemmap=off
>  	  (boot command line) or hugetlb_optimize_vmemmap (sysctl).
> +endif # HUGETLBFS
> +
> +config HUGETLB_PAGE
> +	def_bool HUGETLBFS
> +
> +config HUGETLB_PAGE_OPTIMIZE_VMEMMAP
> +	def_bool HUGETLB_PAGE
> +	depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
> +	depends on SPARSEMEM_VMEMMAP
>  
>  config ARCH_HAS_GIGANTIC_PAGE
>  	bool

-- 
~Randy
Re: [PATCH] fs/Kconfig: Make hugetlbfs a menuconfig
Posted by Muchun Song 2 years ago 

> On Nov 24, 2023, at 08:19, Randy Dunlap <rdunlap@infradead.org> wrote:
> 
> BTW:
> 
> On 11/23/23 14:39, Peter Xu wrote:
>> Hugetlb vmemmap default option (HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON)
>> is a sub-option to hugetlbfs, but it shows in the same level as hugetlbfs
>> itself, under "Pesudo filesystems".
>> Make the vmemmap option a sub-option to hugetlbfs, by changing hugetlbfs
>> into a menuconfig.
>> 
>> Cc: Mike Kravetz <mike.kravetz@oracle.com>
>> Cc: Muchun Song <songmuchun@bytedance.com>
>> Cc: linux-fsdevel@vger.kernel.org
>> Signed-off-by: Peter Xu <peterx@redhat.com>
>> ---
>> fs/Kconfig | 20 +++++++++++---------
>> 1 file changed, 11 insertions(+), 9 deletions(-)
>> 
>> diff --git a/fs/Kconfig b/fs/Kconfig
>> index fd1f655b4f1f..8636198a8689 100644
>> --- a/fs/Kconfig
>> +++ b/fs/Kconfig
>> @@ -254,7 +254,7 @@ config TMPFS_QUOTA
>> config ARCH_SUPPORTS_HUGETLBFS
>> def_bool n
>> 
>> -config HUGETLBFS
>> +menuconfig HUGETLBFS
>> bool "HugeTLB file system support"
>> depends on X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
>> depends on (SYSFS || SYSCTL)
>> @@ -266,14 +266,7 @@ config HUGETLBFS
>> 
>>  If unsure, say N.
>> 
>> -config HUGETLB_PAGE
>> - def_bool HUGETLBFS
>> -
>> -config HUGETLB_PAGE_OPTIMIZE_VMEMMAP
>> - def_bool HUGETLB_PAGE
>> - depends on ARCH_WANT_OPTIMIZE_HUGETLB_VMEMMAP
>> - depends on SPARSEMEM_VMEMMAP
>> -
>> +if HUGETLBFS
>> config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
>> bool "HugeTLB Vmemmap Optimization (HVO) defaults to on"
>> default n
>> @@ -282,6 +275,15 @@ config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
>>  The HugeTLB VmemmapvOptimization (HVO) defaults to off. Say Y here to
> 
> Is this small 'v'            ^ a typo?

Yes. Thanks for pointing it out. Although it is not related to this
patch, but it will be nice for me to carry this tiny typo fix. Hi,
Peter, would you like help me do this?

Thanks.
Re: [PATCH] fs/Kconfig: Make hugetlbfs a menuconfig
Posted by Peter Xu 2 years ago 
On Fri, Nov 24, 2023 at 10:37:06AM +0800, Muchun Song wrote:
> >> +if HUGETLBFS
> >> config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
> >> bool "HugeTLB Vmemmap Optimization (HVO) defaults to on"
> >> default n
> >> @@ -282,6 +275,15 @@ config HUGETLB_PAGE_OPTIMIZE_VMEMMAP_DEFAULT_ON
> >>  The HugeTLB VmemmapvOptimization (HVO) defaults to off. Say Y here to
> > 
> > Is this small 'v'            ^ a typo?
> 
> Yes. Thanks for pointing it out. Although it is not related to this
> patch, but it will be nice for me to carry this tiny typo fix. Hi,
> Peter, would you like help me do this?

Sure, this patch is indeed more or less moving that around; I can touch
that up.  I'll resend.

Thanks,

-- 
Peter Xu

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