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.  When moving it, fix a typo 'v' spot by Randy.

Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Peter Xu <peterx@redhat.com>
---
v2:
- Fix a typo in the relevant area [Randy]
---
 fs/Kconfig | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/fs/Kconfig b/fs/Kconfig
index fd1f655b4f1f..0b404e61c80b 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)
@@ -266,22 +266,24 @@ 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
 	depends on HUGETLB_PAGE_OPTIMIZE_VMEMMAP
 	help
-	  The HugeTLB VmemmapvOptimization (HVO) defaults to off. Say Y here to
+	  The HugeTLB Vmemmap Optimization (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

> On Nov 24, 2023, at 23:19, Peter Xu <peterx@redhat.com> 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.  When moving it, fix a typo 'v' spot by Randy.
> 
> Cc: Mike Kravetz <mike.kravetz@oracle.com>
> Cc: Randy Dunlap <rdunlap@infradead.org>
> Cc: Muchun Song <songmuchun@bytedance.com>
> Cc: linux-fsdevel@vger.kernel.org
> Signed-off-by: Peter Xu <peterx@redhat.com>

Reviewed-by: Muchun Song <songmuchun@bytedance.com>

Thanks.