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hugetlb: make hugetlb depends on SYSFS or SYSCTL

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If CONFIG_SYSFS and CONFIG_SYSCTL are both undefined, hugetlb doesn't work
now as there's no way to set max huge pages. Make sure at least one of the
above configs is defined to make hugetlb works as expected.

Link: https://lkml.kernel.org/r/20220901120030.63318-11-linmiaohe@huawei.com
Signed-off-by: Miaohe Lin <linmiaohe@huawei.com>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Miaohe Lin 2022-09-01 20:00:30 +08:00 committed by Andrew Morton
parent 5e6b1bf1b5
commit f8142cf94d
1 changed files with 1 additions and 0 deletions
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fs/Kconfig
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@ -235,6 +235,7 @@ config ARCH_SUPPORTS_HUGETLBFS
config HUGETLBFS
bool "HugeTLB file system support"
depends on X86 || IA64 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
depends on (SYSFS || SYSCTL)
help
hugetlbfs is a filesystem backing for HugeTLB pages, based on
ramfs. For architectures that support it, say Y here and read