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arm64 Kconfig: select gigantic page

Arm64 supports gigantic pages after commit 084bd29810a5 ("ARM64: mm:
HugeTLB support.") however, it can only be allocated at boottime and
can't be freed.

This patch selects ARCH_HAS_GIGANTIC_PAGE to make gigantic pages can be
allocated and freed at runtime for arch arm64.

Link: http://lkml.kernel.org/r/1475227569-63446-3-git-send-email-xieyisheng1@huawei.com
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Hillf Danton <hillf.zj@alibaba-inc.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Sudeep Holla <sudeep.holla@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mike Kravetz <mike.kravetz@oracle.com>
Cc: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Yisheng Xie 8 years ago
parent
461a718432
commit
14f099107a
1 changed files with 1 additions and 0 deletions
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  1. 1 0
      arch/arm64/Kconfig

+ 1 - 0
arch/arm64/Kconfig
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@@ -11,6 +11,7 @@ config ARM64
 
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 
 	select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
 
 	select ARCH_HAS_ELF_RANDOMIZE
 
 	select ARCH_HAS_ELF_RANDOMIZE
 
 	select ARCH_HAS_GCOV_PROFILE_ALL
 
 	select ARCH_HAS_GCOV_PROFILE_ALL
 
+	select ARCH_HAS_GIGANTIC_PAGE
 
 	select ARCH_HAS_KCOV
 
 	select ARCH_HAS_KCOV
 
 	select ARCH_HAS_SG_CHAIN
 
 	select ARCH_HAS_SG_CHAIN
 
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
 
 	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST