From: Yisheng Xie <xieyisheng1@huawei.com>
To: akpm@linux-foundation.org, mhocko@kernel.org
Cc: guohanjun@huawei.com, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, will.deacon@arm.com,
dave.hansen@intel.com, sudeep.holla@arm.com,
catalin.marinas@arm.com, mark.rutland@arm.com,
robh+dt@kernel.org, linux-arm-kernel@lists.infradead.org,
mike.kravetz@oracle.com, n-horiguchi@ah.jp.nec.com
Subject: [PATCH v4 2/2] arm64 Kconfig: Select gigantic page
Date: Fri, 30 Sep 2016 17:26:09 +0800 [thread overview]
Message-ID: <1475227569-63446-3-git-send-email-xieyisheng1@huawei.com> (raw)
In-Reply-To: <1475227569-63446-1-git-send-email-xieyisheng1@huawei.com>
Arm64 supports gigantic page 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.
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Yisheng Xie <xieyisheng1@huawei.com>
---
arch/arm64/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index bc3f00f..92217f6 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -9,6 +9,7 @@ config ARM64
select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE
select ARCH_HAS_ELF_RANDOMIZE
select ARCH_HAS_GCOV_PROFILE_ALL
+ select ARCH_HAS_GIGANTIC_PAGE
select ARCH_HAS_KCOV
select ARCH_HAS_SG_CHAIN
select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
--
1.7.12.4
--
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next prev parent reply other threads:[~2016-09-30 9:30 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-30 9:26 [PATCH v4 0/2] arm64/hugetlb: enable " Yisheng Xie
2016-09-30 9:26 ` [PATCH v4 1/2] mm/hugetlb: Introduce ARCH_HAS_GIGANTIC_PAGE Yisheng Xie
2016-09-30 9:41 ` Hillf Danton
2016-09-30 9:26 ` Yisheng Xie [this message]
2016-09-30 9:43 ` [PATCH v4 2/2] arm64 Kconfig: Select gigantic page Hillf Danton
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