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[64.147.123.25]) by mx.google.com with ESMTPS id l15si4605480qti.7.2019.02.15.14.09.17 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Fri, 15 Feb 2019 14:09:18 -0800 (PST) Received-SPF: pass (google.com: domain of zi.yan@sent.com designates 64.147.123.25 as permitted sender) client-ip=64.147.123.25; Authentication-Results: mx.google.com; dkim=pass header.i=@sent.com header.s=fm2 header.b=BQ6h4EMP; dkim=pass header.i=@messagingengine.com header.s=fm2 header.b="3v/Qhodh"; spf=pass (google.com: domain of zi.yan@sent.com designates 64.147.123.25 as permitted sender) smtp.mailfrom=zi.yan@sent.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=sent.com Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.west.internal (Postfix) with ESMTP id 4C83B31E4; Fri, 15 Feb 2019 17:09:16 -0500 (EST) Received: from mailfrontend1 ([10.202.2.162]) by compute3.internal (MEProxy); Fri, 15 Feb 2019 17:09:17 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sent.com; h=from :to:cc:subject:date:message-id:in-reply-to:references:reply-to :mime-version:content-transfer-encoding; s=fm2; bh=jPUMl05hp4GyY NPKyUU/j1/LhtwQWzBCTR2KiGtIjhE=; b=BQ6h4EMPTg4jJ0R72Qup5JbWpeCpy dzOaqn8Ww8vNnPWA3Gsra+/513+QVm3TnPdfFClO5KVwub/InOwz/Mnx+T3N6UKN /zRSRUSUzkx8O9RHe9QTJM4nfusej/0Ti0wJrf5Sl6JgqKJ+B54Xy3qM0E3BqAX8 rmKpUXAZCFfpVvSoATLHZdgBtA6r1XW823RVM9iqQ+4PZfU4RF5yNVGIzGo++IJz HMLLR4odcMaEAp126CPnk0kJXug+Apz9T1VpbD/iYyYitRDC+NoJgXgeJMTT+6OW 47thcQNkT0SIPHA4jQAeZSBheymoaWDiQ1y8jJb3iA1HRWuqR0RfYdkXw== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:content-transfer-encoding:date:from :in-reply-to:message-id:mime-version:references:reply-to:subject :to:x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm2; bh=jPUMl05hp4GyYNPKyUU/j1/LhtwQWzBCTR2KiGtIjhE=; b=3v/Qhodh InEnJMOf3bLckfH9lSJhVQmHnWX/0B2Q4Y2ByWqwrlIcXJI1yMDZA4FMUEpAz6Kx sfD4ukW/MRGzTnI79jbXaeyWKo2EQZGiANrOZuQYzvQD6rYitA4xMo6t5vS6ahzJ 3I9793OkBllaXj2mne6aJa3FsPJOcenUyqAnotNAri7k6anYgC4rvS/19Pj/XCA1 aVNGKgwn/IzSH5TefCaI3OM0otU2R8Y7nSWLtwDINEAvFntb5FWDjla1Jgy4A2IZ JkxolW+rRHnJxQMfM4ms+Avce8xytqW+AcfcBqskAyhcUP9ue4lvzQRCp2zTONBk AP4rId/C4vq3rA== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedtledruddtjedgudehkecutefuodetggdotefrod ftvfcurfhrohhfihhlvgemucfhrghsthforghilhdpqfhuthenuceurghilhhouhhtmecu fedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmnecujfgurhephffvufffkf fojghfrhgggfestdekredtredttdenucfhrhhomhepkghiucgjrghnuceoiihirdihrghn sehsvghnthdrtghomheqnecukfhppedvudeirddvvdekrdduuddvrddvvdenucfrrghrrg hmpehmrghilhhfrhhomhepiihirdihrghnsehsvghnthdrtghomhenucevlhhushhtvghr ufhiiigvpeel X-ME-Proxy: Received: from nvrsysarch5.nvidia.com (thunderhill.nvidia.com [216.228.112.22]) by mail.messagingengine.com (Postfix) with ESMTPA id E04D5E4680; Fri, 15 Feb 2019 17:09:13 -0500 (EST) From: Zi Yan To: linux-mm@kvack.org, linux-kernel@vger.kernel.org Cc: Dave Hansen , Michal Hocko , "Kirill A . Shutemov" , Andrew Morton , Vlastimil Babka , Mel Gorman , John Hubbard , Mark Hairgrove , Nitin Gupta , David Nellans , Zi Yan Subject: [RFC PATCH 10/31] mm: proc: add 1GB THP kpageflag. Date: Fri, 15 Feb 2019 14:08:35 -0800 Message-Id: <20190215220856.29749-11-zi.yan@sent.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190215220856.29749-1-zi.yan@sent.com> References: <20190215220856.29749-1-zi.yan@sent.com> Reply-To: ziy@nvidia.com MIME-Version: 1.0 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: X-Virus-Scanned: ClamAV using ClamSMTP From: Zi Yan Bit 27 is used to identify 1GB THP. Signed-off-by: Zi Yan --- fs/proc/page.c | 2 ++ include/uapi/linux/kernel-page-flags.h | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/proc/page.c b/fs/proc/page.c index 40b05e0d4274..5d1471a6082a 100644 --- a/fs/proc/page.c +++ b/fs/proc/page.c @@ -138,6 +138,8 @@ u64 stable_page_flags(struct page *page) u |= 1 << KPF_ZERO_PAGE; u |= 1 << KPF_THP; } + if (compound_order(head) == HPAGE_PUD_ORDER) + u |= 1 << KPF_PUD_THP; } else if (is_zero_pfn(page_to_pfn(page))) u |= 1 << KPF_ZERO_PAGE; diff --git a/include/uapi/linux/kernel-page-flags.h b/include/uapi/linux/kernel-page-flags.h index 21b9113c69da..743bd730917d 100644 --- a/include/uapi/linux/kernel-page-flags.h +++ b/include/uapi/linux/kernel-page-flags.h @@ -36,5 +36,7 @@ #define KPF_ZERO_PAGE 24 #define KPF_IDLE 25 #define KPF_PGTABLE 26 +#define KPF_PUD_THP 27 + #endif /* _UAPILINUX_KERNEL_PAGE_FLAGS_H */