From patchwork Thu Jan 24 05:20:16 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anshuman Khandual X-Patchwork-Id: 10778319 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id D345313B4 for ; Thu, 24 Jan 2019 05:21:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C36352CEF3 for ; Thu, 24 Jan 2019 05:21:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B6ECA2D6FB; Thu, 24 Jan 2019 05:21:16 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 74F4A2D34E for ; Thu, 24 Jan 2019 05:21:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20170209; h=Sender: Content-Transfer-Encoding:Content-Type:MIME-Version:Cc:List-Subscribe: List-Help:List-Post:List-Archive:List-Unsubscribe:List-Id:References: In-Reply-To:Message-Id:Date:Subject:To:From:Reply-To:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Owner; bh=g8uiul2XvzbA5TqZOlMVjHy7kgs2GvoVBeD0EhHhT5A=; b=G+Z++IMRSzBhocHmRB+xFpEsBe GaAZk8+/pf/48FkWMA5KuftZCeTUMlia1P9jcdwiTInIxXmYcn2so+btGgmmFYcItE5MAQfm9hhfI u3CHbs7/eL4l1w78mDL7dcUd944c5cZ1vkoz7P1LFDj4+yUOMmA7sM3JVc/3M9Gw8t4vPCupT8pn5 HPlZ3Hh0UIu08K0XW+epPfpA9CPMOUekOMAl4aiigknXMQldaP6H5Mcqoa4Pxx+4LjtJEqz4bvQvK ME9JESxVOEm4Oe1QQHOOi2ODRFX8C6MQdfSg7Tu8VBBXT2cYLSSaF/0dxfBYzD4DNRzLZYhAlQOls qQdJOkBQ==; Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gmXRv-0002qG-8u; Thu, 24 Jan 2019 05:21:11 +0000 Received: from usa-sjc-mx-foss1.foss.arm.com ([217.140.101.70] helo=foss.arm.com) by bombadil.infradead.org with esmtp (Exim 4.90_1 #2 (Red Hat Linux)) id 1gmXRT-0002PW-3U for linux-arm-kernel@lists.infradead.org; Thu, 24 Jan 2019 05:20:45 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id CF106A78; Wed, 23 Jan 2019 21:20:41 -0800 (PST) Received: from p8cg001049571a15.blr.arm.com (p8cg001049571a15.blr.arm.com [10.162.40.157]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id DED263F5C1; Wed, 23 Jan 2019 21:20:38 -0800 (PST) From: Anshuman Khandual To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 2/6] arm64/mm: Ensure PGD kmem cache object is actually allocated Date: Thu, 24 Jan 2019 10:50:16 +0530 Message-Id: <1548307220-19756-3-git-send-email-anshuman.khandual@arm.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548307220-19756-1-git-send-email-anshuman.khandual@arm.com> References: <1548307220-19756-1-git-send-email-anshuman.khandual@arm.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190123_212043_292390_B03771E8 X-CRM114-Status: GOOD ( 10.21 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: mark.rutland@arm.com, suzuki.poulose@arm.com, marc.zyngier@arm.com, Catalin.Marinas@arm.com, Steve.Capper@arm.com, will.deacon@arm.com, james.morse@arm.com MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP 'pgd_cache' is created for allocating non PAGE_SIZE based PGD pointers. In such cases ensure that the kmem cache object is allocated before proceeding further with boot. Signed-off-by: Anshuman Khandual --- arch/arm64/mm/pgd.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/mm/pgd.c b/arch/arm64/mm/pgd.c index 289f911..8cb4e39 100644 --- a/arch/arm64/mm/pgd.c +++ b/arch/arm64/mm/pgd.c @@ -62,4 +62,5 @@ void __init pgd_cache_init(void) */ pgd_cache = kmem_cache_create("pgd_cache", PGD_SIZE, PGD_SIZE, SLAB_PANIC, NULL); + BUG_ON(!pgd_cache); }