From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0048CC3815B for ; Wed, 15 Apr 2020 12:25:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D2EF620936 for ; Wed, 15 Apr 2020 12:25:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586953550; bh=4fFNesi2B7U4ghqft/t2nI+a1ZdnPbr9W+VFIRsKftg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=QqAwPUCQeb9L1pHlt55xSdopqpzFYQ23/fEbJItyR93BCMlYi3ofrUqECd2xaycwA Cjk5Ns9TTJNdghgrDbXzFqxnWPhG2TJ448xpmnlvsDKfOWbx/4XUsWUDBq3qZ/XpZ5 fNvJ5k03HfTYqcHKz69IIuM5IULgq0c77BpTvEBE= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2409190AbgDOMZt (ORCPT ); Wed, 15 Apr 2020 08:25:49 -0400 Received: from mail.kernel.org ([198.145.29.99]:39298 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2409178AbgDOLpb (ORCPT ); Wed, 15 Apr 2020 07:45:31 -0400 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 990C32168B; Wed, 15 Apr 2020 11:45:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1586951130; bh=4fFNesi2B7U4ghqft/t2nI+a1ZdnPbr9W+VFIRsKftg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=arTxnHuXQsVWtDtnR1v4Fr0V5StIi4frKn2nn8hH70Vv9RFOmxfvPXOQoFIHM3n0P Y81/xMZ7dAiFBxTJcHwEMpKVTcnZ67Ln7Pn4kpKSqOKebdbgZDCjymb/mLlZHz2fuX RLFt9YsoAFiO/1ihuNOaXOnjh1t9sF3RuQDSkfUo= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Christophe Leroy , kbuild test robot , Andrew Morton , Mike Kravetz , Baoquan He , Nishanth Aravamudan , Nick Piggin , Adam Litke , Andi Kleen , Linus Torvalds , Sasha Levin , linux-mm@kvack.org Subject: [PATCH AUTOSEL 5.4 42/84] mm/hugetlb: fix build failure with HUGETLB_PAGE but not HUGEBTLBFS Date: Wed, 15 Apr 2020 07:43:59 -0400 Message-Id: <20200415114442.14166-42-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200415114442.14166-1-sashal@kernel.org> References: <20200415114442.14166-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Christophe Leroy [ Upstream commit bb297bb2de517e41199185021f043bbc5d75b377 ] When CONFIG_HUGETLB_PAGE is set but not CONFIG_HUGETLBFS, the following build failure is encoutered: In file included from arch/powerpc/mm/fault.c:33:0: include/linux/hugetlb.h: In function 'hstate_inode': include/linux/hugetlb.h:477:9: error: implicit declaration of function 'HUGETLBFS_SB' [-Werror=implicit-function-declaration] return HUGETLBFS_SB(i->i_sb)->hstate; ^ include/linux/hugetlb.h:477:30: error: invalid type argument of '->' (have 'int') return HUGETLBFS_SB(i->i_sb)->hstate; ^ Gate hstate_inode() with CONFIG_HUGETLBFS instead of CONFIG_HUGETLB_PAGE. Fixes: a137e1cc6d6e ("hugetlbfs: per mount huge page sizes") Reported-by: kbuild test robot Signed-off-by: Christophe Leroy Signed-off-by: Andrew Morton Reviewed-by: Mike Kravetz Cc: Baoquan He Cc: Nishanth Aravamudan Cc: Nick Piggin Cc: Adam Litke Cc: Andi Kleen Link: http://lkml.kernel.org/r/7e8c3a3c9a587b9cd8a2f146df32a421b961f3a2.1584432148.git.christophe.leroy@c-s.fr Link: https://patchwork.ozlabs.org/patch/1255548/#2386036 Signed-off-by: Linus Torvalds Signed-off-by: Sasha Levin --- include/linux/hugetlb.h | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/include/linux/hugetlb.h b/include/linux/hugetlb.h index 53fc34f930d08..8a03f392f3680 100644 --- a/include/linux/hugetlb.h +++ b/include/linux/hugetlb.h @@ -298,7 +298,10 @@ static inline bool is_file_hugepages(struct file *file) return is_file_shm_hugepages(file); } - +static inline struct hstate *hstate_inode(struct inode *i) +{ + return HUGETLBFS_SB(i->i_sb)->hstate; +} #else /* !CONFIG_HUGETLBFS */ #define is_file_hugepages(file) false @@ -310,6 +313,10 @@ hugetlb_file_setup(const char *name, size_t size, vm_flags_t acctflag, return ERR_PTR(-ENOSYS); } +static inline struct hstate *hstate_inode(struct inode *i) +{ + return NULL; +} #endif /* !CONFIG_HUGETLBFS */ #ifdef HAVE_ARCH_HUGETLB_UNMAPPED_AREA @@ -379,11 +386,6 @@ extern unsigned int default_hstate_idx; #define default_hstate (hstates[default_hstate_idx]) -static inline struct hstate *hstate_inode(struct inode *i) -{ - return HUGETLBFS_SB(i->i_sb)->hstate; -} - static inline struct hstate *hstate_file(struct file *f) { return hstate_inode(file_inode(f)); @@ -636,11 +638,6 @@ static inline struct hstate *hstate_vma(struct vm_area_struct *vma) return NULL; } -static inline struct hstate *hstate_inode(struct inode *i) -{ - return NULL; -} - static inline struct hstate *page_hstate(struct page *page) { return NULL; -- 2.20.1