From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3DC436453 for ; Tue, 22 Mar 2022 21:45:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05F8DC340EC; Tue, 22 Mar 2022 21:45:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1647985527; bh=OetOeqPdLI4ZR8ZX+aYpyGdrzB+LenaHlloTwIB5/zo=; h=Date:To:From:In-Reply-To:Subject:From; b=0NRfyC9mVWsQ2z6NwepGE44iY/ttwFuM+IrsGtJazjJ6psqb4bLNkayertwW2EDcl BR9wLLR5fjUE6S87h21iXE7NLN8iIqEyMYiYw1FiTtRec3eh4sPlnAbHrJ007Pr9MB AQzdyigSVQbmWHLVsP49D+3n0Ud1+NFIRRv0Eo3A= Date: Tue, 22 Mar 2022 14:45:26 -0700 To: willy@infradead.org,mike.kravetz@oracle.com,kirill@shutemov.name,hch@infradead.org,dhowells@redhat.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton In-Reply-To: <20220322143803.04a5e59a07e48284f196a2f9@linux-foundation.org> Subject: [patch 136/227] mm/hugetlb.c: export PageHeadHuge() Message-Id: <20220322214527.05F8DC340EC@smtp.kernel.org> Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: From: David Howells Subject: mm/hugetlb.c: export PageHeadHuge() Export PageHeadHuge() - it's used by folio_test_hugetlb() and thence by such as folio_file_page() and folio_contains(). Matthew suggested I use the first of those instead of doing the same calculation manually - but I can't call it from a module. Kirill suggested rearranging things to put it in a header, but that introduces header dependencies because of where constants are defined. [akpm@linux-foundation.org: s/EXPORT_SYMBOL/EXPORT_SYMBOL_GPL/, per Christoph] Link: https://lkml.kernel.org/r/2494562.1646054576@warthog.procyon.org.uk Link: https://lore.kernel.org/r/163707085314.3221130.14783857863702203440.stgit@warthog.procyon.org.uk/ Signed-off-by: David Howells Cc: Matthew Wilcox (Oracle) Cc: Kirill A. Shutemov Cc: Christoph Hellwig Cc: Mike Kravetz Signed-off-by: Andrew Morton --- mm/hugetlb.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/hugetlb.c~mm-export-pageheadhuge +++ a/mm/hugetlb.c @@ -1855,6 +1855,7 @@ int PageHeadHuge(struct page *page_head) return page_head[1].compound_dtor == HUGETLB_PAGE_DTOR; } +EXPORT_SYMBOL_GPL(PageHeadHuge); /* * Find and lock address space (mapping) in write mode. _ 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0162DC4332F for ; Tue, 22 Mar 2022 21:45:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236441AbiCVVrJ (ORCPT ); Tue, 22 Mar 2022 17:47:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59974 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236617AbiCVVrB (ORCPT ); Tue, 22 Mar 2022 17:47:01 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 0CB805FF1A for ; Tue, 22 Mar 2022 14:45:28 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9F24A6119A for ; Tue, 22 Mar 2022 21:45:27 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 05F8DC340EC; Tue, 22 Mar 2022 21:45:26 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linux-foundation.org; s=korg; t=1647985527; bh=OetOeqPdLI4ZR8ZX+aYpyGdrzB+LenaHlloTwIB5/zo=; h=Date:To:From:In-Reply-To:Subject:From; b=0NRfyC9mVWsQ2z6NwepGE44iY/ttwFuM+IrsGtJazjJ6psqb4bLNkayertwW2EDcl BR9wLLR5fjUE6S87h21iXE7NLN8iIqEyMYiYw1FiTtRec3eh4sPlnAbHrJ007Pr9MB AQzdyigSVQbmWHLVsP49D+3n0Ud1+NFIRRv0Eo3A= Date: Tue, 22 Mar 2022 14:45:26 -0700 To: willy@infradead.org, mike.kravetz@oracle.com, kirill@shutemov.name, hch@infradead.org, dhowells@redhat.com, akpm@linux-foundation.org, patches@lists.linux.dev, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org, akpm@linux-foundation.org From: Andrew Morton In-Reply-To: <20220322143803.04a5e59a07e48284f196a2f9@linux-foundation.org> Subject: [patch 136/227] mm/hugetlb.c: export PageHeadHuge() Message-Id: <20220322214527.05F8DC340EC@smtp.kernel.org> Precedence: bulk Reply-To: linux-kernel@vger.kernel.org List-ID: X-Mailing-List: mm-commits@vger.kernel.org From: David Howells Subject: mm/hugetlb.c: export PageHeadHuge() Export PageHeadHuge() - it's used by folio_test_hugetlb() and thence by such as folio_file_page() and folio_contains(). Matthew suggested I use the first of those instead of doing the same calculation manually - but I can't call it from a module. Kirill suggested rearranging things to put it in a header, but that introduces header dependencies because of where constants are defined. [akpm@linux-foundation.org: s/EXPORT_SYMBOL/EXPORT_SYMBOL_GPL/, per Christoph] Link: https://lkml.kernel.org/r/2494562.1646054576@warthog.procyon.org.uk Link: https://lore.kernel.org/r/163707085314.3221130.14783857863702203440.stgit@warthog.procyon.org.uk/ Signed-off-by: David Howells Cc: Matthew Wilcox (Oracle) Cc: Kirill A. Shutemov Cc: Christoph Hellwig Cc: Mike Kravetz Signed-off-by: Andrew Morton --- mm/hugetlb.c | 1 + 1 file changed, 1 insertion(+) --- a/mm/hugetlb.c~mm-export-pageheadhuge +++ a/mm/hugetlb.c @@ -1855,6 +1855,7 @@ int PageHeadHuge(struct page *page_head) return page_head[1].compound_dtor == HUGETLB_PAGE_DTOR; } +EXPORT_SYMBOL_GPL(PageHeadHuge); /* * Find and lock address space (mapping) in write mode. _