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[209.132.183.28]) by mx.google.com with ESMTPS id z4si1316521qvm.216.2019.02.21.09.44.53 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 21 Feb 2019 09:44:53 -0800 (PST) Received-SPF: pass (google.com: domain of jglisse@redhat.com designates 209.132.183.28 as permitted sender) client-ip=209.132.183.28; Authentication-Results: mx.google.com; spf=pass (google.com: domain of jglisse@redhat.com designates 209.132.183.28 as permitted sender) smtp.mailfrom=jglisse@redhat.com; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 087373082AF0; Thu, 21 Feb 2019 17:44:53 +0000 (UTC) Received: from redhat.com (unknown [10.20.6.236]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5AF5E5C290; Thu, 21 Feb 2019 17:44:46 +0000 (UTC) Date: Thu, 21 Feb 2019 12:44:44 -0500 From: Jerome Glisse To: Peter Xu Cc: linux-mm@kvack.org, linux-kernel@vger.kernel.org, David Hildenbrand , Hugh Dickins , Maya Gokhale , Pavel Emelyanov , Johannes Weiner , Martin Cracauer , Shaohua Li , Marty McFadden , Andrea Arcangeli , Mike Kravetz , Denis Plotnikov , Mike Rapoport , Mel Gorman , "Kirill A . Shutemov" , "Dr . David Alan Gilbert" Subject: Re: [PATCH v2 13/26] mm: export wp_page_copy() Message-ID: <20190221174444.GM2813@redhat.com> References: <20190212025632.28946-1-peterx@redhat.com> <20190212025632.28946-14-peterx@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20190212025632.28946-14-peterx@redhat.com> User-Agent: Mutt/1.10.0 (2018-05-17) X-Scanned-By: MIMEDefang 2.79 on 10.5.11.16 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.45]); Thu, 21 Feb 2019 17:44:53 +0000 (UTC) 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: On Tue, Feb 12, 2019 at 10:56:19AM +0800, Peter Xu wrote: > Export this function for usages outside page fault handlers. > > Signed-off-by: Peter Xu Reviewed-by: Jérôme Glisse > --- > include/linux/mm.h | 2 ++ > mm/memory.c | 2 +- > 2 files changed, 3 insertions(+), 1 deletion(-) > > diff --git a/include/linux/mm.h b/include/linux/mm.h > index f38fbe9c8bc9..2fd14a62324b 100644 > --- a/include/linux/mm.h > +++ b/include/linux/mm.h > @@ -405,6 +405,8 @@ struct vm_fault { > */ > }; > > +vm_fault_t wp_page_copy(struct vm_fault *vmf); > + > /* page entry size for vm->huge_fault() */ > enum page_entry_size { > PE_SIZE_PTE = 0, > diff --git a/mm/memory.c b/mm/memory.c > index f8d83ae16eff..32d32b6e6339 100644 > --- a/mm/memory.c > +++ b/mm/memory.c > @@ -2239,7 +2239,7 @@ static inline void wp_page_reuse(struct vm_fault *vmf) > * held to the old page, as well as updating the rmap. > * - In any case, unlock the PTL and drop the reference we took to the old page. > */ > -static vm_fault_t wp_page_copy(struct vm_fault *vmf) > +vm_fault_t wp_page_copy(struct vm_fault *vmf) > { > struct vm_area_struct *vma = vmf->vma; > struct mm_struct *mm = vma->vm_mm; > -- > 2.17.1 >