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 C4DFBC04FE0 for ; Wed, 2 Aug 2023 15:15:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235095AbjHBPPZ (ORCPT ); Wed, 2 Aug 2023 11:15:25 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37464 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234340AbjHBPOX (ORCPT ); Wed, 2 Aug 2023 11:14:23 -0400 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C352C30DE; Wed, 2 Aug 2023 08:14:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=Lo+Ghw1793UV9pKFBxkz2iQJ13EHx7xbrSdwvVIFCO0=; b=StoT9OIcj4o9toRzc4/BXdHg8D Zh68QjCQw2PFRHdenUP0R510VbFMjlweCeuIVsR143Psl/lZf3/pdVFFdbFtG7AS6OLIJvd+r6nQk l/QSbIb5Mb2rd1E3BCU2csUdLClDSM+kvDV2rua3Z8j0RDXsiOBNFMuqoD5JXmhBJ4BwNEVD8r2KW y5CulEBiJDFztXAXSYnIkSDrl/3IDADBmpukaYHdOjjK/Wz7yqWQ1ISRRmhkY8IQuRnTAp1csTfE7 v47kAGtE0q/L/4klerCgiyAuXUgH6GqD8/CkrDsNoedZlhzGkRZBoeMxn7JJ0esryenRXCyn+gEwt 6d+qo20g==; Received: from willy by casper.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1qRDYB-00Ffle-QB; Wed, 02 Aug 2023 15:14:11 +0000 From: "Matthew Wilcox (Oracle)" To: Andrew Morton Cc: "Matthew Wilcox (Oracle)" , linux-arch@vger.kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Anshuman Khandual Subject: [PATCH v6 33/38] mm: Use flush_icache_pages() in do_set_pmd() Date: Wed, 2 Aug 2023 16:14:01 +0100 Message-Id: <20230802151406.3735276-34-willy@infradead.org> X-Mailer: git-send-email 2.37.1 In-Reply-To: <20230802151406.3735276-1-willy@infradead.org> References: <20230802151406.3735276-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-arch@vger.kernel.org Push the iteration over each page down to the architectures (many can flush the entire THP without iteration). Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Anshuman Khandual --- mm/memory.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/memory.c b/mm/memory.c index 4e6e9ec7eaaf..e25edd4c24b8 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -4400,7 +4400,6 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) bool write = vmf->flags & FAULT_FLAG_WRITE; unsigned long haddr = vmf->address & HPAGE_PMD_MASK; pmd_t entry; - int i; vm_fault_t ret = VM_FAULT_FALLBACK; if (!transhuge_vma_suitable(vma, haddr)) @@ -4433,8 +4432,7 @@ vm_fault_t do_set_pmd(struct vm_fault *vmf, struct page *page) if (unlikely(!pmd_none(*vmf->pmd))) goto out; - for (i = 0; i < HPAGE_PMD_NR; i++) - flush_icache_page(vma, page + i); + flush_icache_pages(vma, page, HPAGE_PMD_NR); entry = mk_huge_pmd(page, vma->vm_page_prot); if (write) -- 2.40.1