From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp.codeaurora.org by pdx-caf-mail.web.codeaurora.org (Dovecot) with LMTP id /O13GxuEHltbGQAAmS7hNA ; Mon, 11 Jun 2018 14:17:10 +0000 Received: by smtp.codeaurora.org (Postfix, from userid 1000) id 90EDE607E4; Mon, 11 Jun 2018 14:17:10 +0000 (UTC) Authentication-Results: smtp.codeaurora.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="oeORb1zk" X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on pdx-caf-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, MAILING_LIST_MULTI,T_DKIM_INVALID autolearn=unavailable autolearn_force=no version=3.4.0 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by smtp.codeaurora.org (Postfix) with ESMTP id 2F2EC60791; Mon, 11 Jun 2018 14:17:10 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 smtp.codeaurora.org 2F2EC60791 Authentication-Results: pdx-caf-mail.web.codeaurora.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: pdx-caf-mail.web.codeaurora.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933716AbeFKORI (ORCPT + 19 others); Mon, 11 Jun 2018 10:17:08 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:45776 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933534AbeFKOG6 (ORCPT ); Mon, 11 Jun 2018 10:06:58 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=MujQtudD6HapXlrwSi8huMmGpeKkjTkBkrUZuiJikXE=; b=oeORb1zkr0yVfKJawkiF8tapz AP283ohq5CrZArgIGTWnvMCIr8sfI3jNzzfxmmQ9fD+AbFJKaKb8ZREua/EzVkPyErflY/DfaReCs rgzrDHCyo4jU+nseYGNF7ybp3CxQkfWrN6PXsONZYBtGv8e616D9KXlg3kBWPtEorGlakzOd4wRkb UAy70hJFoIYsui4qBhNL9KnBopPmd+zunjg7yYGCietgss5AcobvIiEGOO0tziaAa6SdDPdELVPOM rQwtM+v7XaDX5tLNQnBOE+uaDpRWkxq1PffuCjrgUjHazMoPA9DC+YDW/yyrsJRQ00p5kWB6wu9qU UM1uOmuIA==; Received: from willy by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1fSNTE-0004mW-UX; Mon, 11 Jun 2018 14:06:56 +0000 From: Matthew Wilcox To: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: Matthew Wilcox , Jan Kara , Jeff Layton , Lukas Czerner , Ross Zwisler , Christoph Hellwig , Goldwyn Rodrigues , Nicholas Piggin , Ryusuke Konishi , linux-nilfs@vger.kernel.org, Jaegeuk Kim , Chao Yu , linux-f2fs-devel@lists.sourceforge.net Subject: [PATCH v13 39/72] mm: Convert __do_page_cache_readahead to XArray Date: Mon, 11 Jun 2018 07:06:06 -0700 Message-Id: <20180611140639.17215-40-willy@infradead.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180611140639.17215-1-willy@infradead.org> References: <20180611140639.17215-1-willy@infradead.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Matthew Wilcox This one is trivial. Signed-off-by: Matthew Wilcox --- mm/readahead.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 59998ca31f2a..07f9734dc79f 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -174,9 +174,7 @@ unsigned int __do_page_cache_readahead(struct address_space *mapping, if (page_offset > end_index) break; - rcu_read_lock(); - page = radix_tree_lookup(&mapping->i_pages, page_offset); - rcu_read_unlock(); + page = xa_load(&mapping->i_pages, page_offset); if (page && !xa_is_value(page)) { /* * Page already present? Kick off the current batch of -- 2.17.1 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Wilcox Subject: [PATCH v13 39/72] mm: Convert __do_page_cache_readahead to XArray Date: Mon, 11 Jun 2018 07:06:06 -0700 Message-ID: <20180611140639.17215-40-willy@infradead.org> References: <20180611140639.17215-1-willy@infradead.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sourceforge.net; s=x; h=References:In-Reply-To:Message-Id:Date:Subject:Cc: To:From:Sender:Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help:List-Unsubscribe: List-Subscribe:List-Post:List-Owner:List-Archive; bh=MujQtudD6HapXlrwSi8huMmGpeKkjTkBkrUZuiJikXE=; b=arBlaYcW/2kTUnwurM3HbOy5Oz d7+KJ9s7lZZq7KvwXTTFr0xMvOf0FiOzreeWWN8oMNViuDv1rvfu1nKbzrt5cGoLM29aMYMjwkVVz jntVE/lEQRDd41hOHHzevesc3yD+IzEp4k/L/Cqq7ghTm5E0ftlnUKETBSyG9kztwLI4=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=sf.net; s=x ; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To :MIME-Version:Content-Type:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=MujQtudD6HapXlrwSi8huMmGpeKkjTkBkrUZuiJikXE=; b=jNFINzltgdxi8dF3PdWdpx0lqS SRNYN3lmBI8wsCxVAyMwYHxYjp++XRol1LcNpXlYqCqQYPn1OLwLHNtkhcEv0lDuAONogfdoVQt2f mRbouGqbZbd4L2TP/JTWGJ98n5dkBzEyPm1+jQZlkk8rx+Ij/phZxYbNS39fMtfWvoaw=; DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=References:In-Reply-To:Message-Id: Date:Subject:Cc:To:From:Sender:Reply-To:MIME-Version:Content-Type: Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id: List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=MujQtudD6HapXlrwSi8huMmGpeKkjTkBkrUZuiJikXE=; b=oeORb1zkr0yVfKJawkiF8tapz AP283ohq5CrZArgIGTWnvMCIr8sfI3jNzzfxmmQ9fD+AbFJKaKb8ZREua/EzVkPyErflY/DfaReCs rgzrDHCyo4jU+nseYGNF7ybp3CxQkfWrN6PXsONZYBtGv8e616D9KXlg3kBWPtEorGlakzOd4wRkb UAy70hJFoIYsui4qBhNL9KnBopPmd+zunjg7yYGCietgss5AcobvIiEGOO0tziaAa6SdDPdELVPOM rQwtM+v7XaDX5tLNQnBOE+uaDpRWkxq1PffuCjrgUjHazMoPA9DC+YDW/yyrsJRQ00p5kWB6wu9qU UM1uOmuIA==; In-Reply-To: <20180611140639.17215-1-willy@infradead.org> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: linux-f2fs-devel-bounces@lists.sourceforge.net To: linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org Cc: linux-nilfs@vger.kernel.org, Jan Kara , Jeff Layton , Matthew Wilcox , Jaegeuk Kim , Nicholas Piggin , linux-f2fs-devel@lists.sourceforge.net, Ryusuke Konishi , Lukas Czerner , Ross Zwisler , Christoph Hellwig , Goldwyn Rodrigues From: Matthew Wilcox This one is trivial. Signed-off-by: Matthew Wilcox --- mm/readahead.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/mm/readahead.c b/mm/readahead.c index 59998ca31f2a..07f9734dc79f 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -174,9 +174,7 @@ unsigned int __do_page_cache_readahead(struct address_space *mapping, if (page_offset > end_index) break; - rcu_read_lock(); - page = radix_tree_lookup(&mapping->i_pages, page_offset); - rcu_read_unlock(); + page = xa_load(&mapping->i_pages, page_offset); if (page && !xa_is_value(page)) { /* * Page already present? Kick off the current batch of -- 2.17.1 ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot