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=-0.6 required=3.0 tests=DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,T_DKIM_INVALID, URIBL_BLOCKED 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 09839C433EF for ; Sun, 17 Jun 2018 02:12:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B86CD2086A for ; Sun, 17 Jun 2018 02:12:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="dc1Ehxas" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B86CD2086A Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934776AbeFQCMG (ORCPT ); Sat, 16 Jun 2018 22:12:06 -0400 Received: from bombadil.infradead.org ([198.137.202.133]:59038 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933917AbeFQCBG (ORCPT ); Sat, 16 Jun 2018 22:01:06 -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=PPn74mhV70oPoatuIlaMZkLUpkiAiM3ua7sFtxxKpV4=; b=dc1EhxasV30JXYH6J85PDGaDH yCaqwipkdMFlNT/3Tnp+fNPSDZiyExxP1AGtAfrzHOSAXJreM1wwqqURgoX5jrrbsddaa6CyGqALM R3jb9jNSN1qpNgofiLNxYBvtehy4KztaHopCzT0f3r+HUlHmV0jFh9K0nyXg7NWoV5K40QNQk2yNZ go3lHdPkhhGNmYi5pNW74Ni6xtsqGazE2tQsN52wJpedf2PPMbCBEykr9ghnuunYRqjxP8aCvgspB RzNKpohRKVwmiL9lztrlmtJnWY1W7iUfuNoXqCCeOmZA5oxBwZXA8FLd/5QyxyzxZ2wx8T+gm75Sf yPEmokAqA==; Received: from willy by bombadil.infradead.org with local (Exim 4.90_1 #2 (Red Hat Linux)) id 1fUN05-0001M5-6Q; Sun, 17 Jun 2018 02:01:05 +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 v14 40/74] mm: Convert __do_page_cache_readahead to XArray Date: Sat, 16 Jun 2018 19:00:18 -0700 Message-Id: <20180617020052.4759-41-willy@infradead.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180617020052.4759-1-willy@infradead.org> References: <20180617020052.4759-1-willy@infradead.org> Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 v14 40/74] mm: Convert __do_page_cache_readahead to XArray Date: Sat, 16 Jun 2018 19:00:18 -0700 Message-ID: <20180617020052.4759-41-willy@infradead.org> References: <20180617020052.4759-1-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=PPn74mhV70oPoatuIlaMZkLUpkiAiM3ua7sFtxxKpV4=; b=PvDAHwkKjGUDWTmgZZQaW0qyIC kBxV+08SQwnN0jalI43VGiI25iaVN2oQJR6J2KjU/sFk8WLMezxJUXTgPa7r//nZRVqVKHW1kqaGN lAQZUTkw/2o6DydkWZxphB+EB7Bn2ONrDdiEuBhAQgI18U6X60TWGwmRFCS4RJKvtNRE=; 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=PPn74mhV70oPoatuIlaMZkLUpkiAiM3ua7sFtxxKpV4=; b=YR6WZwDYLHKQkDEMIhiThzzeA1 3PaNh5jimZdK4jUPjhIaMqeTk/Pz96jQ6QxrRe3VHT/Jiloa/Qv17Yaxlamk9lSzAXmkFZLT4bSWS IqLWgECKZr/B8k/yR9o4Bi7Q4vtGIZ72yq82I/kRK5Nc5Nxafls38sP2Ekczz+tm7cKQ=; 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=PPn74mhV70oPoatuIlaMZkLUpkiAiM3ua7sFtxxKpV4=; b=dc1EhxasV30JXYH6J85PDGaDH yCaqwipkdMFlNT/3Tnp+fNPSDZiyExxP1AGtAfrzHOSAXJreM1wwqqURgoX5jrrbsddaa6CyGqALM R3jb9jNSN1qpNgofiLNxYBvtehy4KztaHopCzT0f3r+HUlHmV0jFh9K0nyXg7NWoV5K40QNQk2yNZ go3lHdPkhhGNmYi5pNW74Ni6xtsqGazE2tQsN52wJpedf2PPMbCBEykr9ghnuunYRqjxP8aCvgspB RzNKpohRKVwmiL9lztrlmtJnWY1W7iUfuNoXqCCeOmZA5oxBwZXA8FLd/5QyxyzxZ2wx8T+gm75Sf yPEmokAqA==; In-Reply-To: <20180617020052.4759-1-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 , Jaegeuk Kim , Matthew Wilcox , linux-f2fs-devel@lists.sourceforge.net, Nicholas Piggin , Ryusuke Konishi , Lukas Czerner , Ross Zwisler , Christoph Hellwig , Goldwyn Rodrigues 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