From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f72.google.com (mail-pl0-f72.google.com [209.85.160.72]) by kanga.kvack.org (Postfix) with ESMTP id 5CBE66B025E for ; Tue, 13 Mar 2018 09:27:02 -0400 (EDT) Received: by mail-pl0-f72.google.com with SMTP id w22-v6so10230265pll.2 for ; Tue, 13 Mar 2018 06:27:02 -0700 (PDT) Received: from bombadil.infradead.org (bombadil.infradead.org. [2607:7c80:54:e::133]) by mx.google.com with ESMTPS id n21-v6si139396plp.198.2018.03.13.06.27.01 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 13 Mar 2018 06:27:01 -0700 (PDT) From: Matthew Wilcox Subject: [PATCH v9 37/61] mm: Convert __do_page_cache_readahead to XArray Date: Tue, 13 Mar 2018 06:26:15 -0700 Message-Id: <20180313132639.17387-38-willy@infradead.org> In-Reply-To: <20180313132639.17387-1-willy@infradead.org> References: <20180313132639.17387-1-willy@infradead.org> Sender: owner-linux-mm@kvack.org List-ID: To: Andrew Morton Cc: Matthew Wilcox , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-fsdevel@vger.kernel.org, Ryusuke Konishi , linux-nilfs@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 3ff9763b0461..5f528d649d5e 100644 --- a/mm/readahead.c +++ b/mm/readahead.c @@ -174,9 +174,7 @@ int __do_page_cache_readahead(struct address_space *mapping, struct file *filp, 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)) continue; -- 2.16.1