From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pl0-f69.google.com (mail-pl0-f69.google.com [209.85.160.69]) by kanga.kvack.org (Postfix) with ESMTP id 149E26B0068 for ; Tue, 6 Mar 2018 14:24:37 -0500 (EST) Received: by mail-pl0-f69.google.com with SMTP id az5-v6so7606054plb.14 for ; Tue, 06 Mar 2018 11:24:37 -0800 (PST) Received: from bombadil.infradead.org (bombadil.infradead.org. [2607:7c80:54:e::133]) by mx.google.com with ESMTPS id w1-v6si11919285plk.597.2018.03.06.11.24.35 for (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Tue, 06 Mar 2018 11:24:36 -0800 (PST) From: Matthew Wilcox Subject: [PATCH v8 39/63] mm: Convert __do_page_cache_readahead to XArray Date: Tue, 6 Mar 2018 11:23:49 -0800 Message-Id: <20180306192413.5499-40-willy@infradead.org> In-Reply-To: <20180306192413.5499-1-willy@infradead.org> References: <20180306192413.5499-1-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, linux-btrfs@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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org