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=-12.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 4EE0CC61DD8 for ; Tue, 10 Nov 2020 03:37:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E7B9420731 for ; Tue, 10 Nov 2020 03:37:15 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="gz8aMuHb" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731346AbgKJDhO (ORCPT ); Mon, 9 Nov 2020 22:37:14 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44254 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731131AbgKJDhL (ORCPT ); Mon, 9 Nov 2020 22:37:11 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6541AC0617A6 for ; Mon, 9 Nov 2020 19:37:11 -0800 (PST) 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=eAfp1lPPYvTYCSCckuoPOESjgjJQr7RKBh3bTkVbZ28=; b=gz8aMuHbpvIoViYfw1YzReEh+Q lfgSAtbdCsD5oa0OL+6z+T3F69+gu8c0beBRs9OoxPIyjNYKadzTnZurEuy3bxuerqbbSqTxEl+BM 0gS9MIMcvoyMjoyQFVetZ7Q32bSZd4N/lrCV5ifaWTAeyACQ0KQXQEKMP0zk/W/Ec5aPU5LQjLRxP krvc+nRjQME//fHEoHWXTjgpmRpeoFsw5vyHemdz9jPbS3C7nfqmcD8YpesiheCisWqiDWRljI8Zd S0/ATVnLY/rjNAEpe6+xqzzJ1hSV8hufBJUApqHXu3CKlQR/aLgaPLwp9UmOellRhsCue+pVJGSK3 3iZ4Ltaw==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kcKSy-00065F-QN; Tue, 10 Nov 2020 03:37:08 +0000 From: "Matthew Wilcox (Oracle)" To: linux-fsdevel@vger.kernel.org, linux-mm@kvack.org Cc: "Matthew Wilcox (Oracle)" , hch@lst.de, kent.overstreet@gmail.com Subject: [PATCH v3 07/18] mm/filemap: Inline __wait_on_page_locked_async into caller Date: Tue, 10 Nov 2020 03:36:52 +0000 Message-Id: <20201110033703.23261-8-willy@infradead.org> X-Mailer: git-send-email 2.21.3 In-Reply-To: <20201110033703.23261-1-willy@infradead.org> References: <20201110033703.23261-1-willy@infradead.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org The previous patch removed wait_on_page_locked_async(), so inline __wait_on_page_locked_async into __lock_page_async(). Signed-off-by: Matthew Wilcox (Oracle) Reviewed-by: Kent Overstreet Reviewed-by: Christoph Hellwig --- mm/filemap.c | 53 ++++++++++++++++++++++------------------------------ 1 file changed, 22 insertions(+), 31 deletions(-) diff --git a/mm/filemap.c b/mm/filemap.c index cf75780eb6e0..2d8b31a31a7b 100644 --- a/mm/filemap.c +++ b/mm/filemap.c @@ -1317,36 +1317,6 @@ int wait_on_page_bit_killable(struct page *page, int bit_nr) } EXPORT_SYMBOL(wait_on_page_bit_killable); -static int __wait_on_page_locked_async(struct page *page, - struct wait_page_queue *wait, bool set) -{ - struct wait_queue_head *q = page_waitqueue(page); - int ret = 0; - - wait->page = page; - wait->bit_nr = PG_locked; - - spin_lock_irq(&q->lock); - __add_wait_queue_entry_tail(q, &wait->wait); - SetPageWaiters(page); - if (set) - ret = !trylock_page(page); - else - ret = PageLocked(page); - /* - * If we were succesful now, we know we're still on the - * waitqueue as we're still under the lock. This means it's - * safe to remove and return success, we know the callback - * isn't going to trigger. - */ - if (!ret) - __remove_wait_queue(q, &wait->wait); - else - ret = -EIOCBQUEUED; - spin_unlock_irq(&q->lock); - return ret; -} - /** * put_and_wait_on_page_locked - Drop a reference and wait for it to be unlocked * @page: The page to wait for. @@ -1514,7 +1484,28 @@ EXPORT_SYMBOL_GPL(__lock_page_killable); int __lock_page_async(struct page *page, struct wait_page_queue *wait) { - return __wait_on_page_locked_async(page, wait, true); + struct wait_queue_head *q = page_waitqueue(page); + int ret = 0; + + wait->page = page; + wait->bit_nr = PG_locked; + + spin_lock_irq(&q->lock); + __add_wait_queue_entry_tail(q, &wait->wait); + SetPageWaiters(page); + ret = !trylock_page(page); + /* + * If we were succesful now, we know we're still on the + * waitqueue as we're still under the lock. This means it's + * safe to remove and return success, we know the callback + * isn't going to trigger. + */ + if (!ret) + __remove_wait_queue(q, &wait->wait); + else + ret = -EIOCBQUEUED; + spin_unlock_irq(&q->lock); + return ret; } /* -- 2.28.0