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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C3ED2C32793 for ; Wed, 18 Jan 2023 10:40:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230223AbjARKke (ORCPT ); Wed, 18 Jan 2023 05:40:34 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34502 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230214AbjARKkJ (ORCPT ); Wed, 18 Jan 2023 05:40:09 -0500 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:3::133]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7C460C4E87; Wed, 18 Jan 2023 01:44:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=4WwjtPTvg3dbfLBE9vX5iRJAtphGCEZEkdJLVGyAJuo=; b=U8yFVdeBOBI3AACbEFkiQ4355D kLv+LRYHlKEtA4P6BWETKJS4fAVkK8iUpRlBVj9bR3Z5JxNdzQrN7aBF2SXwp2ePM5gNif1cFI7cL DyUfxGZQ28zOPddZXEXlOfBeZcxkQhHcv1emVkZOzOmdX02aeXOEB1DkUHEQ2/7g4XZ+Fmx9l3UHI YMGHla2dEMTRRR/zKlZBZvvUFGurgIdckmw7tTsDDGQdh7vK99tqsGnmvLAIuksqS+qEGzkmWqgtR +53as9e9nNgosns1KccGTJVaRfjXJygIT64MdzQBaIAoGVFyt2ILegAxzv+cBLG4sjOlhTtqe7jpE HXxflEVw==; Received: from 213-147-167-250.nat.highway.webapn.at ([213.147.167.250] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1pI4zI-000A8d-6U; Wed, 18 Jan 2023 09:44:09 +0000 From: Christoph Hellwig To: Andrew Morton , Matthew Wilcox , Hugh Dickins Cc: linux-afs@lists.infradead.org, linux-btrfs@vger.kernel.org, linux-ext4@vger.kernel.org, cluster-devel@redhat.com, linux-mm@kvack.org, linux-xfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-nilfs@vger.kernel.org Subject: [PATCH 7/9] gfs2: handle a NULL folio in gfs2_jhead_process_page Date: Wed, 18 Jan 2023 10:43:27 +0100 Message-Id: <20230118094329.9553-8-hch@lst.de> X-Mailer: git-send-email 2.39.0 In-Reply-To: <20230118094329.9553-1-hch@lst.de> References: <20230118094329.9553-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org filemap_get_folio can return NULL, so exit early for that case. Signed-off-by: Christoph Hellwig --- fs/gfs2/lops.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/gfs2/lops.c b/fs/gfs2/lops.c index 1902413d5d123e..51d4b610127cdb 100644 --- a/fs/gfs2/lops.c +++ b/fs/gfs2/lops.c @@ -472,6 +472,8 @@ static void gfs2_jhead_process_page(struct gfs2_jdesc *jd, unsigned long index, struct folio *folio; folio = filemap_get_folio(jd->jd_inode->i_mapping, index); + if (!folio) + return; folio_wait_locked(folio); if (folio_test_error(folio)) -- 2.39.0