From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from g2t1383g.austin.hpe.com ([15.233.16.89]:39204 "EHLO g2t1383g.austin.hpe.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728352AbeINUGL (ORCPT ); Fri, 14 Sep 2018 16:06:11 -0400 Received: from g9t5008.houston.hpe.com (g9t5008.houston.hpe.com [15.241.48.72]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by g2t1383g.austin.hpe.com (Postfix) with ESMTPS id 324D618D0 for ; Fri, 14 Sep 2018 14:51:19 +0000 (UTC) From: Toshi Kani To: jack@suse.cz, dan.j.williams@intel.com Cc: tytso@mit.edu, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-nvdimm@lists.01.org, linux-kernel@vger.kernel.org, Toshi Kani , stable@vger.kernel.org Subject: [PATCH v2 1/3] ext4, dax: add ext4_bmap to ext4_dax_aops Date: Fri, 14 Sep 2018 08:51:12 -0600 Message-Id: <20180914145114.11122-2-toshi.kani@hpe.com> In-Reply-To: <20180914145114.11122-1-toshi.kani@hpe.com> References: <20180914145114.11122-1-toshi.kani@hpe.com> Sender: stable-owner@vger.kernel.org List-ID: Ext4 mount path calls .bmap to the journal inode. This currently works for the DAX mount case because ext4_iget() always set 'ext4_da_aops' to any regular files. In preparation to fix ext4_iget() to set 'ext4_dax_aops' for ext4 DAX files, add ext4_bmap() to 'ext4_dax_aops'. .bmap works for DAX inodes. [1] [1]: https://lkml.org/lkml/2018/9/12/803 Fixes: 5f0663bb4a64 ("ext4, dax: introduce ext4_dax_aops") Signed-off-by: Toshi Kani Suggested-by: Jan Kara Cc: Jan Kara Cc: Dan Williams Cc: "Theodore Ts'o" Cc: Andreas Dilger Cc: --- fs/ext4/inode.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index d0dd585add6a..e4acaa980467 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -3948,6 +3948,7 @@ static const struct address_space_operations ext4_dax_aops = { .writepages = ext4_dax_writepages, .direct_IO = noop_direct_IO, .set_page_dirty = noop_set_page_dirty, + .bmap = ext4_bmap, .invalidatepage = noop_invalidatepage, };