From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Eric Sandeen , "Theodore Tso" Subject: [ 095/104] ext4: fix online resizing for ext3-compat file systems Date: Mon, 6 May 2013 16:12:54 -0700 Message-Id: <20130506230053.390593983@linuxfoundation.org> In-Reply-To: <20130506230043.526528358@linuxfoundation.org> References: <20130506230043.526528358@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.8-stable review patch. If anyone has any objections, please let me know. ------------------ From: Theodore Ts'o commit c5c72d814cf0f650010337c73638b25e6d14d2d4 upstream. Commit fb0a387dcdc restricts block allocations for indirect-mapped files to block groups less than s_blockfile_groups. However, the online resizing code wasn't setting s_blockfile_groups, so the newly added block groups were not available for non-extent mapped files. Reported-by: Eric Sandeen Signed-off-by: "Theodore Ts'o" Signed-off-by: Greg Kroah-Hartman --- fs/ext4/resize.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/ext4/resize.c +++ b/fs/ext4/resize.c @@ -1341,6 +1341,8 @@ static void ext4_update_super(struct sup /* Update the global fs size fields */ sbi->s_groups_count += flex_gd->count; + sbi->s_blockfile_groups = min_t(ext4_group_t, sbi->s_groups_count, + (EXT4_MAX_BLOCK_FILE_PHYS / EXT4_BLOCKS_PER_GROUP(sb))); /* Update the reserved block counts only once the new group is * active. */