linux-ext4 - [fstests PATCH 2/2] generic/347: dm-thin lacks DAX support

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Date:   Wed, 17 Jan 2018 16:23:51 -0700
From:   Ross Zwisler <ross.zwisler@...ux.intel.com>
To:     fstests@...r.kernel.org, Eryu Guan <eguan@...hat.com>
Cc:     Ross Zwisler <ross.zwisler@...ux.intel.com>,
        linux-ext4@...r.kernel.org, linux-nvdimm@...ts.01.org,
        dave.jiang@...el.com
Subject: [fstests PATCH 2/2] generic/347: dm-thin lacks DAX support

generic/347 currently fails when run in cojunction with the DAX mount
option:

generic/347 72s ... - output mismatch (see
/root/project/xfstests/results//generic/347.out.bad)
    --- tests/generic/347.out	2016-05-12 11:56:32.086618744 -0600
    +++ /root/project/xfstests/results//generic/347.out.bad	2018-01-17
    16:04:33.459348448 -0700
    @@ -1,2 +1,3 @@
     QA output created by 347
    +mount: /mnt/xfstests_scratch: can't read superblock on
    /dev/mapper/thin-vol.
     === completed
    ...
    (Run 'diff -u tests/generic/347.out
    /root/project/xfstests/results//generic/347.out.bad'  to see the entire
    diff)

This is expected because the dm-thin target currently lacks DAX support.

Just skip this test if we are using DAX.

Signed-off-by: Ross Zwisler <ross.zwisler@...ux.intel.com>
---
 tests/generic/347 | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tests/generic/347 b/tests/generic/347
index 3adc6744..0c2dec98 100755
--- a/tests/generic/347
+++ b/tests/generic/347
@@ -72,6 +72,7 @@ _supported_fs generic
 _supported_os Linux
 _require_scratch_nocheck
 _require_dm_target thin-pool
+_exclude_scratch_mount_option dax
 
 _setup_thin
 _workout
-- 
2.14.3