At 05/23/2017 07:13 PM, Eryu Guan wrote:
On Tue, May 23, 2017 at 04:02:05PM +0800, Qu Wenruo wrote:
[BUG]
If using MOUNT_OPTIONS="-o nodatasum" and btrfs to run genierc/142
generic/143 and generic/154, it will cause false alert like:
cp: failed to clone '/mnt/test/test-154/file2' from '/mnt/test/test-154/file1': Invalid argument
MOUNT_OPTIONS is for scratch mount, and TEST_FS_MOUNT_OPTS is for test
dev mount, so I think setting TEST_FS_MOUNT_OPTS to "-o nodatasum"
should fix your problem.
Nope, the problem is the inconsistent of TEST_MNT setup.
As I described, the TEST_MNT is setup *with* MOUNT_OPTIONS for the 1st
time, maybe by "check" script.
But _test_cycle_mount() uses TEST_FS_MOUNT_OPTS otherthan MOUNT_OPTIONS,
and leads to the problem.
If using TEST_FS_MOUNT_OPTS, then 1st setup should also use
TEST_FS_MOUNT_OPTS.
Thanks,
Qu
Yeah, MOUNT_OPTIONS and TEST_FS_MOUNT_OPTS (and almost all other global
variables) are not documented properly..
Thanks,
Eryu
[REASON]
It is caused by _test_cycle_mount function, which unmount test device,
but when trying to re-mount it again using _test_mount(), we don't pass
$MOUNT_OPTIONS.
So this makes mount options differs between _test_cycle_mount().
And btrfs doesn't allow different csum flags between reflink source and
destination inodes, so it returns -EINVAL for reflink operation.
[FIX]
Fix it by passing $MOUNT_OPTIONS to _test_mount(), so that
_test_cycle_mount() won't cause different mount options.
So btrfs with "-o nodatasum" mount option can pass generic/14[23]
and generic/154 without false alert.
Signed-off-by: Qu Wenruo <quwenruo@xxxxxxxxxxxxxx>
---
common/rc | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/common/rc b/common/rc
index ba215961..a591907c 100644
--- a/common/rc
+++ b/common/rc
@@ -522,7 +522,8 @@ _test_mount()
return $?
fi
_test_options mount
- _mount -t $FSTYP $TEST_OPTIONS $TEST_FS_MOUNT_OPTS $SELINUX_MOUNT_OPTIONS $* $TEST_DEV $TEST_DIR
+ _mount -t $FSTYP $TEST_OPTIONS $TEST_FS_MOUNT_OPTS $SELINUX_MOUNT_OPTIONS \
+ $MOUNT_OPTIONS $* $TEST_DEV $TEST_DIR
}
_test_unmount()
--
2.13.0
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