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ext4/306: avoid failures caused by incompatible mount options

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ext4/306 will fail when mounting the ext3 file system it creates if an
ext3-incompatible mount option is applied by _scratch_mount.  This can
happen if EXT_MOUNT_OPTIONS is defined appropriately in the test
environment.  For example, the block_validity option is commonly used
to enhance ext4 testing, and it is not supported by ext3.

Fix this by instead creating an ext4 file system without extents as a
functionally equivalent substitute.  This will also eliminate a
dependency for ext3 support on the test system.

Signed-off-by: Eric Whitney <enwlinux@gmail.com>
Reviewed-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Eric Whitney
2014-02-03 10:06:50 +11:00
committed by Dave Chinner
parent 8ebabf7298
commit 138ea5c76c
1 changed files with 8 additions and 15 deletions
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tests/ext4/306
+8 -15
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@@ -45,29 +45,22 @@ _supported_os Linux
_require_scratch
# This needs to mount ext3; might require ext3 driver, or ext4
# might handle it itself. Find out if we have it one way or another.
modprobe ext3 > /dev/null 2>&1
grep -q ext3 /proc/filesystems || _notrun "This test requires ext3 support"
rm -f $seqres.full
# Make a small ext3 fs, (extents disabled) & mount it
yes | mkfs.ext3 $SCRATCH_DEV 512m >> $seqres.full 2>&1
_scratch_mount -t ext3 || _fail "couldn't mount fs as ext3"
# Make a small ext4 fs with extents disabled & mount it
yes | mkfs.ext4 -O ^extents $SCRATCH_DEV 512m >> $seqres.full 2>&1
_scratch_mount || _fail "couldn't mount fs"
# Create a small non-extent-based file
echo "Create 1m testfile1"
$XFS_IO_PROG -f $SCRATCH_MNT/testfile1 -c "pwrite 0 1m" | _filter_xfs_io
echo "Create testfile2 to fill the fs"
# A large non-extent-based file filling the fs; this will run out & fail
$XFS_IO_PROG -f $SCRATCH_MNT/testfile2 -c "pwrite 0 512m" | _filter_xfs_io
# Remount as ext4
_scratch_unmount
_scratch_mount -t ext4 || _fail "couldn't remount fs as ext4"
# Create a large non-extent-based file filling the fs; this will run out & fail
echo "Create testfile2 to fill the fs"
$XFS_IO_PROG -f $SCRATCH_MNT/testfile2 -c "pwrite 0 512m" | _filter_xfs_io
df -h $SCRATCH_MNT >> $seqres.full
# Grow it by 512m
# Grow fs by 512m
echo "Resize to 1g"
resize2fs $SCRATCH_DEV 1g >> $seqres.full 2>&1 || _fail "Could not resize to 1g"
df -h $SCRATCH_MNT >> $seqres.full