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overlay/031: fix test with inodes index enabled

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When overlayfs is configured with CONFIG_OVERLAY_FS_INDEX=y,
workdir from previous overlay mount cannot be reused in a new
overlay mount that uses a different upper dir.

Fix the test to use a different workdir when mounting with a
different upper dir.

This change has no effect on older kernels and overlay
configured without CONFIG_OVERLAY_FS_INDEX.

Cc: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Amir Goldstein <amir73il@gmail.com>
Reviewed-by: zhangyi (F) <yi.zhang@huawei.com>
Signed-off-by: Eryu Guan <eguan@redhat.com>
This commit is contained in:
Amir Goldstein
2017-09-19 14:39:44 +03:00
committed by Eryu Guan
parent 5052c432b5
commit a21f34f87f
1 changed files with 16 additions and 7 deletions
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tests/overlay/031
+16 -7
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@@ -43,12 +43,17 @@ _cleanup()
# testfile to create a whiteout in upper dir.
create_whiteout()
{
mkdir -p $1/testdir
touch $1/testdir/$4
local lower=$1
local upper=$2
local work=$3
local file=$4
_overlay_mount_dirs $1 $2 $3 $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT
mkdir -p $lower/testdir
touch $lower/testdir/$file
rm -f $SCRATCH_MNT/testdir/$4
_overlay_mount_dirs $lower $upper $work $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT
rm -f $SCRATCH_MNT/testdir/$file
$UMOUNT_PROG $SCRATCH_MNT
}
@@ -72,9 +77,13 @@ lowerdir1=$OVL_BASE_SCRATCH_MNT/lower1
lowerdir2=$OVL_BASE_SCRATCH_MNT/lower2
upperdir=$OVL_BASE_SCRATCH_MNT/upper
workdir=$OVL_BASE_SCRATCH_MNT/workdir
# When overlay inode index feature is enabled, a workdir cannot be reused
# with a different upperdir. workdir1 in this test is used as the workdir
# when lowerdir1 is used as the upperdir.
workdir1=$OVL_BASE_SCRATCH_MNT/workdir1
testfile1=a
testfile2=b
mkdir -p $lowerdir1 $lowerdir2 $upperdir $workdir
mkdir -p $lowerdir1 $lowerdir2 $upperdir $workdir $workdir1
create_whiteout $lowerdir1 $upperdir $workdir $testfile1
@@ -108,7 +117,7 @@ $UMOUNT_PROG $SCRATCH_MNT
rm -rf $lowerdir1/testdir
rm -rf $upperdir/testdir
create_whiteout $lowerdir2 $lowerdir1 $workdir $testfile1
create_whiteout $lowerdir2 $lowerdir1 $workdir1 $testfile1
rm -rf $lowerdir2/testdir
@@ -128,7 +137,7 @@ create_whiteout $lowerdir1 $upperdir $workdir $testfile1
rm -rf $lowerdir1/testdir/$testfile1
create_whiteout $lowerdir2 $lowerdir1 $workdir $testfile2
create_whiteout $lowerdir2 $lowerdir1 $workdir1 $testfile2
_overlay_mount_dirs $lowerdir1 $upperdir $workdir $OVL_BASE_SCRATCH_MNT $SCRATCH_MNT