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So we need a 2nd loop device local variable to release it. Let's reorganize the local variables to clean them up in the _cleanup() function. Signed-off-by: Anand Jain Reviewed-by: Filipe Manana --- v4: rm -f, removed error/output redirection rm, -r removed for file image Check for the initialization of the local variable loop_dev[1-2] before calling _destroy_loop_device(). v3: a split from the patch 5/6 tests/btrfs/219 | 63 ++++++++++++++++++++++++++++--------------------- 1 file changed, 36 insertions(+), 27 deletions(-) diff --git a/tests/btrfs/219 b/tests/btrfs/219 index b747ce34fcc4..35824df2baaa 100755 --- a/tests/btrfs/219 +++ b/tests/btrfs/219 @@ -19,14 +19,19 @@ _cleanup() { cd / rm -f $tmp.* - if [ ! -z "$loop_mnt" ]; then - $UMOUNT_PROG $loop_mnt - rm -rf $loop_mnt - fi - [ ! -z "$loop_mnt1" ] && rm -rf $loop_mnt1 - [ ! -z "$fs_img1" ] && rm -rf $fs_img1 - [ ! -z "$fs_img2" ] && rm -rf $fs_img2 - [ ! -z "$loop_dev" ] && _destroy_loop_device $loop_dev + + # The variables are set before the test case can fail. + $UMOUNT_PROG ${loop_mnt1} &> /dev/null + $UMOUNT_PROG ${loop_mnt2} &> /dev/null + rm -rf $loop_mnt1 + rm -rf $loop_mnt2 + + [ ! -z $loop_dev1 ] && _destroy_loop_device $loop_dev1 + [ ! -z $loop_dev1 ] && _destroy_loop_device $loop_dev2 + + rm -f $fs_img1 + rm -f $fs_img2 + _btrfs_rescan_devices } @@ -36,56 +41,60 @@ _cleanup() # real QA test starts here _supported_fs btrfs + +loop_mnt1=$TEST_DIR/$seq/mnt1 +loop_mnt2=$TEST_DIR/$seq/mnt2 +fs_img1=$TEST_DIR/$seq/img1 +fs_img2=$TEST_DIR/$seq/img2 +loop_dev1="" +loop_dev2="" + _require_test _require_loop _require_btrfs_forget_or_module_loadable _fixed_by_kernel_commit 5f58d783fd78 \ "btrfs: free device in btrfs_close_devices for a single device filesystem" -loop_mnt=$TEST_DIR/$seq.mnt -loop_mnt1=$TEST_DIR/$seq.mnt1 -fs_img1=$TEST_DIR/$seq.img1 -fs_img2=$TEST_DIR/$seq.img2 - -mkdir $loop_mnt -mkdir $loop_mnt1 +mkdir -p $loop_mnt1 +mkdir -p $loop_mnt2 $XFS_IO_PROG -f -c "truncate 256m" $fs_img1 >>$seqres.full 2>&1 _mkfs_dev $fs_img1 >>$seqres.full 2>&1 cp $fs_img1 $fs_img2 +loop_dev1=`_create_loop_device $fs_img1` +loop_dev2=`_create_loop_device $fs_img2` + # Normal single device case, should pass just fine -_mount -o loop $fs_img1 $loop_mnt > /dev/null 2>&1 || \ +_mount $loop_dev1 $loop_mnt1 > /dev/null 2>&1 || \ _fail "Couldn't do initial mount" -$UMOUNT_PROG $loop_mnt +$UMOUNT_PROG $loop_mnt1 _btrfs_forget_or_module_reload # Now mount the new version again to get the higher generation cached, umount # and try to mount the old version. Mount the new version again just for good # measure. -loop_dev=`_create_loop_device $fs_img1` - -_mount $loop_dev $loop_mnt > /dev/null 2>&1 || \ +_mount $loop_dev1 $loop_mnt1 > /dev/null 2>&1 || \ _fail "Failed to mount the second time" -$UMOUNT_PROG $loop_mnt +$UMOUNT_PROG $loop_mnt1 -_mount -o loop $fs_img2 $loop_mnt > /dev/null 2>&1 || \ +_mount $loop_dev2 $loop_mnt2 > /dev/null 2>&1 || \ _fail "We couldn't mount the old generation" -$UMOUNT_PROG $loop_mnt +$UMOUNT_PROG $loop_mnt2 -_mount $loop_dev $loop_mnt > /dev/null 2>&1 || \ +_mount $loop_dev1 $loop_mnt1 > /dev/null 2>&1 || \ _fail "Failed to mount the second time" -$UMOUNT_PROG $loop_mnt +$UMOUNT_PROG $loop_mnt1 # Now we definitely can't mount them at the same time, because we're still tied # to the limitation of one fs_devices per fsid. _btrfs_forget_or_module_reload -_mount $loop_dev $loop_mnt > /dev/null 2>&1 || \ +_mount $loop_dev1 $loop_mnt1 > /dev/null 2>&1 || \ _fail "Failed to mount the third time" -_mount -o loop $fs_img2 $loop_mnt1 > /dev/null 2>&1 && \ +_mount $loop_dev2 $loop_mnt2 > /dev/null 2>&1 && \ _fail "We were allowed to mount when we should have failed" _btrfs_rescan_devices