[PATCH 6/8] xfstests: generic/311: add a few more test cases

Josef Bacik
2013-10-18T18:26:44Z

Btrfs had some issues with fsync()'ing directories and fsync()'ing after
renames. These three new tests cover the 3 different issues we were seeing.
Thanks,

Signed-off-by: Josef Bacik <jbacik@fusionio.com>
---
tests/generic/311 | 89 +++++++++++++++++++++++++++++++++++++++++++++++++--
tests/generic/311.out | 8 +++++
2 files changed, 95 insertions(+), 2 deletions(-)

diff --git a/tests/generic/311 b/tests/generic/311
index 675d927..002ad57 100644
--- a/tests/generic/311
+++ b/tests/generic/311
@@ -70,6 +70,8 @@ testfile=$SCRATCH_MNT/$seq.fsync
FLAKEY_TABLE="0 $BLK_DEV_SIZE flakey $SCRATCH_DEV 0 180 0"
FLAKEY_TABLE_DROP="0 $BLK_DEV_SIZE flakey $SCRATCH_DEV 0 0 180 1 drop_writes"
_TEST_OPTIONS=""
+allow_writes=0
+drop_writes=1

_mount_flakey()
{
@@ -104,8 +106,6 @@ _load_flakey_table()
_run_test()
{
# _run_test <testnum> <0 - buffered | 1 - O_DIRECT>
- allow_writes=0
- drop_writes=1
test_num=$1

direct_opt=""
@@ -131,6 +131,83 @@ _run_test()
_mount_flakey
}

+_clean_working_dir()
+{
+ _mount_flakey
+ rm -rf $SCRATCH_MNT/*
+ _unmount_flakey
+}
+
+# Btrfs wasn't making sure the directory survived fsync
+_directory_test()
+{
+ echo "fsync new directory"
+ _mount_flakey
+ mkdir $SCRATCH_MNT/bar
+ $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/bar
+ _load_flakey_table $drop_writes
+ _unmount_flakey
+
+ _load_flakey_table $allow_writes
+ _mount_flakey
+ _ls_l $SCRATCH_MNT | tail -n +2 | awk '{ print $1, $9 }'
+ _unmount_flakey
+ _check_scratch_fs $FLAKEY_DEV
+ [ $? -ne 0 ] && _fatal "fsck failed"
+}
+
+# Btrfs was losing a rename into a new directory
+_rename_test()
+{
+ echo "rename fsync test"
+ _mount_flakey
+ touch $SCRATCH_MNT/foo
+ mkdir $SCRATCH_MNT/bar
+ $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/foo
+ mv $SCRATCH_MNT/foo $SCRATCH_MNT/bar/foo
+ $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/bar
+ $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/bar/foo
+ _load_flakey_table $drop_writes
+ _unmount_flakey
+
+ _load_flakey_table $allow_writes
+ _mount_flakey
+ _ls_l $SCRATCH_MNT | tail -n +2 | awk '{ print $1, $9 }'
+ _ls_l $SCRATCH_MNT/bar | tail -n +2 | awk '{ print $1, $9 }'
+ _unmount_flakey
+ _check_scratch_fs $FLAKEY_DEV
+ [ $? -ne 0 ] && _fatal "fsck failed"
+}
+
+# Btrfs was failing to replay a log when we had a inode with a smaller inode
+# number that is renamed into a directory with a higher inode number
+_replay_rename_test()
+{
+ echo "replay rename fsync test"
+ _mount_flakey
+ touch $SCRATCH_MNT/foo
+ mkdir $SCRATCH_MNT/bar
+ $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/foo
+ mv $SCRATCH_MNT/foo $SCRATCH_MNT/bar/foo
+ $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/bar
+
+ # This is to force btrfs to relog the entire inode including the ref so
+ # we are sure to try and replay the ref along with the dir_index item
+ setfattr -n user.foo -v blah $SCRATCH_MNT/bar/foo >> $seqres.full 2>&1
+
+ $XFS_IO_PROG -c "fsync" $SCRATCH_MNT/bar/foo
+ _load_flakey_table $drop_writes
+ _unmount_flakey
+
+ _load_flakey_table $allow_writes
+ _mount_flakey
+ _ls_l $SCRATCH_MNT | tail -n +2 | awk '{ print $1, $9 }'
+ _ls_l $SCRATCH_MNT/bar | tail -n +2 | awk '{ print $1, $9 }'
+ _unmount_flakey
+ _check_scratch_fs $FLAKEY_DEV
+ [ $? -ne 0 ] && _fatal "fsck failed"
+}
+
_scratch_mkfs >> $seqres.full 2>&1

# Create a basic flakey device that will never error out
@@ -157,5 +234,13 @@ for i in $(seq 1 20); do
_run_test $i $direct
done

+rm -rf $SCRATCH_MNT/*
+_unmount_flakey
+_directory_test
+_clean_working_dir
+_rename_test
+_clean_working_dir
+_replay_rename_test
+
status=0
exit
diff --git a/tests/generic/311.out b/tests/generic/311.out
index 5bad6a7..8a0d5c8 100644
--- a/tests/generic/311.out
+++ b/tests/generic/311.out
@@ -319,3 +319,11 @@ Running test 20 direct, nolockfs
Random seed is 20
a16ac2b84456d41a15a1a4cc1202179f
a16ac2b84456d41a15a1a4cc1202179f
+fsync new directory
+drwxr-xr-x bar
+rename fsync test
+drwxr-xr-x bar
+-rw-r--r-- foo
+replay rename fsync test
+drwxr-xr-x bar
+-rw-r--r-- foo
--
1.8.3.1