This updates generic/098 by adding a sync option, i.e. 'sync' after the second write, and with btrfs's NO_HOLES, we could still get wrong isize after remount. This gets fixed by the patch 'Btrfs: fix truncate down when no_holes feature is enabled' Signed-off-by: Liu Bo <bo.li.liu@xxxxxxxxxx> --- tests/generic/098 | 57 ++++++++++++++++++++++++++++++++------------------- tests/generic/098.out | 10 +++++++++ 2 files changed, 46 insertions(+), 21 deletions(-) diff --git a/tests/generic/098 b/tests/generic/098 index 838bb5d..3b89939 100755 --- a/tests/generic/098 +++ b/tests/generic/098 @@ -64,27 +64,42 @@ rm -f $seqres.full _scratch_mkfs >>$seqres.full 2>&1 _scratch_mount -# Create our test file with some data and durably persist it. -$XFS_IO_PROG -f -c "pwrite -S 0xaa 0 128K" $SCRATCH_MNT/foo | _filter_xfs_io -sync - -# Append some data to the file, increasing its size, and leave a hole between -# the old size and the start offset if the following write. So our file gets -# a hole in the range [128Kb, 256Kb[. -$XFS_IO_PROG -c "pwrite -S 0xbb 256K 32K" $SCRATCH_MNT/foo | _filter_xfs_io - -# Now truncate our file to a smaller size that is in the middle of the hole we -# previously created. On most truncate implementations the data we appended -# before gets discarded from memory (with truncate_setsize()) and never ends -# up being written to disk. -$XFS_IO_PROG -c "truncate 160K" $SCRATCH_MNT/foo - -_scratch_cycle_mount - -# We expect to see a file with a size of 160Kb, with the first 128Kb of data all -# having the value 0xaa and the remaining 32Kb of data all having the value 0x00 -echo "File content after remount:" -od -t x1 $SCRATCH_MNT/foo +workout() +{ + NEED_SYNC=$1 + + # Create our test file with some data and durably persist it. + $XFS_IO_PROG -t -f -c "pwrite -S 0xaa 0 128K" $SCRATCH_MNT/foo | _filter_xfs_io + sync + + # Append some data to the file, increasing its size, and leave a hole between + # the old size and the start offset if the following write. So our file gets + # a hole in the range [128Kb, 256Kb[. + $XFS_IO_PROG -c "pwrite -S 0xbb 256K 32K" $SCRATCH_MNT/foo | _filter_xfs_io + + if [ $NEED_SYNC -eq 1 ]; then + sync + fi + + # Now truncate our file to a smaller size that is in the middle of the hole we + # previously created. + # If we don't flush dirty page cache above, on most truncate + # implementations the data we appended before gets discarded from + # memory (with truncate_setsize()) and never ends up being written to + # disk. + $XFS_IO_PROG -c "truncate 160K" $SCRATCH_MNT/foo + + _scratch_cycle_mount + + # We expect to see a file with a size of 160Kb, with the first 128Kb of data all + # having the value 0xaa and the remaining 32Kb of data all having the value 0x00 + echo "File content after remount:" + od -t x1 $SCRATCH_MNT/foo +} + +workout 0 +# flush after each write +workout 1 status=0 exit diff --git a/tests/generic/098.out b/tests/generic/098.out index 37415ee..f87f046 100644 --- a/tests/generic/098.out +++ b/tests/generic/098.out @@ -9,3 +9,13 @@ File content after remount: 0400000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 * 0500000 +wrote 131072/131072 bytes at offset 0 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +wrote 32768/32768 bytes at offset 262144 +XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec) +File content after remount: +0000000 aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa aa +* +0400000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 +* +0500000 -- 2.5.0 -- To unsubscribe from this list: send the line "unsubscribe fstests" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html