An old issue might cause on-disk inode sizes are logged prematurely via the free eofblocks path on file close. Then fs shutdown might leave NULL files but their di_size > 0. Signed-off-by: Zorro Lang <zlang@xxxxxxxxxx> --- V2 replace "fiemap" with "stat" command, to check if a file has extents. That helps this case more common. Thanks, Zorro tests/generic/999 | 42 ++++++++++++++++++++++++++++++++++++++++++ tests/generic/999.out | 5 +++++ 2 files changed, 47 insertions(+) create mode 100755 tests/generic/999 create mode 100644 tests/generic/999.out diff --git a/tests/generic/999 b/tests/generic/999 new file mode 100755 index 00000000..8b4596e0 --- /dev/null +++ b/tests/generic/999 @@ -0,0 +1,42 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2022 Red Hat, Inc. All Rights Reserved. +# +# FS QA Test No. 999 +# +# Test an issue in the truncate codepath where on-disk inode sizes are logged +# prematurely via the free eofblocks path on file close. +# +. ./common/preamble +_begin_fstest auto quick shutdown + +# real QA test starts here +_supported_fs xfs +_require_scratch +_require_scratch_shutdown +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount + +echo "Create many small files with one extent at least" +for ((i=0; i<10000; i++));do + $XFS_IO_PROG -f -c "pwrite 0 4k" $SCRATCH_MNT/file.$i >/dev/null 2>&1 +done + +echo "Shutdown the fs suddently" +_scratch_shutdown + +echo "Cycle mount" +_scratch_cycle_mount + +echo "Check file's (di_size > 0) extents" +for f in $(find $SCRATCH_MNT -type f -size +0);do + # Check if the file has any extent + if [ "$(stat -c "%b" $f)" = "0" ];then + echo " - $f get no extents, but its di_size > 0" + break + fi +done + +# success, all done +status=0 +exit diff --git a/tests/generic/999.out b/tests/generic/999.out new file mode 100644 index 00000000..50008783 --- /dev/null +++ b/tests/generic/999.out @@ -0,0 +1,5 @@ +QA output created by 999 +Create many small files with one extent at least +Shutdown the fs suddently +Cycle mount +Check file's (di_size > 0) extents -- 2.31.1
