This test covers data & metadata integrity check with directio with o_sync flag and checks the file contents & size after sudden fileystem shutdown once the directio write is completed. ext4 directio after iomap conversion was broken in the sense that if the FS crashes after synchronous directio write, it's file size is not properly updated. This test adds a testcase to cover such scenario. Man page of open says that - O_SYNC provides synchronized I/O file integrity completion, meaning write operations will flush data and all associated metadata to the underlying hardware Reported-by: Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx> Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx> --- tests/generic/733 | 54 +++++++++++++++++++++++++++++++++++++++++++ tests/generic/733.out | 22 ++++++++++++++++++ 2 files changed, 76 insertions(+) create mode 100755 tests/generic/733 create mode 100644 tests/generic/733.out diff --git a/tests/generic/733 b/tests/generic/733 new file mode 100755 index 00000000..18021e8a --- /dev/null +++ b/tests/generic/733 @@ -0,0 +1,54 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2023 IBM Corporation. All Rights Reserved. +# +# FS QA Test 471 +# +# Integrity test for O_SYNC with buff-io, dio, aio-dio with sudden shutdown. +# Based on a testcase reported by Gao Xiang <hsiangkao@xxxxxxxxxxxxxxxxx> +# + +. ./common/preamble +_begin_fstest auto quick shutdown aio + +# real QA test starts here +_supported_fs generic +_require_scratch +_require_scratch_shutdown +_require_aiodio aio-dio-write-verify + +_fixed_by_kernel_commit 91562895f803 \ + "ext4: properly sync file size update after O_SYNC direct IO" + +_scratch_mkfs > $seqres.full 2>&1 +_scratch_mount + +echo "T-1: Create a 1M file using buff-io & O_SYNC" +$XFS_IO_PROG -fs -c "pwrite -S 0x5a 0 1M" $SCRATCH_MNT/testfile.t1 > /dev/null 2>&1 +echo "T-1: Shutdown the fs suddenly" +_scratch_shutdown +echo "T-1: Cycle mount" +_scratch_cycle_mount +echo "T-1: File contents after cycle mount" +_hexdump $SCRATCH_MNT/testfile.t1 + +echo "T-2: Create a 1M file using O_DIRECT & O_SYNC" +$XFS_IO_PROG -fsd -c "pwrite -S 0x5a 0 1M" $SCRATCH_MNT/testfile.t2 > /dev/null 2>&1 +echo "T-2: Shutdown the fs suddenly" +_scratch_shutdown +echo "T-2: Cycle mount" +_scratch_cycle_mount +echo "T-2: File contents after cycle mount" +_hexdump $SCRATCH_MNT/testfile.t2 + +echo "T-3: Create a 1M file using AIO-DIO & O_SYNC" +$AIO_TEST -a size=1048576 -S -N $SCRATCH_MNT/testfile.t3 > /dev/null 2>&1 +echo "T-3: Shutdown the fs suddenly" +_scratch_shutdown +echo "T-3: Cycle mount" +_scratch_cycle_mount +echo "T-3: File contents after cycle mount" +_hexdump $SCRATCH_MNT/testfile.t3 + +status=0 +exit diff --git a/tests/generic/733.out b/tests/generic/733.out new file mode 100644 index 00000000..e0536a4e --- /dev/null +++ b/tests/generic/733.out @@ -0,0 +1,22 @@ +QA output created by 733 +T-1: Create a 1M file using buff-io & O_SYNC +T-1: Shutdown the fs suddenly +T-1: Cycle mount +T-1: File contents after cycle mount +000000 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a >ZZZZZZZZZZZZZZZZ< +* +100000 +T-2: Create a 1M file using O_DIRECT & O_SYNC +T-2: Shutdown the fs suddenly +T-2: Cycle mount +T-2: File contents after cycle mount +000000 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a >ZZZZZZZZZZZZZZZZ< +* +100000 +T-3: Create a 1M file using AIO-DIO & O_SYNC +T-3: Shutdown the fs suddenly +T-3: Cycle mount +T-3: File contents after cycle mount +000000 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a 5a >ZZZZZZZZZZZZZZZZ< +* +100000 -- 2.41.0
