This commit adds new tests that checks the behaviour of xfs/ext4 filesystems when extsize hint is set on file with inode size as 0, non-empty files with allocated and delalloc extents and so on. Although currently this test is placed under tests/generic, it only runs on xfs and there is an ongoing patch series[1] to enable extsize hints for ext4 as well. [1] https://lore.kernel.org/linux-ext4/cover.1726034272.git.ojaswin@xxxxxxxxxxxxx/ Reviewed-by Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx> Reviewed-by: Ojaswin Mujoo <ojaswin@xxxxxxxxxxxxx> Suggested-by: Ojaswin Mujoo <ojaswin@xxxxxxxxxxxxx> Signed-off-by: Nirjhar Roy <nirjhar@xxxxxxxxxxxxx> --- tests/generic/366 | 172 ++++++++++++++++++++++++++++++++++++++++++ tests/generic/366.out | 26 +++++++ 2 files changed, 198 insertions(+) create mode 100755 tests/generic/366 create mode 100644 tests/generic/366.out diff --git a/tests/generic/366 b/tests/generic/366 new file mode 100755 index 00000000..7ff4e8e2 --- /dev/null +++ b/tests/generic/366 @@ -0,0 +1,172 @@ +#! /bin/bash +# SPDX-License-Identifier: GPL-2.0 +# Copyright (c) 2024 Nirjhar Roy (nirjhar@xxxxxxxxxxxxx). All Rights Reserved. +# +# FS QA Test 366 +# +# This test verifies that extent allocation hint setting works correctly on files with +# no extents allocated and non-empty files which are truncated. It also checks that the +# extent hints setting fails with non-empty file i.e, with any file with allocated +# extents or delayed allocation. We also check if the extsize value and the +# xflag bit actually got reflected after setting/re-setting the extsize value. + +. ./common/config +. ./common/filter +. ./common/preamble + +_begin_fstest ioctl quick + +_supported_fs xfs + +_fixed_by_kernel_commit "2a492ff66673 \ + xfs: Check for delayed allocations before setting extsize" + +_require_scratch + +FILE_DATA_SIZE=1M + +get_default_extsize() +{ + if [ -z $1 ] || [ ! -d $1 ]; then + echo "Missing mount point argument for get_default_extsize" + exit 1 + fi + $XFS_IO_PROG -c "extsize" "$1" | sed 's/^\[\([0-9]\+\)\].*/\1/' +} + +filter_extsz() +{ + sed "s/\[$1\]/\[EXTSIZE\]/g" +} + +setup() +{ + _scratch_mkfs >> "$seqres.full" 2>&1 + _scratch_mount >> "$seqres.full" 2>&1 + BLKSZ=`_get_block_size $SCRATCH_MNT` + DEFAULT_EXTSIZE=`get_default_extsize $SCRATCH_MNT` + EXTSIZE=$(( BLKSZ*2 )) + # Making sure the new extsize is not the same as the default extsize + [[ "$DEFAULT_EXTSIZE" -eq "$EXTSIZE" ]] && EXTSIZE=$(( BLKSZ*4 )) +} + +read_file_extsize() +{ + $XFS_IO_PROG -c "extsize" $1 | _filter_scratch | filter_extsz $2 +} + +check_extsz_and_xflag() +{ + local filename=$1 + local extsize=$2 + read_file_extsize $filename $extsize + _test_fsx_xflags_field $filename "e" && echo "e flag set" || echo "e flag unset" +} + +check_extsz_xflag_across_remount() +{ + local filename=$1 + local extsize=$2 + _scratch_cycle_mount + check_extsz_and_xflag $filename $extsize +} + +# Extsize flag should be cleared when extsize is reset, so this function +# checks that this behavior is followed. +reset_extsz_and_recheck_extsz_xflag() +{ + local filename=$1 + echo "Re-setting extsize hint to 0" + $XFS_IO_PROG -c "extsize 0" $filename + check_extsz_xflag_across_remount $filename "0" +} + +check_extsz_xflag_before_and_after_reset() +{ + local filename=$1 + local extsize=$2 + check_extsz_xflag_across_remount $filename $extsize + reset_extsz_and_recheck_extsz_xflag $filename +} + +test_empty_file() +{ + echo "TEST: Set extsize on empty file" + local filename=$1 + $XFS_IO_PROG \ + -c "open -f $filename" \ + -c "extsize $EXTSIZE" \ + + check_extsz_xflag_before_and_after_reset $filename $EXTSIZE + echo +} + +test_data_delayed() +{ + echo "TEST: Set extsize on non-empty file with delayed allocation" + local filename=$1 + $XFS_IO_PROG \ + -c "open -f $filename" \ + -c "pwrite -q 0 $FILE_DATA_SIZE" \ + -c "extsize $EXTSIZE" | _filter_scratch + + echo "test for default extsize setting if any" + read_file_extsize $filename $DEFAULT_EXTSIZE + echo +} + +test_data_allocated() +{ + echo "TEST: Set extsize on non-empty file with allocated extents" + local filename=$1 + $XFS_IO_PROG \ + -c "open -f $filename" \ + -c "pwrite -qW 0 $FILE_DATA_SIZE" \ + -c "extsize $EXTSIZE" | _filter_scratch + + echo "test for default extsize setting if any" + read_file_extsize $filename $DEFAULT_EXTSIZE + echo +} + +test_truncate_allocated() +{ + echo "TEST: Set extsize after truncating a file with allocated extents" + local filename=$1 + $XFS_IO_PROG \ + -c "open -f $filename" \ + -c "pwrite -qW 0 $FILE_DATA_SIZE" \ + -c "truncate 0" \ + -c "extsize $EXTSIZE" \ + + check_extsz_xflag_across_remount $filename $EXTSIZE + echo +} + +test_truncate_delayed() +{ + echo "TEST: Set extsize after truncating a file with delayed allocation" + local filename=$1 + $XFS_IO_PROG \ + -c "open -f $filename" \ + -c "pwrite -q 0 $FILE_DATA_SIZE" \ + -c "truncate 0" \ + -c "extsize $EXTSIZE" \ + + check_extsz_xflag_across_remount $filename $EXTSIZE + echo +} + +setup +echo -e "EXTSIZE = $EXTSIZE DEFAULT_EXTSIZE = $DEFAULT_EXTSIZE BLOCKSIZE = $BLKSZ\n" >> "$seqres.full" + +NEW_FILE_NAME_PREFIX=$SCRATCH_MNT/new-file- + +test_empty_file "$NEW_FILE_NAME_PREFIX"00 +test_data_delayed "$NEW_FILE_NAME_PREFIX"01 +test_data_allocated "$NEW_FILE_NAME_PREFIX"02 +test_truncate_allocated "$NEW_FILE_NAME_PREFIX"03 +test_truncate_delayed "$NEW_FILE_NAME_PREFIX"04 + +status=0 +exit diff --git a/tests/generic/366.out b/tests/generic/366.out new file mode 100644 index 00000000..cdd2f5fa --- /dev/null +++ b/tests/generic/366.out @@ -0,0 +1,26 @@ +QA output created by 366 +TEST: Set extsize on empty file +[EXTSIZE] SCRATCH_MNT/new-file-00 +e flag set +Re-setting extsize hint to 0 +[EXTSIZE] SCRATCH_MNT/new-file-00 +e flag unset + +TEST: Set extsize on non-empty file with delayed allocation +xfs_io: FS_IOC_FSSETXATTR SCRATCH_MNT/new-file-01: Invalid argument +test for default extsize setting if any +[EXTSIZE] SCRATCH_MNT/new-file-01 + +TEST: Set extsize on non-empty file with allocated extents +xfs_io: FS_IOC_FSSETXATTR SCRATCH_MNT/new-file-02: Invalid argument +test for default extsize setting if any +[EXTSIZE] SCRATCH_MNT/new-file-02 + +TEST: Set extsize after truncating a file with allocated extents +[EXTSIZE] SCRATCH_MNT/new-file-03 +e flag set + +TEST: Set extsize after truncating a file with delayed allocation +[EXTSIZE] SCRATCH_MNT/new-file-04 +e flag set + -- 2.43.5
