On Sat, Jul 20, 2024 at 03:43:16PM +0800, Chao Yu wrote:
> Test that we will simulate sqlite atomic write logic w/ below steps:
> 1. create a regular file, and initialize it w/ 0xff data
> 2. start transaction (via F2FS_IOC_START_ATOMIC_WRITE) on it
> 3. write transaction data
> 4. trigger foreground GC to migrate data block of the file
> 5. commit and end the transaction
> 6. check consistency of transaction
> This is a regression test to check handling of race condition in
> between atomic_write and GC.
>
> Cc: Jaegeuk Kim <[email protected]>
> Cc: Daeho Jeong <[email protected]>
> Signed-off-by: Chao Yu <[email protected]>
> ---
> v2:
> - add kill&wait in _clean() to avoid umount failure
> - some cleanups
> - use exported helpler
> tests/f2fs/003 | 65 ++++++++++++++++++++++++++++++++++++++++++++++
> tests/f2fs/003.out | 11 ++++++++
> 2 files changed, 76 insertions(+)
> create mode 100755 tests/f2fs/003
> create mode 100644 tests/f2fs/003.out
>
> diff --git a/tests/f2fs/003 b/tests/f2fs/003
> new file mode 100755
> index 00000000..c30e874a
> --- /dev/null
> +++ b/tests/f2fs/003
> @@ -0,0 +1,65 @@
> +#! /bin/bash
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2024 Oppo. All Rights Reserved.
> +#
> +# FS QA Test No. f2fs/003
> +#
> +# Test that we will simulate sqlite atomic write logic w/ below steps:
> +# 1. create a regular file, and initialize it w/ 0xff data
> +# 2. start transaction (via F2FS_IOC_START_ATOMIC_WRITE) on it
> +# 3. write transaction data
> +# 4. trigger foreground GC to migrate data block of the file
> +# 5. commit and end the transaction (via F2FS_IOC_COMMIT_ATOMIC_WRITE)
> +# 6. check consistency of transaction w/ in-memory and on-disk data
> +# This is a regression test to check handling of race condition in
> +# between atomic_write and GC.
> +#
> +. ./common/preamble
> +_begin_fstest auto quick
> +
> +. ./common/filter
> +
> +_cleanup()
> +{
> + kill -9 $atomic_write_pid > /dev/null 2>&1
> + wait > /dev/null 2>&1
This version looks good to me, just this place, we need to keep the default
_cleanup steps.
cd /
rm -r -f $tmp.*
I'll do this change when I merge this patch.
(And please don't forget to update the _fixed_by_xxxxx information later.)
Reviewed-by: Zorro Lang <[email protected]>
Thanks,
Zorro
> +}
> +
> +_require_scratch
> +_require_xfs_io_command "fpunch"
> +
> +_scratch_mkfs >> $seqres.full
> +_scratch_mount >> $seqres.full
> +
> +dbfile=$SCRATCH_MNT/dbfile
> +foo=$SCRATCH_MNT/foo
> +bar=$SCRATCH_MNT/bar
> +
> +$XFS_IO_PROG -c "pwrite 0 512k -S 0xff" -c "fsync" -f $dbfile >> $seqres.full
> +$XFS_IO_PROG -c "pwrite 0 2m" -c "fsync" -f $foo >> $seqres.full
> +sync
> +
> +# start atomic_write on dbfile & write data to dbfile
> +$F2FS_IO_PROG write 1 0 32 zero atomic_commit $dbfile 3000 >> $seqres.full &
> +atomic_write_pid=$!
> +
> +$XFS_IO_PROG -c "fpunch 0 2m" $foo >> $seqres.full
> +$XFS_IO_PROG -c "pwrite 0 2m" -c "fsync" -f $bar >> $seqres.full
> +
> +# persist all dirty data
> +sync
> +echo 3 > /proc/sys/vm/drop_caches
> +
> +# trigger foreground GC to migrate data block of atomic_file
> +$F2FS_IO_PROG gc 1 $SCRATCH_MNT > /dev/null 2>&1
> +
> +# wait for atomic_write commit completion
> +sleep 5
> +# print in-memory data
> +_hexdump $dbfile
> +echo 3 > /proc/sys/vm/drop_caches
> +# print on-disk data
> +_hexdump $dbfile
> +
> +status=0
> +exit
> diff --git a/tests/f2fs/003.out b/tests/f2fs/003.out
> new file mode 100644
> index 00000000..64698d84
> --- /dev/null
> +++ b/tests/f2fs/003.out
> @@ -0,0 +1,11 @@
> +QA output created by 003
> +000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >................<
> +*
> +020000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >................<
> +*
> +080000
> +000000 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >................<
> +*
> +020000 ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff >................<
> +*
> +080000
> --
> 2.40.1
>
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