[v8,08/10] btrfs: add fstest for writing to a file at an offset with RST

Commit Message

Anand Jain Jan. 4, 2024, 5:48 a.m. UTC

From: Johannes Thumshirn <[e-mail]>

Add a fstest writing 4k at offset 64k to a file with one RAID tripe
already pre-filled for a raid-stripe-tree formatted file system.

Reviewed-by: Filipe Manana <[e-mail]>
Reviewed-by: Anand Jain <[e-mail]>
Signed-off-by: Johannes Thumshirn <[e-mail]>
Signed-off-by: Anand Jain <[e-mail]>
[Fixed the test statement and trailing white space in the .out file.]
---
 tests/btrfs/306     | 61 ++++++++++++++++++++++++++++++++++++
 tests/btrfs/306.out | 75 +++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 136 insertions(+)
 create mode 100755 tests/btrfs/306
 create mode 100644 tests/btrfs/306.out

Patch

diff --git a/tests/btrfs/306 b/tests/btrfs/306
new file mode 100755
index 000000000000..6e3843186fd5
--- /dev/null
+++ b/tests/btrfs/306
@@ -0,0 +1,61 @@ 
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2023 Western Digital Cooperation.  All Rights Reserved.
+#
+# FS QA Test 306
+#
+# Test on-disk layout of RAID Stripe Tree Metadata by writing 4k to an emppty
+# file at offset 64k with one stripe pre-filled on an otherwise pristine
+# filesystem.
+#
+. ./common/preamble
+_begin_fstest auto quick raid remount volume raid-stripe-tree
+
+. ./common/filter
+. ./common/filter.btrfs
+
+_supported_fs btrfs
+_require_btrfs_command inspect-internal dump-tree
+_require_btrfs_mkfs_feature "raid-stripe-tree"
+_require_scratch_dev_pool 4
+_require_btrfs_fs_feature "raid_stripe_tree"
+_require_btrfs_fs_feature "free_space_tree"
+_require_btrfs_free_space_tree
+_require_btrfs_no_compress
+
+test $(_get_page_size) -eq 4096 || _notrun "this tests requires 4k pagesize"
+
+test_4k_write_64koff()
+{
+	local profile=$1
+	local ndevs=$2
+
+	_scratch_dev_pool_get $ndevs
+
+	echo "==== Testing $profile ===="
+	_scratch_pool_mkfs -d $profile -m $profile -O raid-stripe-tree
+	_scratch_mount
+
+	# precondition one stripe
+	$XFS_IO_PROG -fc "pwrite 0 64k" "$SCRATCH_MNT/bar" | _filter_xfs_io
+
+	$XFS_IO_PROG -fc "pwrite 64k 4k" "$SCRATCH_MNT/foo" | _filter_xfs_io
+
+	_scratch_cycle_mount
+	md5sum "$SCRATCH_MNT/foo" | _filter_scratch
+
+	_scratch_unmount
+
+	$BTRFS_UTIL_PROG inspect-internal dump-tree -t raid_stripe $SCRATCH_DEV_POOL |\
+		_filter_stripe_tree
+
+	_scratch_dev_pool_put
+}
+echo "= Test 4k write to an empty file at offset 64k with one stripe prefilled ="
+test_4k_write_64koff raid0 2
+test_4k_write_64koff raid1 2
+test_4k_write_64koff raid10 4
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/306.out b/tests/btrfs/306.out
new file mode 100644
index 000000000000..25065674c77b
--- /dev/null
+++ b/tests/btrfs/306.out
@@ -0,0 +1,75 @@ 
+QA output created by 306
+= Test 4k write to an empty file at offset 64k with one stripe prefilled =
+==== Testing raid0 ====
+wrote 65536/65536 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 4096/4096 bytes at offset 65536
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+381b0e7d72cb4f75286fe2b445e8d92a  SCRATCH_MNT/foo
+
+raid stripe tree key (RAID_STRIPE_TREE ROOT_ITEM 0)
+leaf XXXXXXXXX items X free space XXXXX generation X owner RAID_STRIPE_TREE
+leaf XXXXXXXXX flags 0x1(WRITTEN) backref revision 1
+checksum stored <CHECKSUM>
+checksum calced <CHECKSUM>
+fs uuid <UUID>
+chunk uuid <UUID>
+	item 0 key (XXXXXX RAID_STRIPE 65536) itemoff XXXXX itemsize 24
+			encoding: RAID0
+			stripe 0 devid 1 physical XXXXXXXXX
+	item 1 key (XXXXXX RAID_STRIPE 4096) itemoff XXXXX itemsize 24
+			encoding: RAID0
+			stripe 0 devid 2 physical XXXXXXXXX
+total bytes XXXXXXXX
+bytes used XXXXXX
+uuid <UUID>
+==== Testing raid1 ====
+wrote 65536/65536 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 4096/4096 bytes at offset 65536
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+381b0e7d72cb4f75286fe2b445e8d92a  SCRATCH_MNT/foo
+
+raid stripe tree key (RAID_STRIPE_TREE ROOT_ITEM 0)
+leaf XXXXXXXXX items X free space XXXXX generation X owner RAID_STRIPE_TREE
+leaf XXXXXXXXX flags 0x1(WRITTEN) backref revision 1
+checksum stored <CHECKSUM>
+checksum calced <CHECKSUM>
+fs uuid <UUID>
+chunk uuid <UUID>
+	item 0 key (XXXXXX RAID_STRIPE 65536) itemoff XXXXX itemsize 40
+			encoding: RAID1
+			stripe 0 devid 1 physical XXXXXXXXX
+			stripe 1 devid 2 physical XXXXXXXXX
+	item 1 key (XXXXXX RAID_STRIPE 4096) itemoff XXXXX itemsize 40
+			encoding: RAID1
+			stripe 0 devid 1 physical XXXXXXXXX
+			stripe 1 devid 2 physical XXXXXXXXX
+total bytes XXXXXXXX
+bytes used XXXXXX
+uuid <UUID>
+==== Testing raid10 ====
+wrote 65536/65536 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+wrote 4096/4096 bytes at offset 65536
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
+381b0e7d72cb4f75286fe2b445e8d92a  SCRATCH_MNT/foo
+
+raid stripe tree key (RAID_STRIPE_TREE ROOT_ITEM 0)
+leaf XXXXXXXXX items X free space XXXXX generation X owner RAID_STRIPE_TREE
+leaf XXXXXXXXX flags 0x1(WRITTEN) backref revision 1
+checksum stored <CHECKSUM>
+checksum calced <CHECKSUM>
+fs uuid <UUID>
+chunk uuid <UUID>
+	item 0 key (XXXXXX RAID_STRIPE 65536) itemoff XXXXX itemsize 40
+			encoding: RAID10
+			stripe 0 devid 1 physical XXXXXXXXX
+			stripe 1 devid 2 physical XXXXXXXXX
+	item 1 key (XXXXXX RAID_STRIPE 4096) itemoff XXXXX itemsize 40
+			encoding: RAID10
+			stripe 0 devid 3 physical XXXXXXXXX
+			stripe 1 devid 4 physical XXXXXXXXX
+total bytes XXXXXXXX
+bytes used XXXXXX
+uuid <UUID>