This is a test to validate that we're not adjusting up i_size before we
have the appropriate file extents on disk. We had a problem where
i_size would be adjusted up without a contiguous range of file extents,
which isn't ok without a special option enabled.
Signed-off-by: Josef Bacik <josef@xxxxxxxxxxxxxx>
---
tests/btrfs/172 | 74 +++++++++++++++++++++++++++++++++++++++++++++
tests/btrfs/172.out | 3 ++
tests/btrfs/group | 1 +
3 files changed, 78 insertions(+)
create mode 100755 tests/btrfs/172
create mode 100644 tests/btrfs/172.out
diff --git a/tests/btrfs/172 b/tests/btrfs/172
new file mode 100755
index 00000000..8c0c94d6
--- /dev/null
+++ b/tests/btrfs/172
@@ -0,0 +1,74 @@
+#! /bin/bash
+# SPDX-License-Identifier: GPL-2.0
+# Copyright (c) 2020 Facebook. All Rights Reserved.
+#
+# FS QA Test 172
+#
+# Validate that without no-holes we do not get an i_size that is after a gap in
+# the file extents on disk. This is fixed by the series
+#
+# btrfs: fix hole corruption issue with !NO_HOLES
+#
+seq=`basename $0`
+seqres=$RESULT_DIR/$seq
+echo "QA output created by $seq"
+
+here=`pwd`
+tmp=/tmp/$$
+status=1 # failure is the default!
+trap "_cleanup; exit \$status" 0 1 2 3 15
+
+_cleanup()
+{
+ cd /
+ rm -f $tmp.*
+}
+
+# get standard environment, filters and checks
+. ./common/rc
+. ./common/filter
+. ./common/dmlogwrites
+
+# remove previous $seqres.full before test
+rm -f $seqres.full
+
+# real QA test starts here
+
+# Modify as appropriate.
+_supported_fs btrfs
+_supported_os Linux
+_require_scratch
+_require_log_writes
+
+_log_writes_init $SCRATCH_DEV
+_log_writes_mkfs "-O ^no-holes" >> $seqres.full 2>&1
+
+# There's not a straightforward way to commit the transaction without also
+# flushing dirty pages, so shorten the commit interval to 5 so we're sure to get
+# a commit with our broken file
+_log_writes_mount -o commit=5
+
+$XFS_IO_PROG -f -c "pwrite 0 5m" $SCRATCH_MNT/file | _filter_xfs_io
+$XFS_IO_PROG -f -c "sync_range -abw 2m 1m" $SCRATCH_MNT/file | _filter_xfs_io
+
+# Now wait for a transaction commit to happen, wait 2x just to be super sure
+sleep 10
+
+_log_writes_unmount
+_log_writes_remove
+
+cur=$(_log_writes_find_next_fua 0)
+echo "cur=$cur" >> $seqres.full
+while [ ! -z "$cur" ]; do
+ _log_writes_replay_log_range $cur $SCRATCH_DEV >> $seqres.full
+
+ # We only care about the fs consistency, so just run fsck, we don't have
+ # to mount the fs to validate it
+ _check_scratch_fs
+
+ cur=$(_log_writes_find_next_fua $(($cur + 1)))
+done
+
+# success, all done
+status=0
+exit
diff --git a/tests/btrfs/172.out b/tests/btrfs/172.out
new file mode 100644
index 00000000..45051739
--- /dev/null
+++ b/tests/btrfs/172.out
@@ -0,0 +1,3 @@
+QA output created by 172
+wrote 5242880/5242880 bytes at offset 0
+XXX Bytes, X ops; XX:XX:XX.X (XXX YYY/sec and XXX ops/sec)
diff --git a/tests/btrfs/group b/tests/btrfs/group
index 4b64bf8b..527fbbf1 100644
--- a/tests/btrfs/group
+++ b/tests/btrfs/group
@@ -174,6 +174,7 @@
169 auto quick send
170 auto quick snapshot
171 auto quick qgroup
+172 auto quick
173 auto quick swap
174 auto quick swap
175 auto quick swap volume
--
2.24.1
