2 # SPDX-License-Identifier: GPL-2.0
3 # Copyright (c) 2015 Facebook. All Rights Reserved.
7 # fallocate/truncate tests with FALLOC_FL_KEEP_SIZE option.
8 # Verify if the disk space is released after truncating a file to i_size after
9 # writing to a portion of a preallocated range.
11 # This also verifies that truncat'ing up past i_size doesn't remove the
15 _begin_fstest auto quick prealloc
17 status=0 # success is the default!
19 # Import common functions.
23 # real QA test starts here
25 # Modify as appropriate.
28 _require_xfs_io_command "falloc"
29 _require_xfs_io_command "fiemap"
31 # First test to make sure that truncating at i_size trims the preallocated bit
33 $XFS_IO_PROG -f -c "falloc -k 0 10M" -c "pwrite 0 5M" -c "truncate 5M"\
34 $TEST_DIR/testfile.$seq | _filter_xfs_io
36 $XFS_IO_PROG -c "fiemap -v" $TEST_DIR/testfile.$seq | _filter_fiemap
38 # Now verify that if we truncate up past i_size we don't trim the preallocated
40 $XFS_IO_PROG -c "falloc -k 5M 5M" -c "truncate 7M" $TEST_DIR/testfile.$seq
41 $XFS_IO_PROG -c "fiemap -v" $TEST_DIR/testfile.$seq | _filter_fiemap