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#! /bin/bash
# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2010 IBM Corporation. All Rights Reserved.
#
# FS QA Test No. 228
#
# Check if fallocate respects RLIMIT_FSIZE
#
. ./common/preamble
_begin_fstest rw auto prealloc quick
# Override the default cleanup function.
_cleanup()
{
cd /
rm -f $tmp.*
sysctl -w kernel.core_pattern="$core_pattern" &>/dev/null
ulimit -c $ulimit_c
}
tmp=$TEST_DIR/$$
core_pattern=`sysctl -n kernel.core_pattern`
ulimit_c=`ulimit -c`
_register_cleanup "_cleanup" 25
# Import common functions.
# real QA test starts here
# generic, but xfs_io's fallocate must work
_supported_fs generic
# only Linux supports fallocate
_require_test
[ -n "$XFS_IO_PROG" ] || _notrun "xfs_io executable not found"
# Sanity check to see if fallocate works
_require_xfs_io_command "falloc"
# Check if we have good enough space available
avail=`df -P $TEST_DIR | awk 'END {print $4}'`
[ "$avail" -ge 104000 ] || _notrun "Test device is too small ($avail KiB)"
# Suppress core dumped messages
sysctl -w kernel.core_pattern=core &>/dev/null
ulimit -c 0
# Set the FSIZE ulimit to 100MB and check
ulimit -f 102400
flim=`ulimit -f`
[ "$flim" != "unlimited" ] || _notrun "Unable to set FSIZE ulimit"
[ "$flim" -eq 102400 ] || _notrun "FSIZE ulimit is not correct (100 MB)"
echo "File size limit is now set to 100 MB."
echo "Let us try to preallocate 101 MB. This should fail."
$XFS_IO_PROG -f -c 'falloc 0 101m' $TEST_DIR/ouch
rm -f $TEST_DIR/ouch
echo "Let us now try to preallocate 50 MB. This should succeed."
$XFS_IO_PROG -f -c 'falloc 0 50m' $TEST_DIR/ouch
rm -f $TEST_DIR/ouch
echo "Test over."
# success, all done
status=0
exit
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