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56 lines
1.6 KiB
Bash
Executable File
56 lines
1.6 KiB
Bash
Executable File
#!/bin/sh
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# Ensure 'df --sync' works.
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# Copyright (C) 2026 Free Software Foundation, Inc.
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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. "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
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print_ver_ df
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# This test is marked "very expensive" since calling sync() can take a long
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# time on a busy system.
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very_expensive_
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require_strace_ 'sync,statfs,fstatfs'
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# Check that sync was called before statfs or statvfs.
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check_sync ()
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{
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seen_sync=0
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while IFS= read line; do
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case "$line" in
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sync\(*) seen_sync=1 ;;
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statfs\(*|fstatfs\(*)
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if test "$seen_sync" -eq 1; then
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return 0
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else
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return 1
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fi
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;;
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esac
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done < "$1"
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# Fail if we don't see statfs or fstatfs.
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return 1
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}
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# Make sure that 'df --sync' calls sync() before gathering usage information.
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strace -o strace.out -e trace=sync,statfs,fstatfs df --sync || fail=1
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check_sync strace.out || fail=1
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# Also check it with a file given as the argument.
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strace -o strace.out -e trace=sync,statfs,fstatfs df --sync . || fail=1
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check_sync strace.out || fail=1
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Exit $fail
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