42 lines
945 B
C
42 lines
945 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/* Copyright (c) 2021 SUSE LLC */
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#ifndef LAPI_CLOSE_RANGE__
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# define LAPI_CLOSE_RANGE__
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# include "lapi/syscalls.h"
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# ifdef HAVE_LINUX_CLOSE_RANGE_H
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# include <linux/close_range.h>
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# endif
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# ifndef CLOSE_RANGE_UNSHARE
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# define CLOSE_RANGE_UNSHARE (1U << 1)
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# endif
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# ifndef CLOSE_RANGE_CLOEXEC
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# define CLOSE_RANGE_CLOEXEC (1U << 2)
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# endif
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# ifndef HAVE_CLOSE_RANGE
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static inline int close_range(unsigned int fd, unsigned int max_fd,
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unsigned int flags)
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{
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return tst_syscall(__NR_close_range, fd, max_fd, flags);
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}
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# endif
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static inline void close_range_supported_by_kernel(void)
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{
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long ret;
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if ((tst_kvercmp(5, 9, 0)) < 0) {
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/* Check if the syscall is backported on an older kernel */
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ret = syscall(__NR_close_range, 1, 0, 0);
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if (ret == -1 && errno == ENOSYS)
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tst_brk(TCONF, "Test not supported on kernel version < v5.9");
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}
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}
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#endif /* LAPI_CLOSE_RANGE_H__ */
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