mirror of https://github.com/torvalds/linux.git
35 lines
860 B
C
35 lines
860 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2019 Samsung Electronics Co., Ltd.
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*/
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#ifndef __KSMBD_TIME_WRAPPERS_H
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#define __KSMBD_TIME_WRAPPERS_H
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/*
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* A bunch of ugly hacks to workaoround all the API differences
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* between different kernel versions.
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*/
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#define NTFS_TIME_OFFSET ((u64)(369*365 + 89) * 24 * 3600 * 10000000)
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/* Convert the Unix UTC into NT UTC. */
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static inline u64 ksmbd_UnixTimeToNT(struct timespec64 t)
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{
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/* Convert to 100ns intervals and then add the NTFS time offset. */
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return (u64) t.tv_sec * 10000000 + t.tv_nsec / 100 + NTFS_TIME_OFFSET;
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}
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struct timespec64 ksmbd_NTtimeToUnix(__le64 ntutc);
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#define KSMBD_TIME_TO_TM time64_to_tm
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static inline long long ksmbd_systime(void)
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{
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struct timespec64 ts;
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ktime_get_real_ts64(&ts);
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return ksmbd_UnixTimeToNT(ts);
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}
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#endif /* __KSMBD_TIME_WRAPPERS_H */
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