| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef _BCACHEFS_SEQMUTEX_H |
| #define _BCACHEFS_SEQMUTEX_H |
| #define seqmutex_init(_lock) mutex_init(&(_lock)->lock) |
| static inline bool seqmutex_trylock(struct seqmutex *lock) |
| return mutex_trylock(&lock->lock); |
| static inline void seqmutex_lock(struct seqmutex *lock) |
| static inline void seqmutex_unlock(struct seqmutex *lock) |
| mutex_unlock(&lock->lock); |
| static inline u32 seqmutex_seq(struct seqmutex *lock) |
| static inline bool seqmutex_relock(struct seqmutex *lock, u32 seq) |
| if (lock->seq != seq || !mutex_trylock(&lock->lock)) |
| mutex_unlock(&lock->lock); |
| #endif /* _BCACHEFS_SEQMUTEX_H */ |