mirror of
https://github.com/koverstreet/bcachefs-tools.git
synced 2025-02-23 00:00:02 +03:00
f5baaf48e3
This moves the Rust sources out of rust_src/ and into the top level. Running the bcachefs executable out of the development tree is now: $ ./target/release/bcachefs command or $ cargo run --profile release -- command instead of "./bcachefs command". Building and installing is still: $ make && make install Signed-off-by: Thomas Bertschinger <tahbertschinger@gmail.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
49 lines
869 B
C
49 lines
869 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _BCACHEFS_SEQMUTEX_H
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#define _BCACHEFS_SEQMUTEX_H
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#include <linux/mutex.h>
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struct seqmutex {
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struct mutex lock;
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u32 seq;
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};
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#define seqmutex_init(_lock) mutex_init(&(_lock)->lock)
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static inline bool seqmutex_trylock(struct seqmutex *lock)
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{
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return mutex_trylock(&lock->lock);
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}
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static inline void seqmutex_lock(struct seqmutex *lock)
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{
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mutex_lock(&lock->lock);
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}
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static inline void seqmutex_unlock(struct seqmutex *lock)
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{
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lock->seq++;
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mutex_unlock(&lock->lock);
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}
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static inline u32 seqmutex_seq(struct seqmutex *lock)
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{
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return lock->seq;
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}
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static inline bool seqmutex_relock(struct seqmutex *lock, u32 seq)
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{
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if (lock->seq != seq || !mutex_trylock(&lock->lock))
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return false;
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if (lock->seq != seq) {
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mutex_unlock(&lock->lock);
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return false;
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}
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return true;
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}
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#endif /* _BCACHEFS_SEQMUTEX_H */
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