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-rw-r--r--fs/bcachefs/seqmutex.h45
1 files changed, 0 insertions, 45 deletions
diff --git a/fs/bcachefs/seqmutex.h b/fs/bcachefs/seqmutex.h
deleted file mode 100644
index c4b3d8d3f414..000000000000
--- a/fs/bcachefs/seqmutex.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_SEQMUTEX_H
-#define _BCACHEFS_SEQMUTEX_H
-
-#include <linux/mutex.h>
-
-struct seqmutex {
- struct mutex lock;
- u32 seq;
-};
-
-#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)
-{
- mutex_lock(&lock->lock);
- lock->seq++;
-}
-
-static inline u32 seqmutex_unlock(struct seqmutex *lock)
-{
- u32 seq = lock->seq;
- mutex_unlock(&lock->lock);
- return seq;
-}
-
-static inline bool seqmutex_relock(struct seqmutex *lock, u32 seq)
-{
- if (lock->seq != seq || !mutex_trylock(&lock->lock))
- return false;
-
- if (lock->seq != seq) {
- mutex_unlock(&lock->lock);
- return false;
- }
-
- return true;
-}
-
-#endif /* _BCACHEFS_SEQMUTEX_H */