diff options
author | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-16 17:00:02 -0500 |
---|---|---|
committer | Kent Overstreet <kent.overstreet@linux.dev> | 2024-01-16 17:17:23 -0500 |
commit | b5fd066153c40a70a29caa1ea7987723ab687763 (patch) | |
tree | 6d43a8b0a90d549a54c65565ac96c92b3e84b594 /c_src/libbcachefs/seqmutex.h | |
parent | 06ff8b55b70fda44d91b31b5511fafd1680a8934 (diff) |
Move c_src dirs back to toplevel
We just wanted c sourcefiles out of the top level, not c source
directories.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Diffstat (limited to 'c_src/libbcachefs/seqmutex.h')
-rw-r--r-- | c_src/libbcachefs/seqmutex.h | 48 |
1 files changed, 0 insertions, 48 deletions
diff --git a/c_src/libbcachefs/seqmutex.h b/c_src/libbcachefs/seqmutex.h deleted file mode 100644 index c1860d81..00000000 --- a/c_src/libbcachefs/seqmutex.h +++ /dev/null @@ -1,48 +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); -} - -static inline void seqmutex_unlock(struct seqmutex *lock) -{ - lock->seq++; - mutex_unlock(&lock->lock); -} - -static inline u32 seqmutex_seq(struct seqmutex *lock) -{ - return lock->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 */ |