diff options
Diffstat (limited to 'c_src/libbcachefs/nocow_locking_types.h')
| -rw-r--r-- | c_src/libbcachefs/nocow_locking_types.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/c_src/libbcachefs/nocow_locking_types.h b/c_src/libbcachefs/nocow_locking_types.h new file mode 100644 index 00000000..bd12bf67 --- /dev/null +++ b/c_src/libbcachefs/nocow_locking_types.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _BCACHEFS_NOCOW_LOCKING_TYPES_H +#define _BCACHEFS_NOCOW_LOCKING_TYPES_H + +#define BUCKET_NOCOW_LOCKS_BITS 10 +#define BUCKET_NOCOW_LOCKS (1U << BUCKET_NOCOW_LOCKS_BITS) + +struct nocow_lock_bucket { + struct closure_waitlist wait; + spinlock_t lock; + u64 b[4]; + atomic_t l[4]; +} __aligned(SMP_CACHE_BYTES); + +struct bucket_nocow_lock_table { + struct nocow_lock_bucket l[BUCKET_NOCOW_LOCKS]; +}; + +#endif /* _BCACHEFS_NOCOW_LOCKING_TYPES_H */ + |