1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _BCACHEFS_NOCOW_LOCKING_TYPES_H
3 #define _BCACHEFS_NOCOW_LOCKING_TYPES_H
4
5 #define BUCKET_NOCOW_LOCKS_BITS 10
6 #define BUCKET_NOCOW_LOCKS (1U << BUCKET_NOCOW_LOCKS_BITS)
7
8 struct nocow_lock_bucket {
9 struct closure_waitlist wait;
10 spinlock_t lock;
11 u64 b[4];
12 atomic_t l[4];
13 } __aligned(SMP_CACHE_BYTES);
14
15 struct bucket_nocow_lock_table {
16 struct nocow_lock_bucket l[BUCKET_NOCOW_LOCKS];
17 };
18
19 #endif /* _BCACHEFS_NOCOW_LOCKING_TYPES_H */
20
21
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