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