fs/bcachefs/nocow_locking_types.h

   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