move Rust sources to top level, C sources into c_src

[bcachefs-tools-debian] / c_src / libbcachefs / nocow_locking_types.h

diff --git a/c_src/libbcachefs/nocow_locking_types.h b/c_src/libbcachefs/nocow_locking_types.h
new file mode 100644 (file)
index 0000000..bd12bf6
--- /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 */
+