int arc_has_callback(arc_buf_t *buf);
void arc_buf_freeze(arc_buf_t *buf);
void arc_buf_thaw(arc_buf_t *buf);
+boolean_t arc_buf_eviction_needed(arc_buf_t *buf);
#ifdef ZFS_DEBUG
int arc_referenced(arc_buf_t *buf);
#endif
void l2arc_start(void);
void l2arc_stop(void);
+/* Global tunings */
+extern int zfs_write_limit_shift;
+extern unsigned long zfs_write_limit_max;
+extern kmutex_t zfs_write_limit_lock;
+
#ifdef __cplusplus
}
#endif