71 	struct swap_info_struct *si;  in __swap_type_to_info()  local
73 	si = READ_ONCE(swap_info[type]); /* rcu_dereference() */  in __swap_type_to_info()
74 	VM_WARN_ON_ONCE(percpu_ref_is_zero(&si->users)); /* race with swapoff */  in __swap_type_to_info()
75 	return si;  in __swap_type_to_info()
84 		struct swap_info_struct *si, pgoff_t offset)  in __swap_offset_to_cluster()  argument
86 	VM_WARN_ON_ONCE(percpu_ref_is_zero(&si->users)); /* race with swapoff */  in __swap_offset_to_cluster()
87 	VM_WARN_ON_ONCE(offset >= si->max);  in __swap_offset_to_cluster()
88 	return &si->cluster_info[offset / SWAPFILE_CLUSTER];  in __swap_offset_to_cluster()
98 		struct swap_info_struct *si, unsigned long offset, bool irq)  in __swap_cluster_lock()  argument
100 	struct swap_cluster_info *ci = __swap_offset_to_cluster(si, offset);  in __swap_cluster_lock()
112 	VM_WARN_ON_ONCE(percpu_ref_is_zero(&si->users)); /* race with swapoff */  in __swap_cluster_lock()
122  * @si: swap device the cluster belongs to.
129 		struct swap_info_struct *si, unsigned long offset)  in swap_cluster_lock()  argument
131 	return __swap_cluster_lock(si, offset, false);  in swap_cluster_lock()
260 void swapcache_clear(struct swap_info_struct *si, swp_entry_t entry, int nr);
306 	struct swap_info_struct *si = __swap_entry_to_info(entry);  in non_swapcache_batch()  local
316 		if ((si->swap_map[offset + i] & SWAP_HAS_CACHE))  in non_swapcache_batch()
326 	struct swap_info_struct *si, pgoff_t offset, bool irq)  in swap_cluster_lock()  argument
400 static inline void swapcache_clear(struct swap_info_struct *si, swp_entry_t entry, int nr)  in swapcache_clear()  argument