24 	unsigned long protected, old_protected;  in propagate_protected_usage()  local
30 	protected = min(usage, READ_ONCE(c->min));  in propagate_protected_usage()
32 	if (protected != old_protected) {  in propagate_protected_usage()
33 		old_protected = atomic_long_xchg(&c->min_usage, protected);  in propagate_protected_usage()
34 		delta = protected - old_protected;  in propagate_protected_usage()
39 	protected = min(usage, READ_ONCE(c->low));  in propagate_protected_usage()
41 	if (protected != old_protected) {  in propagate_protected_usage()
42 		old_protected = atomic_long_xchg(&c->low_usage, protected);  in propagate_protected_usage()
43 		delta = protected - old_protected;  in propagate_protected_usage()
228  * page_counter_set_min - set the amount of protected memory
245  * page_counter_set_low - set the amount of protected memory
342 	unsigned long protected;  in effective_protection()  local
345 	protected = min(usage, setting);  in effective_protection()
357 		return protected * parent_effective / siblings_protected;  in effective_protection()
362 	 * and utilizes is effectively protected.  in effective_protection()
374 	ep = protected;  in effective_protection()
382 	 * collectively protected from neighboring trees.  in effective_protection()
389 	 * protected values. One should imply the other, but they  in effective_protection()
397 	    usage > protected) {  in effective_protection()
401 		unclaimed *= usage - protected;  in effective_protection()