#include <linux/bug.h> #ifdef CONFIG_ZCACHE_DEBUG /* we try to keep these statistics SMP-consistent */extern ssize_t zcache_obj_count;static atomic_t zcache_obj_atomic = ATOMIC_INIT(0);extern ssize_t zcache_obj_count_max;static inline void inc_zcache_obj_count(void){	zcache_obj_count = atomic_inc_return(&zcache_obj_atomic);	if (zcache_obj_count > zcache_obj_count_max)		zcache_obj_count_max = zcache_obj_count;}static inline void dec_zcache_obj_count(void){	zcache_obj_count = atomic_dec_return(&zcache_obj_atomic);	BUG_ON(zcache_obj_count < 0);};extern ssize_t zcache_objnode_count;static atomic_t zcache_objnode_atomic = ATOMIC_INIT(0);extern ssize_t zcache_objnode_count_max;static inline void inc_zcache_objnode_count(void){	zcache_objnode_count = atomic_inc_return(&zcache_objnode_atomic);	if (zcache_objnode_count > zcache_objnode_count_max)		zcache_objnode_count_max = zcache_objnode_count;};static inline void dec_zcache_objnode_count(void){	zcache_objnode_count = atomic_dec_return(&zcache_objnode_atomic);	BUG_ON(zcache_objnode_count < 0);};extern u64 zcache_eph_zbytes;static atomic_long_t zcache_eph_zbytes_atomic = ATOMIC_INIT(0);extern u64 zcache_eph_zbytes_max;static inline void inc_zcache_eph_zbytes(unsigned clen){	zcache_eph_zbytes = atomic_long_add_return(clen, &zcache_eph_zbytes_atomic);	if (zcache_eph_zbytes > zcache_eph_zbytes_max)		zcache_eph_zbytes_max = zcache_eph_zbytes;};static inline void dec_zcache_eph_zbytes(unsigned zsize){	zcache_eph_zbytes = atomic_long_sub_return(zsize, &zcache_eph_zbytes_atomic);};extern  u64 zcache_pers_zbytes;static atomic_long_t zcache_pers_zbytes_atomic = ATOMIC_INIT(0);extern u64 zcache_pers_zbytes_max;static inline void inc_zcache_pers_zbytes(unsigned clen){	zcache_pers_zbytes = atomic_long_add_return(clen, &zcache_pers_zbytes_atomic);	if (zcache_pers_zbytes > zcache_pers_zbytes_max)		zcache_pers_zbytes_max = zcache_pers_zbytes;}static inline void dec_zcache_pers_zbytes(unsigned zsize){	zcache_pers_zbytes = atomic_long_sub_return(zsize, &zcache_pers_zbytes_atomic);}extern ssize_t zcache_eph_pageframes;static atomic_t zcache_eph_pageframes_atomic = ATOMIC_INIT(0);extern ssize_t zcache_eph_pageframes_max;static inline void inc_zcache_eph_pageframes(void){	zcache_eph_pageframes = atomic_inc_return(&zcache_eph_pageframes_atomic);	if (zcache_eph_pageframes > zcache_eph_pageframes_max)		zcache_eph_pageframes_max = zcache_eph_pageframes;};static inline void dec_zcache_eph_pageframes(void){	zcache_eph_pageframes = atomic_dec_return(&zcache_eph_pageframes_atomic);};extern ssize_t zcache_pers_pageframes;static atomic_t zcache_pers_pageframes_atomic = ATOMIC_INIT(0);extern ssize_t zcache_pers_pageframes_max;static inline void inc_zcache_pers_pageframes(void){	zcache_pers_pageframes = atomic_inc_return(&zcache_pers_pageframes_atomic);	if (zcache_pers_pageframes > zcache_pers_pageframes_max)		zcache_pers_pageframes_max = zcache_pers_pageframes;}static inline void dec_zcache_pers_pageframes(void){	zcache_pers_pageframes = atomic_dec_return(&zcache_pers_pageframes_atomic);}extern ssize_t zcache_pageframes_alloced;static atomic_t zcache_pageframes_alloced_atomic = ATOMIC_INIT(0);static inline void inc_zcache_pageframes_alloced(void){	zcache_pageframes_alloced = atomic_inc_return(&zcache_pageframes_alloced_atomic);};extern ssize_t zcache_pageframes_freed;static atomic_t zcache_pageframes_freed_atomic = ATOMIC_INIT(0);static inline void inc_zcache_pageframes_freed(void){	zcache_pageframes_freed = atomic_inc_return(&zcache_pageframes_freed_atomic);}extern ssize_t zcache_eph_zpages;static atomic_t zcache_eph_zpages_atomic = ATOMIC_INIT(0);extern ssize_t zcache_eph_zpages_max;static inline void inc_zcache_eph_zpages(void){	zcache_eph_zpages = atomic_inc_return(&zcache_eph_zpages_atomic);	if (zcache_eph_zpages > zcache_eph_zpages_max)		zcache_eph_zpages_max = zcache_eph_zpages;}static inline void dec_zcache_eph_zpages(unsigned zpages){	zcache_eph_zpages = atomic_sub_return(zpages, &zcache_eph_zpages_atomic);}extern ssize_t zcache_pers_zpages;static atomic_t zcache_pers_zpages_atomic = ATOMIC_INIT(0);extern ssize_t zcache_pers_zpages_max;static inline void inc_zcache_pers_zpages(void){	zcache_pers_zpages = atomic_inc_return(&zcache_pers_zpages_atomic);	if (zcache_pers_zpages > zcache_pers_zpages_max)		zcache_pers_zpages_max = zcache_pers_zpages;}static inline void dec_zcache_pers_zpages(unsigned zpages){	zcache_pers_zpages = atomic_sub_return(zpages, &zcache_pers_zpages_atomic);} extern ssize_t zcache_zero_filled_pages;static atomic_t zcache_zero_filled_pages_atomic = ATOMIC_INIT(0);extern ssize_t zcache_zero_filled_pages_max;static inline void inc_zcache_zero_filled_pages(void){	zcache_zero_filled_pages = atomic_inc_return(					&zcache_zero_filled_pages_atomic);	if (zcache_zero_filled_pages > zcache_zero_filled_pages_max)		zcache_zero_filled_pages_max = zcache_zero_filled_pages;}static inline void dec_zcache_zero_filled_pages(void){	zcache_zero_filled_pages = atomic_dec_return(					&zcache_zero_filled_pages_atomic);}static inline unsigned long curr_pageframes_count(void){	return zcache_pageframes_alloced -		atomic_read(&zcache_pageframes_freed_atomic) -		atomic_read(&zcache_eph_pageframes_atomic) -		atomic_read(&zcache_pers_pageframes_atomic);};/* but for the rest of these, counting races are ok */extern ssize_t zcache_flush_total;extern ssize_t zcache_flush_found;extern ssize_t zcache_flobj_total;extern ssize_t zcache_flobj_found;extern ssize_t zcache_failed_eph_puts;extern ssize_t zcache_failed_pers_puts;extern ssize_t zcache_failed_getfreepages;extern ssize_t zcache_failed_alloc;extern ssize_t zcache_put_to_flush;extern ssize_t zcache_compress_poor;extern ssize_t zcache_mean_compress_poor;extern ssize_t zcache_eph_ate_tail;extern ssize_t zcache_eph_ate_tail_failed;extern ssize_t zcache_pers_ate_eph;extern ssize_t zcache_pers_ate_eph_failed;extern ssize_t zcache_evicted_eph_zpages;extern ssize_t zcache_evicted_eph_pageframes; extern ssize_t zcache_last_active_file_pageframes;extern ssize_t zcache_last_inactive_file_pageframes;extern ssize_t zcache_last_active_anon_pageframes;extern ssize_t zcache_last_inactive_anon_pageframes;static ssize_t zcache_eph_nonactive_puts_ignored;static ssize_t zcache_pers_nonactive_puts_ignored;#ifdef CONFIG_ZCACHE_WRITEBACKextern ssize_t zcache_writtenback_pages;extern ssize_t zcache_outstanding_writeback_pages;#endif static inline void inc_zcache_flush_total(void){	zcache_flush_total++;};static inline void inc_zcache_flush_found(void){	zcache_flush_found++;};static inline void inc_zcache_flobj_total(void){	zcache_flobj_total++;};static inline void inc_zcache_flobj_found(void){	zcache_flobj_found++;};static inline void inc_zcache_failed_eph_puts(void){	zcache_failed_eph_puts++;};static inline void inc_zcache_failed_pers_puts(void){	zcache_failed_pers_puts++;};static inline void inc_zcache_failed_getfreepages(void){	zcache_failed_getfreepages++;};static inline void inc_zcache_failed_alloc(void){	zcache_failed_alloc++;};static inline void inc_zcache_put_to_flush(void){	zcache_put_to_flush++;};static inline void inc_zcache_compress_poor(void){	zcache_compress_poor++;};static inline void inc_zcache_mean_compress_poor(void){	zcache_mean_compress_poor++;};static inline void inc_zcache_eph_ate_tail(void){	zcache_eph_ate_tail++;};static inline void inc_zcache_eph_ate_tail_failed(void){	zcache_eph_ate_tail_failed++;};static inline void inc_zcache_pers_ate_eph(void){	zcache_pers_ate_eph++;};static inline void inc_zcache_pers_ate_eph_failed(void){	zcache_pers_ate_eph_failed++;};static inline void inc_zcache_evicted_eph_zpages(unsigned zpages){	zcache_evicted_eph_zpages += zpages;};static inline void inc_zcache_evicted_eph_pageframes(void){	zcache_evicted_eph_pageframes++;}; static inline void inc_zcache_eph_nonactive_puts_ignored(void){	zcache_eph_nonactive_puts_ignored++;};static inline void inc_zcache_pers_nonactive_puts_ignored(void){	zcache_pers_nonactive_puts_ignored++;}; int zcache_debugfs_init(void);#elsestatic inline void inc_zcache_obj_count(void) { };static inline void dec_zcache_obj_count(void) { };static inline void inc_zcache_objnode_count(void) { };static inline void dec_zcache_objnode_count(void) { };static inline void inc_zcache_eph_zbytes(unsigned clen) { };static inline void dec_zcache_eph_zbytes(unsigned zsize) { };static inline void inc_zcache_pers_zbytes(unsigned clen) { };static inline void dec_zcache_pers_zbytes(unsigned zsize) { };static inline void inc_zcache_eph_pageframes(void) { };static inline void dec_zcache_eph_pageframes(void) { };static inline void inc_zcache_pers_pageframes(void) { };static inline void dec_zcache_pers_pageframes(void) { };static inline void inc_zcache_pageframes_alloced(void) { };static inline void inc_zcache_pageframes_freed(void) { };static inline void inc_zcache_eph_zpages(void) { };static inline void dec_zcache_eph_zpages(unsigned zpages) { };static inline void inc_zcache_pers_zpages(void) { };static inline void dec_zcache_pers_zpages(unsigned zpages) { };static inline void inc_zcache_zero_filled_pages(void) { };static inline void dec_zcache_zero_filled_pages(void) { };static inline unsigned long curr_pageframes_count(void){	return 0;};static inline int zcache_debugfs_init(void){	return 0;};static inline void inc_zcache_flush_total(void) { };static inline void inc_zcache_flush_found(void) { };static inline void inc_zcache_flobj_total(void) { };static inline void inc_zcache_flobj_found(void) { };static inline void inc_zcache_failed_eph_puts(void) { };static inline void inc_zcache_failed_pers_puts(void) { };static inline void inc_zcache_failed_getfreepages(void) { };static inline void inc_zcache_failed_alloc(void) { };static inline void inc_zcache_put_to_flush(void) { };static inline void inc_zcache_compress_poor(void) { };static inline void inc_zcache_mean_compress_poor(void) { };static inline void inc_zcache_eph_ate_tail(void) { };static inline void inc_zcache_eph_ate_tail_failed(void) { };static inline void inc_zcache_pers_ate_eph(void) { };static inline void inc_zcache_pers_ate_eph_failed(void) { };static inline void inc_zcache_evicted_eph_zpages(unsigned zpages) { };static inline void inc_zcache_evicted_eph_pageframes(void) { }; static inline void inc_zcache_eph_nonactive_puts_ignored(void) { };static inline void inc_zcache_pers_nonactive_puts_ignored(void) { };#endif