diff options
Diffstat (limited to 'drivers/staging/zcache/debug.h')
| -rw-r--r-- | drivers/staging/zcache/debug.h | 305 |
1 files changed, 305 insertions, 0 deletions
diff --git a/drivers/staging/zcache/debug.h b/drivers/staging/zcache/debug.h new file mode 100644 index 00000000000..8088d28f2dc --- /dev/null +++ b/drivers/staging/zcache/debug.h @@ -0,0 +1,305 @@ +#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_WRITEBACK +extern 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); +#else +static 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 |