diff options
Diffstat (limited to 'fs/nfsd/stats.h')
-rw-r--r-- | fs/nfsd/stats.h | 96 |
1 files changed, 75 insertions, 21 deletions
diff --git a/fs/nfsd/stats.h b/fs/nfsd/stats.h index b23fdac69820..51ecda852e23 100644 --- a/fs/nfsd/stats.h +++ b/fs/nfsd/stats.h @@ -8,37 +8,91 @@ #define _NFSD_STATS_H #include <uapi/linux/nfsd/stats.h> +#include <linux/percpu_counter.h> -struct nfsd_stats { - unsigned int rchits; /* repcache hits */ - unsigned int rcmisses; /* repcache hits */ - unsigned int rcnocache; /* uncached reqs */ - unsigned int fh_stale; /* FH stale error */ - unsigned int fh_lookup; /* dentry cached */ - unsigned int fh_anon; /* anon file dentry returned */ - unsigned int fh_nocache_dir; /* filehandle not found in dcache */ - unsigned int fh_nocache_nondir; /* filehandle not found in dcache */ - unsigned int io_read; /* bytes returned to read requests */ - unsigned int io_write; /* bytes passed in write requests */ - unsigned int th_cnt; /* number of available threads */ - unsigned int th_usage[10]; /* number of ticks during which n perdeciles - * of available threads were in use */ - unsigned int th_fullcnt; /* number of times last free thread was used */ - unsigned int ra_size; /* size of ra cache */ - unsigned int ra_depth[11]; /* number of times ra entry was found that deep - * in the cache (10percentiles). [10] = not found */ +enum { + NFSD_STATS_RC_HITS, /* repcache hits */ + NFSD_STATS_RC_MISSES, /* repcache misses */ + NFSD_STATS_RC_NOCACHE, /* uncached reqs */ + NFSD_STATS_FH_STALE, /* FH stale error */ + NFSD_STATS_IO_READ, /* bytes returned to read requests */ + NFSD_STATS_IO_WRITE, /* bytes passed in write requests */ #ifdef CONFIG_NFSD_V4 - unsigned int nfs4_opcount[LAST_NFS4_OP + 1]; /* count of individual nfsv4 operations */ + NFSD_STATS_FIRST_NFS4_OP, /* count of individual nfsv4 operations */ + NFSD_STATS_LAST_NFS4_OP = NFSD_STATS_FIRST_NFS4_OP + LAST_NFS4_OP, +#define NFSD_STATS_NFS4_OP(op) (NFSD_STATS_FIRST_NFS4_OP + (op)) #endif + NFSD_STATS_COUNTERS_NUM +}; + +struct nfsd_stats { + struct percpu_counter counter[NFSD_STATS_COUNTERS_NUM]; + /* Protected by nfsd_mutex */ + unsigned int th_cnt; /* number of available threads */ }; extern struct nfsd_stats nfsdstats; + extern struct svc_stat nfsd_svcstats; -void nfsd_stat_init(void); -void nfsd_stat_shutdown(void); +int nfsd_percpu_counters_init(struct percpu_counter counters[], int num); +void nfsd_percpu_counters_reset(struct percpu_counter counters[], int num); +void nfsd_percpu_counters_destroy(struct percpu_counter counters[], int num); +int nfsd_stat_init(void); +void nfsd_stat_shutdown(void); + +static inline void nfsd_stats_rc_hits_inc(void) +{ + percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_HITS]); +} + +static inline void nfsd_stats_rc_misses_inc(void) +{ + percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_MISSES]); +} + +static inline void nfsd_stats_rc_nocache_inc(void) +{ + percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_RC_NOCACHE]); +} + +static inline void nfsd_stats_fh_stale_inc(struct svc_export *exp) +{ + percpu_counter_inc(&nfsdstats.counter[NFSD_STATS_FH_STALE]); + if (exp) + percpu_counter_inc(&exp->ex_stats.counter[EXP_STATS_FH_STALE]); +} + +static inline void nfsd_stats_io_read_add(struct svc_export *exp, s64 amount) +{ + percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_READ], amount); + if (exp) + percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_READ], amount); +} + +static inline void nfsd_stats_io_write_add(struct svc_export *exp, s64 amount) +{ + percpu_counter_add(&nfsdstats.counter[NFSD_STATS_IO_WRITE], amount); + if (exp) + percpu_counter_add(&exp->ex_stats.counter[EXP_STATS_IO_WRITE], amount); +} + +static inline void nfsd_stats_payload_misses_inc(struct nfsd_net *nn) +{ + percpu_counter_inc(&nn->counter[NFSD_NET_PAYLOAD_MISSES]); +} + +static inline void nfsd_stats_drc_mem_usage_add(struct nfsd_net *nn, s64 amount) +{ + percpu_counter_add(&nn->counter[NFSD_NET_DRC_MEM_USAGE], amount); +} + +static inline void nfsd_stats_drc_mem_usage_sub(struct nfsd_net *nn, s64 amount) +{ + percpu_counter_sub(&nn->counter[NFSD_NET_DRC_MEM_USAGE], amount); +} #endif /* _NFSD_STATS_H */ |