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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _FS_CEPH_MDS_METRIC_H
#define _FS_CEPH_MDS_METRIC_H
#include <linux/types.h>
#include <linux/percpu_counter.h>
#include <linux/ktime.h>
/* This is the global metrics */
struct ceph_client_metric {
atomic64_t total_dentries;
struct percpu_counter d_lease_hit;
struct percpu_counter d_lease_mis;
struct percpu_counter i_caps_hit;
struct percpu_counter i_caps_mis;
spinlock_t read_latency_lock;
u64 total_reads;
ktime_t read_latency_sum;
ktime_t read_latency_sq_sum;
ktime_t read_latency_min;
ktime_t read_latency_max;
spinlock_t write_latency_lock;
u64 total_writes;
ktime_t write_latency_sum;
ktime_t write_latency_sq_sum;
ktime_t write_latency_min;
ktime_t write_latency_max;
};
extern int ceph_metric_init(struct ceph_client_metric *m);
extern void ceph_metric_destroy(struct ceph_client_metric *m);
static inline void ceph_update_cap_hit(struct ceph_client_metric *m)
{
percpu_counter_inc(&m->i_caps_hit);
}
static inline void ceph_update_cap_mis(struct ceph_client_metric *m)
{
percpu_counter_inc(&m->i_caps_mis);
}
extern void ceph_update_read_latency(struct ceph_client_metric *m,
ktime_t r_start, ktime_t r_end,
int rc);
extern void ceph_update_write_latency(struct ceph_client_metric *m,
ktime_t r_start, ktime_t r_end,
int rc);
#endif /* _FS_CEPH_MDS_METRIC_H */
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