// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright ( C ) 2023 Oracle . All Rights Reserved .
* Author : Darrick J . Wong < djwong @ kernel . org >
*/
#ifndef __XFS_SCRUB_STATS_H__
#define __XFS_SCRUB_STATS_H__
struct xchk_stats_run {
u64 scrub_ns;
u64 repair_ns;
unsigned int retries;
bool repair_attempted;
bool repair_succeeded;
};
#ifdef CONFIG_XFS_ONLINE_SCRUB_STATS
struct xchk_stats;
int __init xchk_global_stats_setup(struct dentry *parent);
void xchk_global_stats_teardown(void );
int xchk_mount_stats_alloc(struct xfs_mount *mp);
void xchk_mount_stats_free(struct xfs_mount *mp);
void xchk_stats_register(struct xchk_stats *cs, struct dentry *parent);
void xchk_stats_unregister(struct xchk_stats *cs);
void xchk_stats_merge(struct xfs_mount *mp, const struct xfs_scrub_metadata *sm,
const struct xchk_stats_run *run);
static inline u64 xchk_stats_now(void ) { return ktime_get_ns(); }
static inline u64 xchk_stats_elapsed_ns(u64 since)
{
u64 now = xchk_stats_now();
/*
* If the system doesn ' t have a high enough resolution clock , charge at
* least one nanosecond so that our stats don ' t report instantaneous
* runtimes .
*/
if (now == since)
return 1 ;
return now - since;
}
#else
# define xchk_global_stats_setup(parent) (0 )
# define xchk_global_stats_teardown() ((void )0 )
# define xchk_mount_stats_alloc(mp) (0 )
# define xchk_mount_stats_free(mp) ((void )0 )
# define xchk_stats_register(cs, parent) ((void )0 )
# define xchk_stats_unregister(cs) ((void )0 )
# define xchk_stats_now() (0 )
# define xchk_stats_elapsed_ns(x) (0 * (x))
# define xchk_stats_merge(mp, sm, run) ((void )0 )
#endif /* CONFIG_XFS_ONLINE_SCRUB_STATS */
#endif /* __XFS_SCRUB_STATS_H__ */
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