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1// SPDX-License-Identifier: GPL-2.0-or-later2/*3 * Copyright (C) 2023 Oracle. All Rights Reserved.4 * Author: Darrick J. Wong <djwong@kernel.org>5 */6#ifndef __XFS_SCRUB_STATS_H__7#define __XFS_SCRUB_STATS_H__8 9struct xchk_stats_run {10 u64 scrub_ns;11 u64 repair_ns;12 unsigned int retries;13 bool repair_attempted;14 bool repair_succeeded;15};16 17#ifdef CONFIG_XFS_ONLINE_SCRUB_STATS18struct xchk_stats;19 20int __init xchk_global_stats_setup(struct dentry *parent);21void xchk_global_stats_teardown(void);22 23int xchk_mount_stats_alloc(struct xfs_mount *mp);24void xchk_mount_stats_free(struct xfs_mount *mp);25 26void xchk_stats_register(struct xchk_stats *cs, struct dentry *parent);27void xchk_stats_unregister(struct xchk_stats *cs);28 29void xchk_stats_merge(struct xfs_mount *mp, const struct xfs_scrub_metadata *sm,30 const struct xchk_stats_run *run);31 32static inline u64 xchk_stats_now(void) { return ktime_get_ns(); }33static inline u64 xchk_stats_elapsed_ns(u64 since)34{35 u64 now = xchk_stats_now();36 37 /*38 * If the system doesn't have a high enough resolution clock, charge at39 * least one nanosecond so that our stats don't report instantaneous40 * runtimes.41 */42 if (now == since)43 return 1;44 45 return now - since;46}47#else48# define xchk_global_stats_setup(parent) (0)49# define xchk_global_stats_teardown() ((void)0)50# define xchk_mount_stats_alloc(mp) (0)51# define xchk_mount_stats_free(mp) ((void)0)52# define xchk_stats_register(cs, parent) ((void)0)53# define xchk_stats_unregister(cs) ((void)0)54# define xchk_stats_now() (0)55# define xchk_stats_elapsed_ns(x) (0 * (x))56# define xchk_stats_merge(mp, sm, run) ((void)0)57#endif /* CONFIG_XFS_ONLINE_SCRUB_STATS */58 59#endif /* __XFS_SCRUB_STATS_H__ */60