1// SPDX-License-Identifier: GPL-2.0-or-later 2/* 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_STATS 18struct 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 at 39 * least one nanosecond so that our stats don't report instantaneous 40 * runtimes. 41 */ 42 if (now == since) 43 return 1; 44 45 return now - since; 46} 47#else 48# 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