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 9 struct 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 18 struct xchk_stats; 19 20 int __init xchk_global_stats_setup(struct dentry *parent); 21 void xchk_global_stats_teardown(void); 22 23 int xchk_mount_stats_alloc(struct xfs_mount *mp); 24 void xchk_mount_stats_free(struct xfs_mount *mp); 25 26 void xchk_stats_register(struct xchk_stats *cs, struct dentry *parent); 27 void xchk_stats_unregister(struct xchk_stats *cs); 28 29 void xchk_stats_merge(struct xfs_mount *mp, const struct xfs_scrub_metadata *sm, 30 const struct xchk_stats_run *run); 31 32 static inline u64 xchk_stats_now(void) { return ktime_get_ns(); } 33 static 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