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Track the usage, outcomes, and run times of the online fsck code, and report these values via debugfs. The columns in the file are: * scrubber name * number of scrub invocations * clean objects found * corruptions found * optimizations found * cross referencing failures * inconsistencies found during cross referencing * incomplete scrubs * warnings * number of time scrub had to retry * cumulative amount of time spent scrubbing (microseconds) * number of repair inovcations * successfully repaired objects * cumuluative amount of time spent repairing (microseconds) Signed-off-by: Darrick J. Wong <djwong@kernel.org> Reviewed-by: Dave Chinner <dchinner@redhat.com>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (C) 2023 Oracle. All Rights Reserved.
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* Author: Darrick J. Wong <djwong@kernel.org>
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*/
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#ifndef __XFS_SCRUB_STATS_H__
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#define __XFS_SCRUB_STATS_H__
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struct xchk_stats_run {
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u64 scrub_ns;
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u64 repair_ns;
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unsigned int retries;
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bool repair_attempted;
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bool repair_succeeded;
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};
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#ifdef CONFIG_XFS_ONLINE_SCRUB_STATS
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struct xchk_stats;
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int __init xchk_global_stats_setup(struct dentry *parent);
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void xchk_global_stats_teardown(void);
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int xchk_mount_stats_alloc(struct xfs_mount *mp);
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void xchk_mount_stats_free(struct xfs_mount *mp);
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void xchk_stats_register(struct xchk_stats *cs, struct dentry *parent);
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void xchk_stats_unregister(struct xchk_stats *cs);
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void xchk_stats_merge(struct xfs_mount *mp, const struct xfs_scrub_metadata *sm,
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const struct xchk_stats_run *run);
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static inline u64 xchk_stats_now(void) { return ktime_get_ns(); }
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static inline u64 xchk_stats_elapsed_ns(u64 since)
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{
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u64 now = xchk_stats_now();
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/*
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* If the system doesn't have a high enough resolution clock, charge at
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* least one nanosecond so that our stats don't report instantaneous
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* runtimes.
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*/
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if (now == since)
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return 1;
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return now - since;
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}
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#else
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# define xchk_global_stats_setup(parent) (0)
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# define xchk_global_stats_teardown() ((void)0)
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# define xchk_mount_stats_alloc(mp) (0)
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# define xchk_mount_stats_free(mp) ((void)0)
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# define xchk_stats_register(cs, parent) ((void)0)
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# define xchk_stats_unregister(cs) ((void)0)
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# define xchk_stats_now() (0)
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# define xchk_stats_elapsed_ns(x) (0 * (x))
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# define xchk_stats_merge(mp, sm, run) ((void)0)
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#endif /* CONFIG_XFS_ONLINE_SCRUB_STATS */
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#endif /* __XFS_SCRUB_STATS_H__ */
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