Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
35 lines
992 B
C
35 lines
992 B
C
// SPDX-License-Identifier: GPL-2.0
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#ifndef __TRACE_STAT_H
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#define __TRACE_STAT_H
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#include <linux/seq_file.h>
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/*
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* If you want to provide a stat file (one-shot statistics), fill
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* an iterator with stat_start/stat_next and a stat_show callbacks.
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* The others callbacks are optional.
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*/
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struct tracer_stat {
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/* The name of your stat file */
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const char *name;
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/* Iteration over statistic entries */
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void *(*stat_start)(struct tracer_stat *trace);
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void *(*stat_next)(void *prev, int idx);
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/* Compare two entries for stats sorting */
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cmp_func_t stat_cmp;
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/* Print a stat entry */
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int (*stat_show)(struct seq_file *s, void *p);
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/* Release an entry */
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void (*stat_release)(void *stat);
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/* Print the headers of your stat entries */
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int (*stat_headers)(struct seq_file *s);
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};
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/*
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* Destroy or create a stat file
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*/
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extern int register_stat_tracer(struct tracer_stat *trace);
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extern void unregister_stat_tracer(struct tracer_stat *trace);
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#endif /* __TRACE_STAT_H */
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