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ebf294bf4f
We don't need to have two PATH_MAX char sized arrays holding it, just one in util/debugfs.c will do. Also rename debugfs_path to tracing_events_path, as it is not the path to debugfs, that is debugfs_mountpoint. Both are now accessible. This will allow accessing this code in the perf python binding without having to drag in perf.c and util/parse-events.c. The defaults for these variables are the canonical "/sys/kernel/debug" and "/sys/kernel/debug/tracing/events/", removing the need for simple tools to call debugfs_mount(NULL). Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Link: http://lkml.kernel.org/n/tip-ug9jvtjrsqbluuhqqxpvg30f@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
19 lines
621 B
C
19 lines
621 B
C
#ifndef __DEBUGFS_H__
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#define __DEBUGFS_H__
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const char *debugfs_find_mountpoint(void);
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int debugfs_valid_mountpoint(const char *debugfs);
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int debugfs_valid_entry(const char *path);
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char *debugfs_mount(const char *mountpoint);
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int debugfs_umount(void);
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void debugfs_set_path(const char *mountpoint);
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int debugfs_write(const char *entry, const char *value);
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int debugfs_read(const char *entry, char *buffer, size_t size);
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void debugfs_force_cleanup(void);
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int debugfs_make_path(const char *element, char *buffer, int size);
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extern char debugfs_mountpoint[];
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extern char tracing_events_path[];
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#endif /* __DEBUGFS_H__ */
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