29c52aa230
Mount debugfs filesystem under '/sys/kernel/debug', if it's not mounted. Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Clark Williams <williams@redhat.com> Cc: John Kacur <jkacur@redhat.com> LKML-Reference: <4B387090.7080407@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
25 lines
702 B
C
25 lines
702 B
C
#ifndef __DEBUGFS_H__
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#define __DEBUGFS_H__
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#include <sys/mount.h>
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#ifndef MAX_PATH
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# define MAX_PATH 256
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#endif
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#ifndef STR
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# define _STR(x) #x
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# define STR(x) _STR(x)
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#endif
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extern const char *debugfs_find_mountpoint(void);
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extern int debugfs_valid_mountpoint(const char *debugfs);
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extern int debugfs_valid_entry(const char *path);
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extern char *debugfs_mount(const char *mountpoint);
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extern int debugfs_umount(void);
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extern int debugfs_write(const char *entry, const char *value);
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extern int debugfs_read(const char *entry, char *buffer, size_t size);
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extern void debugfs_force_cleanup(void);
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extern int debugfs_make_path(const char *element, char *buffer, int size);
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#endif /* __DEBUGFS_H__ */
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