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git.proxmox.com Git - mirror_ubuntu-zesty-kernel.git/blob - include/linux/trace_seq.h
1 #ifndef _LINUX_TRACE_SEQ_H
2 #define _LINUX_TRACE_SEQ_H
9 * Trace sequences are used to allow a function to call several other functions
10 * to create a string of data to use (up to a max of PAGE_SIZE).
14 unsigned char buffer
[PAGE_SIZE
];
21 trace_seq_init(struct trace_seq
*s
)
29 * Currently only defined when tracing is enabled.
33 int trace_seq_printf(struct trace_seq
*s
, const char *fmt
, ...);
35 int trace_seq_vprintf(struct trace_seq
*s
, const char *fmt
, va_list args
);
37 trace_seq_bprintf(struct trace_seq
*s
, const char *fmt
, const u32
*binary
);
38 extern int trace_print_seq(struct seq_file
*m
, struct trace_seq
*s
);
39 extern ssize_t
trace_seq_to_user(struct trace_seq
*s
, char __user
*ubuf
,
41 extern int trace_seq_puts(struct trace_seq
*s
, const char *str
);
42 extern int trace_seq_putc(struct trace_seq
*s
, unsigned char c
);
43 extern int trace_seq_putmem(struct trace_seq
*s
, const void *mem
, size_t len
);
44 extern int trace_seq_putmem_hex(struct trace_seq
*s
, const void *mem
,
46 extern void *trace_seq_reserve(struct trace_seq
*s
, size_t len
);
47 extern int trace_seq_path(struct trace_seq
*s
, const struct path
*path
);
49 extern int trace_seq_bitmask(struct trace_seq
*s
, const unsigned long *maskp
,
52 #else /* CONFIG_TRACING */
53 static inline int trace_seq_printf(struct trace_seq
*s
, const char *fmt
, ...)
58 trace_seq_bprintf(struct trace_seq
*s
, const char *fmt
, const u32
*binary
)
64 trace_seq_bitmask(struct trace_seq
*s
, const unsigned long *maskp
,
70 static inline int trace_print_seq(struct seq_file
*m
, struct trace_seq
*s
)
74 static inline ssize_t
trace_seq_to_user(struct trace_seq
*s
, char __user
*ubuf
,
79 static inline int trace_seq_puts(struct trace_seq
*s
, const char *str
)
83 static inline int trace_seq_putc(struct trace_seq
*s
, unsigned char c
)
88 trace_seq_putmem(struct trace_seq
*s
, const void *mem
, size_t len
)
92 static inline int trace_seq_putmem_hex(struct trace_seq
*s
, const void *mem
,
97 static inline void *trace_seq_reserve(struct trace_seq
*s
, size_t len
)
101 static inline int trace_seq_path(struct trace_seq
*s
, const struct path
*path
)
105 #endif /* CONFIG_TRACING */
107 #endif /* _LINUX_TRACE_SEQ_H */