diff options
Diffstat (limited to 'kernel/trace/trace_seq.c')
-rw-r--r-- | kernel/trace/trace_seq.c | 30 |
1 files changed, 0 insertions, 30 deletions
diff --git a/kernel/trace/trace_seq.c b/kernel/trace/trace_seq.c index 88c0f80f0a1f..1f24ed99dca2 100644 --- a/kernel/trace/trace_seq.c +++ b/kernel/trace/trace_seq.c | |||
@@ -342,36 +342,6 @@ int trace_seq_putmem_hex(struct trace_seq *s, const void *mem, | |||
342 | EXPORT_SYMBOL_GPL(trace_seq_putmem_hex); | 342 | EXPORT_SYMBOL_GPL(trace_seq_putmem_hex); |
343 | 343 | ||
344 | /** | 344 | /** |
345 | * trace_seq_reserve - reserve space on the sequence buffer | ||
346 | * @s: trace sequence descriptor | ||
347 | * @len: The amount to reserver. | ||
348 | * | ||
349 | * If for some reason there is a need to save some space on the | ||
350 | * buffer to fill in later, this function is used for that purpose. | ||
351 | * The given length will be reserved and the pointer to that | ||
352 | * location on the buffer is returned, unless there is not enough | ||
353 | * buffer left to hold the given length then NULL is returned. | ||
354 | */ | ||
355 | void *trace_seq_reserve(struct trace_seq *s, unsigned int len) | ||
356 | { | ||
357 | void *ret; | ||
358 | |||
359 | if (s->full) | ||
360 | return NULL; | ||
361 | |||
362 | if (len > TRACE_SEQ_BUF_LEFT(s)) { | ||
363 | s->full = 1; | ||
364 | return NULL; | ||
365 | } | ||
366 | |||
367 | ret = s->buffer + s->len; | ||
368 | s->len += len; | ||
369 | |||
370 | return ret; | ||
371 | } | ||
372 | EXPORT_SYMBOL_GPL(trace_seq_reserve); | ||
373 | |||
374 | /** | ||
375 | * trace_seq_path - copy a path into the sequence buffer | 345 | * trace_seq_path - copy a path into the sequence buffer |
376 | * @s: trace sequence descriptor | 346 | * @s: trace sequence descriptor |
377 | * @path: path to write into the sequence buffer. | 347 | * @path: path to write into the sequence buffer. |