diff options
| author |   Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2014-06-23 16:42:07 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-07-01 07:13:37 -0400 |
| commit | 9096032fbcdcdb80b76f1046346499e20417988e (patch) | |
| tree | f4f0a3653f5c76c472c2ee6b6a03381b30223610 | |
| parent | tracing: Make trace_seq_putmem_hex() more robust (diff) | |
| download | linux-dev-9096032fbcdcdb80b76f1046346499e20417988e.tar.xz linux-dev-9096032fbcdcdb80b76f1046346499e20417988e.zip | |
tracing: Remove trace_seq_reserve()
trace_seq_reserve() has no users in the kernel, it just wastes space.
Remove it.
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
| -rw-r--r-- | include/linux/trace_seq.h | 5 | ||||
| -rw-r--r-- | kernel/trace/trace_seq.c | 30 |
2 files changed, 0 insertions, 35 deletions
diff --git a/include/linux/trace_seq.h b/include/linux/trace_seq.h index 8283762ab7ef..dd85753e1bb0 100644 --- a/include/linux/trace_seq.h +++ b/include/linux/trace_seq.h @@ -43,7 +43,6 @@ extern int trace_seq_putc(struct trace_seq *s, unsigned char c); extern int trace_seq_putmem(struct trace_seq *s, const void *mem, unsigned int len); extern int trace_seq_putmem_hex(struct trace_seq *s, const void *mem, unsigned int len); -extern void *trace_seq_reserve(struct trace_seq *s, unsigned int len); extern int trace_seq_path(struct trace_seq *s, const struct path *path); extern int trace_seq_bitmask(struct trace_seq *s, const unsigned long *maskp, @@ -94,10 +93,6 @@ static inline int trace_seq_putmem_hex(struct trace_seq *s, const void *mem, { return 0; } -static inline void *trace_seq_reserve(struct trace_seq *s, unsigned int len) -{ - return NULL; -} static inline int trace_seq_path(struct trace_seq *s, const struct path *path) { return 0; 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, EXPORT_SYMBOL_GPL(trace_seq_putmem_hex); /** - * trace_seq_reserve - reserve space on the sequence buffer - * @s: trace sequence descriptor - * @len: The amount to reserver. - * - * If for some reason there is a need to save some space on the - * buffer to fill in later, this function is used for that purpose. - * The given length will be reserved and the pointer to that - * location on the buffer is returned, unless there is not enough - * buffer left to hold the given length then NULL is returned. - */ -void *trace_seq_reserve(struct trace_seq *s, unsigned int len) -{ - void *ret; - - if (s->full) - return NULL; - - if (len > TRACE_SEQ_BUF_LEFT(s)) { - s->full = 1; - return NULL; - } - - ret = s->buffer + s->len; - s->len += len; - - return ret; -} -EXPORT_SYMBOL_GPL(trace_seq_reserve); - -/** * trace_seq_path - copy a path into the sequence buffer * @s: trace sequence descriptor * @path: path to write into the sequence buffer. |