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| author | Steven Rostedt (Red Hat) <rostedt@goodmis.org> | 2013-05-09 15:00:07 -0400 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2013-05-09 20:14:49 -0400 |
| commit | da511bf33e47ea1f33f4b672f7da166d2a1b8a91 (patch) | |
| tree | 3e514023cb9fd7f91c54e0b952ee5c47b76b945a /kernel/trace/trace_events.c | |
| parent | 1cf4c0732db3cd3c49cadbc60ff6bda08604e6fa (diff) | |
| download | linux-da511bf33e47ea1f33f4b672f7da166d2a1b8a91.tar.gz linux-da511bf33e47ea1f33f4b672f7da166d2a1b8a91.tar.bz2 linux-da511bf33e47ea1f33f4b672f7da166d2a1b8a91.zip | |
tracing: Add helper function trace_create_new_event() to remove duplicate code
Both __trace_add_new_event() and __trace_early_add_new_event() do
basically the same thing, except that __trace_add_new_event() does
a little more.
Instead of having duplicate code between the two functions, add
a helper function trace_create_new_event() that both can use.
This will help against having bugs fixed in one function but not
the other.
Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'kernel/trace/trace_events.c')
| -rw-r--r-- | kernel/trace/trace_events.c | 32 |
1 files changed, 20 insertions, 12 deletions
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c index 8be1224046f8..7a0cf68027cc 100644 --- a/kernel/trace/trace_events.c +++ b/kernel/trace/trace_events.c @@ -1529,6 +1529,24 @@ __register_event(struct ftrace_event_call *call, struct module *mod) return 0; } +static struct ftrace_event_file * +trace_create_new_event(struct ftrace_event_call *call, + struct trace_array *tr) +{ + struct ftrace_event_file *file; + + file = kmem_cache_alloc(file_cachep, GFP_TRACE); + if (!file) + return NULL; + + file->event_call = call; + file->tr = tr; + atomic_set(&file->sm_ref, 0); + list_add(&file->list, &tr->events); + + return file; +} + /* Add an event to a trace directory */ static int __trace_add_new_event(struct ftrace_event_call *call, @@ -1540,15 +1558,10 @@ __trace_add_new_event(struct ftrace_event_call *call, { struct ftrace_event_file *file; - file = kmem_cache_alloc(file_cachep, GFP_TRACE); + file = trace_create_new_event(call, tr); if (!file) return -ENOMEM; - file->event_call = call; - file->tr = tr; - atomic_set(&file->sm_ref, 0); - list_add(&file->list, &tr->events); - return event_create_dir(tr->event_dir, file, id, enable, filter, format); } @@ -1563,15 +1576,10 @@ __trace_early_add_new_event(struct ftrace_event_call *call, { struct ftrace_event_file *file; - file = kmem_cache_alloc(file_cachep, GFP_TRACE); + file = trace_create_new_event(call, tr); if (!file) return -ENOMEM; - file->event_call = call; - file->tr = tr; - atomic_set(&file->sm_ref, 0); - list_add(&file->list, &tr->events); - return 0; } |