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Commit 68f40969 authored by Steven Rostedt (Red Hat)'s avatar Steven Rostedt (Red Hat) Committed by Steven Rostedt
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ftrace: Always inline ftrace_hash_empty() helper function 



The ftrace_hash_empty() function is a simple test:

	return !hash || !hash->count;

But gcc seems to want to make it a call. As this is in an extreme
hot path of the function tracer, there's no reason it needs to be
a call. I only wrote it to be a helper function anyway, otherwise
it would have been inlined manually.

Force gcc to inline it, as it could have also been a macro.

Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 19eab4a4

kernel/trace/ftrace.c

+1 −1
Original line number Diff line number Diff line
@@ -1105,7 +1105,7 @@ struct ftrace_page { 
static struct ftrace_page	*ftrace_pages_start;

static struct ftrace_page	*ftrace_pages;



static bool ftrace_hash_empty(struct ftrace_hash *hash)

static bool __always_inline ftrace_hash_empty(struct ftrace_hash *hash)

{

	return !hash || !hash->count;

}