| commit | 0b6e4d56bf71866a2b58daa8323cf747988ce7e4 | |
| author | Frederic Weisbecker <fweisbec@gmail.com> | |
| Tue, 28 Oct 2008 19:17:38 +0000 (28 20:17 +0100) | ||
| committer | Ingo Molnar <mingo@elte.hu> | |
| Tue, 28 Oct 2008 18:15:58 +0000 (28 19:15 +0100) | ||
| tree | abda53ec941c887283d496abf5d364ba80f72d5e | treesnapshot (tar.gz zip) |
| parent | e946217e4fdaa67681bbabfa8e6b18641921f750 | commitdiff |
ftrace: perform an initialization for ftrace to enable it
Impact: corrects a bug which made the non-dyn function tracer not functional
With latest git, the non-dynamic function tracer didn't get any trace.
The problem was the fact that ftrace_enabled wasn't initialized to 1
because ftrace hasn't any init function when DYNAMIC_FTRACE is disabled.
So when a tracer tries to register an ftrace_ops struct,
__register_ftrace_function failed to set the hook.
This patch corrects it by setting an init function to initialize
ftrace during the boot.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Impact: corrects a bug which made the non-dyn function tracer not functional
With latest git, the non-dynamic function tracer didn't get any trace.
The problem was the fact that ftrace_enabled wasn't initialized to 1
because ftrace hasn't any init function when DYNAMIC_FTRACE is disabled.
So when a tracer tries to register an ftrace_ops struct,
__register_ftrace_function failed to set the hook.
This patch corrects it by setting an init function to initialize
ftrace during the boot.
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| kernel/trace/ftrace.c | diffblobblamehistory |