| commit | 92205c2343527a863d660360599a4bf8cede77b0 | [log] [tgz] |
|---|---|---|
| author | Steven Rostedt <rostedt@goodmis.org> | Mon May 12 21:20:55 2008 +0200 |
| committer | Thomas Gleixner <tglx@linutronix.de> | Fri May 23 21:14:11 2008 +0200 |
| tree | c85cf8495cd2eb52a99062e3505cd81851cd3444 | |
| parent | c5f888cae49dfe3e86d9d1e0dab2b63ceb057be3 [diff] |
ftrace: user raw_spin_lock in tracing Lock debugging enabled cause huge performance problems for tracing. Having the lock verification happening for every function that is called because mcount calls spin_lock can cripple the system. This patch converts the spin_locks used by ftrace into raw_spin_locks. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de>