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authorSteven Rostedt <rostedt@goodmis.org>2008-05-12 21:20:55 +0200
committerThomas Gleixner <tglx@linutronix.de>2008-05-23 21:14:11 +0200
commit92205c2343527a863d660360599a4bf8cede77b0 (patch)
treec85cf8495cd2eb52a99062e3505cd81851cd3444 /lib/Makefile
parentc5f888cae49dfe3e86d9d1e0dab2b63ceb057be3 (diff)
downloadop-kernel-dev-92205c2343527a863d660360599a4bf8cede77b0.zip
op-kernel-dev-92205c2343527a863d660360599a4bf8cede77b0.tar.gz
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>
Diffstat (limited to 'lib/Makefile')
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