tracing: make sched_switch stop/start light weight

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The stopping and starting of a tracer should be light weight and
be able to be called in all contexts. The sched_switch grabbed
mutexes in the start/stop functions. This patch changes it to a
simple variable, on/off.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>

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Steven Rostedt 2009-03-17 19:59:53 -04:00

parent 97e7e4f391

commit 5fec6ddcb4

1 changed files with 5 additions and 4 deletions

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kernel/trace/trace_sched_switch.c

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