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| author |   Steven Rostedt <srostedt@redhat.com> | 2010-09-14 18:58:33 -0400 |
|---|---|---|
| committer |   Steven Rostedt <rostedt@goodmis.org> | 2010-09-14 20:18:07 -0400 |
| commit | b304d0441a4118fadd4c3f16e4dc600c271030b5 (patch) | |
| tree | ed477c965cf6eaf852f69f7dd855c0ea83f8e36d /tools | |
| parent | tracing: Add funcgraph-irq option for function graph tracer. (diff) | |
| download | linux-dev-b304d0441a4118fadd4c3f16e4dc600c271030b5.tar.xz linux-dev-b304d0441a4118fadd4c3f16e4dc600c271030b5.zip | |
tracing: Do not trace in irq when funcgraph-irq option is zero
When the function graph tracer funcgraph-irq option is zero, disable
tracing in IRQs. This makes the option have two effects.
1) When reading the trace file, do not display the functions that
happen in interrupt context (when detected)
2) [*new*] When recording a trace, skip those that are detected
to be in interrupt by the 'in_irq()' function
Note, in_irq() is updated at irq_enter() and irq_exit(). There are
still functions that are recorded by the function graph tracer that
is in interrupt context but outside the irq_enter/exit() routines.
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'tools')
0 files changed, 0 insertions, 0 deletions