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Documentation/trace/events.txt: Remove obsolete sched_signal_send.
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'sched_signal_send' doesn't exist in the kernel now. Replace it
with 'signal_generate' so that the example in events.txt can be
executed successfully.

I also change some /debug to /sys/kernel/debug which is debugfs'
default mount directory now(similar to commit 52ad51e).

Cc: Li Zefan <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Jiri Kosina <[email protected]>
Signed-off-by: Tao Ma <[email protected]>
Signed-off-by: Jiri Kosina <[email protected]>
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taoma-tm authored and Jiri Kosina committed Jan 7, 2011
1 parent ebd1373 commit bfc672d
Showing 1 changed file with 4 additions and 4 deletions.
8 changes: 4 additions & 4 deletions Documentation/trace/events.txt
Original file line number Diff line number Diff line change
Expand Up @@ -125,7 +125,7 @@ is the size of the data item, in bytes.
For example, here's the information displayed for the 'sched_wakeup'
event:

# cat /debug/tracing/events/sched/sched_wakeup/format
# cat /sys/kernel/debug/tracing/events/sched/sched_wakeup/format

name: sched_wakeup
ID: 60
Expand Down Expand Up @@ -201,19 +201,19 @@ to the 'filter' file for the given event.

For example:

# cd /debug/tracing/events/sched/sched_wakeup
# cd /sys/kernel/debug/tracing/events/sched/sched_wakeup
# echo "common_preempt_count > 4" > filter

A slightly more involved example:

# cd /debug/tracing/events/sched/sched_signal_send
# cd /sys/kernel/debug/tracing/events/signal/signal_generate
# echo "((sig >= 10 && sig < 15) || sig == 17) && comm != bash" > filter

If there is an error in the expression, you'll get an 'Invalid
argument' error when setting it, and the erroneous string along with
an error message can be seen by looking at the filter e.g.:

# cd /debug/tracing/events/sched/sched_signal_send
# cd /sys/kernel/debug/tracing/events/signal/signal_generate
# echo "((sig >= 10 && sig < 15) || dsig == 17) && comm != bash" > filter
-bash: echo: write error: Invalid argument
# cat filter
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