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Commit bfc672dc authored by Tao Ma's avatar Tao Ma Committed by Jiri Kosina
Browse files

Documentation/trace/events.txt: Remove obsolete sched_signal_send. 



'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 52ad51e7).

Cc: Li Zefan <lizf@cn.fujitsu.com>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: default avatarTao Ma <boyu.mt@taobao.com>
Signed-off-by: default avatarJiri Kosina <jkosina@suse.cz>
parent ebd1373d

Documentation/trace/events.txt

+4 −4
Original line number Diff line number Diff line
@@ -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
@@ -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