xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tracing: Set up infrastructure to allow tracers for instances

Browse Source 
Currently the tracers (function, function_graph, irqsoff, etc) can only
be used by the top level tracing directory (not for instances).

This sets up the infrastructure to allow instances to be able to
run a separate tracer apart from the what the top level tracing is
doing.

As tracers need to adapt for being used by instances, the tracers
must flag if they can be used by instances or not. Currently only the
'nop' tracer can be used by all instances.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat)
2013-11-06 22:42:48 -05:00
committed by Steven Rostedt
parent bf6065b5c7
commit 607e2ea167
3 changed files with 60 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

3
kernel/trace/trace_nop.c
View File

@@ -96,6 +96,7 @@ struct tracer nop_trace __read_mostly =
.selftest = trace_selftest_startup_nop,
#endif
.flags = &nop_flags,
.set_flag = nop_set_flag
.set_flag = nop_set_flag,
.allow_instances = true,
};