Eric Lee / linux-smarc-t335x-v3.2

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Commit 072126f4529196f71a97960248bca54fd4554c2d

Authored by Steven Rostedt
Committed by Steven Rostedt
1 parent 41fb61c2d0
Exists in master and in 4 other branches v3.2_AM335xPSP_04.06.00.11, v3.2_NEWT335xPSP_04.06.00.11, v3.2_SBC_SMARTMEN, v3.2_SMARCT335xPSP_04.06.00.11

ftrace: Update filter when tracing enabled in set_ftrace_filter() 

Currently, if set_ftrace_filter() is called when the ftrace_ops is
active, the function filters will not be updated. They will only be updated
when tracing is disabled and re-enabled.

Update the functions immediately during set_ftrace_filter().

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

Showing 1 changed file with 4 additions and 0 deletions Side-by-side Diff

kernel/trace/ftrace.c
Diff comments   View file @ 072126f
... ... @@ -2869,6 +2869,10 @@
2869 2869  
2870 2870 mutex_lock(&ftrace_lock);
2871 2871 ret = ftrace_hash_move(ops, enable, orig_hash, hash);
  2872 + if (!ret && ops->flags & FTRACE_OPS_FL_ENABLED
  2873 + && ftrace_enabled)
  2874 + ftrace_run_update_code(FTRACE_ENABLE_CALLS);
  2875 +
2872 2876 mutex_unlock(&ftrace_lock);
2873 2877  
2874 2878 mutex_unlock(&ftrace_regex_lock);