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authorSteven Rostedt <srostedt@redhat.com>2012-05-10 15:55:43 -0400
committerSteven Rostedt <rostedt@goodmis.org>2012-05-10 15:55:43 -0400
commit9b63776fa3ca96c4ecda76f6fa947b7b0add66ac (patch)
treeac90f2faceecab78d7d547c33daef31d4a9e2943 /fs/xattr_acl.c
parent20d23aaa31da295378abff4272716e3dfc72baf0 (diff)
tracing: Do not enable function event with enable
With the adding of function tracing event to perf, it caused a side effect that produces the following warning when enabling all events in ftrace: # echo 1 > /sys/kernel/debug/tracing/events/enable [console] event trace: Could not enable event function This is because when enabling all events via the debugfs system it ignores events that do not have a ->reg() function assigned. This was to skip over the ftrace internal events (as they are not TRACE_EVENTs). But as the ftrace function event now has a ->reg() function attached to it for use with perf, it is no longer ignored. Worse yet, this ->reg() function is being called when it should not be. It returns an error and causes the above warning to be printed. By adding a new event_call flag (TRACE_EVENT_FL_IGNORE_ENABLE) and have all ftrace internel event structures have it set, setting the events/enable will no longe try to incorrectly enable the function event and does not warn. Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Diffstat (limited to 'fs/xattr_acl.c')
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