]> git.karo-electronics.de Git - karo-tx-linux.git/commit
uprobes/tracing: Introduce is_trace_uprobe_enabled()
authorOleg Nesterov <oleg@redhat.com>
Thu, 31 Jan 2013 18:15:30 +0000 (19:15 +0100)
committerOleg Nesterov <oleg@redhat.com>
Fri, 8 Feb 2013 17:24:30 +0000 (18:24 +0100)
commitb64b007797c1e6d6b745c93c296ba1d5f4d72d86
treeb2cfd860f68b421484d7992f354d62b8e6b7f1ce
parent7e4e28c53963e6cfa94d8109bb8f5233c5659048
uprobes/tracing: Introduce is_trace_uprobe_enabled()

probe_event_enable/disable() check tu->consumer != NULL to avoid the
wrong uprobe_register/unregister().

We are going to kill this pointer and "struct uprobe_trace_consumer",
so we add the new helper, is_trace_uprobe_enabled(), which can rely
on TP_FLAG_TRACE/TP_FLAG_PROFILE instead.

Note: the current logic doesn't look optimal, it is not clear why
TP_FLAG_TRACE/TP_FLAG_PROFILE are mutually exclusive, we will probably
change this later.

Also kill the unused TP_FLAG_UPROBE.

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
kernel/trace/trace_probe.h
kernel/trace/trace_uprobe.c