tree 6ba1483c9f6bbbba061c5de87ddab2263d0b06a4
parent 34ef61b1fa6172e994e441f1f0241dc53a75bd5f
author Steven Rostedt (Red Hat) <srostedt@redhat.com> 1362263834 -0500
committer Steven Rostedt <rostedt@goodmis.org> 1363322093 -0400

tracing: Fix trace events build without modules

The new multi-buffers added a descriptor that kept track of module
events, and the directories they use, with struct ftace_module_file_ops.
This is used to add a ref count to keep modules from unloading while
their files are being accessed.

As the descriptor is only needed when CONFIG_MODULES is enabled, it
is only declared when the config is enabled. But that struct is
dereferenced in a few areas outside the #ifdef CONFIG_MODULES.

By adding some helper routines and moving code around a little,
events can be compiled again without modules.

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>