commit 15544209cb0b5312e5220a9337a1fe61d1a1f2d9
author Oleg Nesterov <oleg@redhat.com> Tue Jul 23 17:25:57 2013 +0200
committer Steven Rostedt <rostedt@rostedt.homelinux.com> Wed Jul 24 11:22:51 2013 -0400
tree ec12c5587cd71821b5edff4f67dc0439438cb538
parent 649e9c70da6bfbeb563193a35d3424a5aa7c0d38

tracing: Change tracing_pipe_fops() to rely on tracing_get_cpu()

tracing_open_pipe() is racy, the memory inode->i_private points to
can be already freed.

Change debugfs_create_file("trace_pipe", data) callers to to pass
"data = tr", tracing_open_pipe() can use tracing_get_cpu().

Link: http://lkml.kernel.org/r/20130723152557.GA23717@redhat.com

Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>