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

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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>

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Oleg Nesterov 2013-07-23 17:25:57 +02:00 • committed by Steven Rostedt

parent 649e9c70da

commit 15544209cb

1 changed files with 7 additions and 9 deletions

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kernel/trace/trace.c

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