tracing: Change tracing_buffers_fops to rely on tracing_get_cpu()

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

Change debugfs_create_file("trace_pipe_raw", data) caller to pass
"data = tr", tracing_buffers_open() can use tracing_get_cpu().

Change debugfs_create_file("snapshot_raw_fops", data) caller too,
this file uses tracing_buffers_open/release.

Link: http://lkml.kernel.org/r/20130723152600.GA23720@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 17:26:00 +02:00 • committed by Steven Rostedt

parent 15544209cb

commit 46ef2be0d1

1 changed files with 4 additions and 5 deletions

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kernel/trace/trace.c

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