tracing: Change tracing_stats_fops to rely on tracing_get_cpu()

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

1. Change one of its users, tracing_stats_fops, to use
   tracing_*_generic_tr() instead.

2. Change trace_create_cpu_file("stats", data) to pass "data = tr".

3. Change tracing_stats_read() to use tracing_get_cpu().

Link: http://lkml.kernel.org/r/20130723152603.GA23727@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 17:26:03 +02:00 • committed by Steven Rostedt

parent 46ef2be0d1

commit 4d3435b8a4

1 changed files with 6 additions and 7 deletions

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kernel/trace/trace.c

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