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2009-11-08perf tools: Add debugfs utility routines for perfClark Williams
Add routines to locate the debugfs mount point and to manage the mounting and unmounting of the debugfs. Signed-off-by: Clark Williams <williams@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> LKML-Reference: <20091101155621.2b3503ee@torg> Signed-off-by: Ingo Molnar <mingo@elte.hu>