watchdog: Use local_clock for get_timestamp()
The get_timestamp() function is always called with current cpu, thus using local_clock() would be more appropriate and it makes the code shorter and cleaner IMHO. Signed-off-by: NNamhyung Kim <namhyung@kernel.org> Acked-by: NDon Zickus <dzickus@redhat.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1356576585-28782-1-git-send-email-namhyung@kernel.orgSigned-off-by: NIngo Molnar <mingo@kernel.org>
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