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151a0eb6c8
The CPU-measurement counter facility does not support sampling events and returns -EINVAL in that case. This return code lets the perf tool fail. To fall back to software sampling events, return -ENOENT instead. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>