[PATCH 0/3] percpu_ida: support to export allocation/free information

[Ming Lei]

Hi,

These patches support to export percpu_ida allocation/free information
via sysfs, so that percpu_ida performance can be monitored, and
at least two use cases:

- some parameters(such as percpu_max_size) from its users are very
sensitive to performance

- the data is helpful for verifying patches which try to improve
percpu_ida


Thanks,
--
Ming Lei

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