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Rafael J. Wysocki authored
After commit 1757659d ("ACPI: OSL: Implement deferred unmapping of ACPI memory") in some cases acpi_release_memory() may return before the target memory mappings actually go away, because they are released asynchronously now. Prevent it from returning prematurely by making it wait for the next RCU grace period to elapse, for all of the RCU callbacks to complete and for all of the scheduled work items to be flushed before returning. Fixes: 1757659d ("ACPI: OSL: Implement deferred unmapping of ACPI memory") Reported-by:
Kenneth R. Crudup <kenny@panix.com> Tested-by:
Kenneth R. Crudup <kenny@panix.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by:
Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by:
Mika Westerberg <mika.westerberg@linux.intel.com>
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