On Fri, Aug 21, 2020 at 07:42:55PM +0200, Rafael J. Wysocki wrote: > From: Rafael J. Wysocki <[email protected]> > > After commit 1757659d022b ("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: 1757659d022b ("ACPI: OSL: Implement deferred unmapping of ACPI memory") > Reported-by: Kenneth R. Crudup <[email protected]> > Signed-off-by: Rafael J. Wysocki <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
