You want vm_unmap_aliases(), which also flushes entries in the
per-cpu vmap allocator (and is already exported for other code
that has similar problems).
Ok, I missed that one. I'll update my patch. Thanks.
Cheers,
Ben.
___
Linuxppc-dev mailing
On Wed, Mar 24, 2010 at 1:26 PM, Benjamin Herrenschmidt
b...@kernel.crashing.org wrote:
Some powerpc code needs to ensure that all previous iounmap/vunmap has
really been flushed out of the MMU hash table. Without that, various
hotplug operations may fail when trying to return those pieces to
Some powerpc code needs to ensure that all previous iounmap/vunmap has
really been flushed out of the MMU hash table. Without that, various
hotplug operations may fail when trying to return those pieces to
the hypervisor due to existing active mappings.
This exports purge_vmap_area_lazy() to
On Wed, Mar 24, 2010 at 06:56:31PM +1100, Benjamin Herrenschmidt wrote:
Some powerpc code needs to ensure that all previous iounmap/vunmap has
really been flushed out of the MMU hash table. Without that, various
hotplug operations may fail when trying to return those pieces to
the hypervisor
