On Tue, May 12, 2015 at 11:38:32AM +0530, Aneesh Kumar K.V wrote: > Architectures like ppc64 [1] need to do special things while clearing > pmd before a collapse. For them this operation is largely different > from a normal hugepage pte clear. Hence add a separate function > to clear pmd before collapse. After this patch pmdp_* functions > operate only on hugepage pte, and not on regular pmd_t values > pointing to page table. > > [1] ppc64 needs to invalidate all the normal page pte mappings we > already have inserted in the hardware hash page table. But before > doing that we need to make sure there are no parallel hash page > table insert going on. So we need to do a kick_all_cpus_sync() > before flushing the older hash table entries. By moving this to > a separate function we capture these details and mention how it > is different from a hugepage pte clear. > > This patch is a cleanup and only does code movement for clarity. > There should not be any change in functionality. > > Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@xxxxxxxxxxxxxxxxxx> For the patchset: Acked-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> -- Kirill A. Shutemov -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>