On Wed, 11 Dec 2013, Dave Hansen wrote: > We now have slub's ->freelist usage impinging on page->mapping's > storage space. The buddy allocator wants ->mapping to be NULL > when a page is handed back, so we have to make sure that it is > cleared. > > Note that slab already doeds this, so just create a common helper > and have all the slabs do it this way. ->mapping is right next > to ->flags, so it's virtually guaranteed to be in the L1 at this > point, so this shouldn't cost very much to do in practice. Maybe add a common page alloc and free function in mm/slab_common.c? All the allocators do similar things after all. -- 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>