On Thu, 22 Aug 2013, Joonsoo Kim wrote: > And, therefore we should check pfmemalloc in page flag of first page, > but current implementation don't do that. virt_to_head_page(obj) just > return 'struct page' of that object, not one of first page, since the SLAB > don't use __GFP_COMP when CONFIG_MMU. To get 'struct page' of first page, > we first get a slab and try to get it via virt_to_head_page(slab->s_mem). Maybe using __GFP_COMP would make it consistent across all allocators and avoid the issue? We then do only have to set the flags on the first page. -- 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>