From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx> This is a little more serious attempt than v1, since nobody seems opposed to the concept of using GFP flags to pass the order around. I've split it up a bit better, and I've reversed the arguments of __alloc_pages_node to match the order of the arguments to other functions in the same family. alloc_pages_node() needs the same treatment, but there's about 70 callers, so I'm going to skip it for now. This is against current -mm. I'm seeing a text saving of 482 bytes from a tinyconfig vmlinux (1003785 reduced to 1003303). There are more savings to be had by combining together order and the gfp flags, for example in the scan_control data structure. I think there are also cognitive savings to be had from eliminating some of the function variants which exist solely to take an 'order'. Matthew Wilcox (Oracle) (15): mm: Remove gfp_flags argument from rmqueue_pcplist mm: Pass order to __alloc_pages_nodemask in GFP flags mm: Pass order to __alloc_pages in GFP flags mm: Pass order to alloc_page_interleave in GFP flags mm: Pass order to alloc_pages_current in GFP flags mm: Pass order to alloc_pages_vma in GFP flags mm: Pass order to __alloc_pages_node in GFP flags mm: Pass order to __get_free_page in GFP flags mm: Pass order to prep_new_page in GFP flags mm: Pass order to rmqueue in GFP flags mm: Pass order to get_page_from_freelist in GFP flags mm: Pass order to __alloc_pages_cpuset_fallback in GFP flags mm: Pass order to prepare_alloc_pages in GFP flags mm: Pass order to try_to_free_pages in GFP flags mm: Pass order to node_reclaim() in GFP flags arch/ia64/kernel/uncached.c | 6 +- arch/ia64/sn/pci/pci_dma.c | 4 +- arch/powerpc/platforms/cell/ras.c | 5 +- arch/x86/events/intel/ds.c | 4 +- arch/x86/kvm/vmx/vmx.c | 4 +- drivers/misc/sgi-xp/xpc_uv.c | 5 +- include/linux/gfp.h | 59 +++++++++++-------- include/linux/migrate.h | 2 +- include/linux/swap.h | 2 +- include/trace/events/vmscan.h | 28 ++++----- kernel/profile.c | 2 +- mm/filemap.c | 2 +- mm/gup.c | 4 +- mm/hugetlb.c | 5 +- mm/internal.h | 5 +- mm/khugepaged.c | 2 +- mm/mempolicy.c | 34 +++++------ mm/migrate.c | 9 ++- mm/page_alloc.c | 98 +++++++++++++++---------------- mm/shmem.c | 5 +- mm/slab.c | 3 +- mm/slob.c | 2 +- mm/slub.c | 2 +- mm/vmscan.c | 26 ++++---- 24 files changed, 157 insertions(+), 161 deletions(-) -- 2.20.1
