This is an offshoot of the folio work, although it does not depend on any of the outstanding pieces of folio work. One of the more complex parts of the struct page definition is the parts used by the slab allocators. It would be good for the MM in general if struct slab were its own data type, and it also helps to prevent tail pages from slipping in anywhere. The slub conversion is done "properly", ie in individually reviewable, bisectable chunks. The slab & slob conversions are slapdash. The patches to switch bootmem & zsmalloc away from slab elements are also expedient instead of well thought through. The KASAN and memcg parts would also benefit from a more thoughtful approach. I'm not entirely happy with slab_test_cache() for a predicate name. I actually liked SlabAllocation() better, but then I remembered that we're trying to get away from InterCapping, and somehow slab_test_allocation() didn't feel right either. I don't know the slab allocators terribly well, so I would be very grateful if one of the slab maintainers took over this effort. This is kind of a distraction from what I'm really trying to accomplish with folios, although it has found one minor bug. Matthew Wilcox (Oracle) (62): mm: Convert page_to_section() to pgflags_section() mm: Add pgflags_nid() mm: Split slab into its own type mm: Add account_slab() and unaccount_slab() mm: Convert virt_to_cache() to use struct slab mm: Convert __ksize() to struct slab mm: Use struct slab in kmem_obj_info() mm: Convert check_heap_object() to use struct slab mm/slub: Convert process_slab() to take a struct slab mm/slub: Convert detached_freelist to use a struct slab mm/slub: Convert kfree() to use a struct slab mm/slub: Convert __slab_free() to take a struct slab mm/slub: Convert new_slab() to return a struct slab mm/slub: Convert early_kmem_cache_node_alloc() to use struct slab mm/slub: Convert kmem_cache_cpu to struct slab mm/slub: Convert show_slab_objects() to struct slab mm/slub: Convert validate_slab() to take a struct slab mm/slub: Convert count_partial() to struct slab mm/slub: Convert bootstrap() to struct slab mm/slub: Convert __kmem_cache_do_shrink() to struct slab mm/slub: Convert free_partial() to use struct slab mm/slub: Convert list_slab_objects() to take a struct slab mm/slub: Convert slab_alloc_node() to use a struct slab mm/slub: Convert get_freelist() to take a struct slab mm/slub: Convert node_match() to take a struct slab mm/slub: Convert slab flushing to struct slab mm/slub: Convert __unfreeze_partials to take a struct slab mm/slub: Convert deactivate_slab() to take a struct slab mm/slub: Convert acquire_slab() to take a struct page mm/slub: Convert partial slab management to struct slab mm/slub: Convert slab freeing to struct slab mm/slub: Convert shuffle_freelist to struct slab mm/slub: Remove struct page argument to next_freelist_entry() mm/slub: Remove struct page argument from setup_object() mm/slub: Convert freelist_corrupted() to struct slab mm/slub: Convert full slab management to struct slab mm/slub: Convert free_consistency_checks() to take a struct slab mm/slub: Convert alloc_debug_processing() to struct slab mm/slub: Convert check_object() to struct slab mm/slub: Convert on_freelist() to struct slab mm/slub: Convert check_slab() to struct slab mm/slub: Convert check_valid_pointer() to struct slab mm/slub: Convert object_err() to take a struct slab mm/slub: Convert print_trailer() to struct slab mm/slub: Convert slab_err() to take a struct slab mm/slub: Convert print_page_info() to print_slab_info() mm/slub: Convert trace() to take a struct slab mm/slub: Convert cmpxchg_double_slab to struct slab mm/slub: Convert get_map() and __fill_map() to struct slab mm/slub: Convert slab_lock() and slab_unlock() to struct slab mm/slub: Convert setup_page_debug() to setup_slab_debug() mm/slub: Convert pfmemalloc_match() to take a struct slab mm/slub: Remove pfmemalloc_match_unsafe() mm: Convert slab to use struct slab mm: Convert slob to use struct slab mm: Convert slub to use struct slab memcg: Convert object cgroups from struct page to struct slab mm/kasan: Convert to struct slab zsmalloc: Stop using slab fields in struct page bootmem: Use page->index instead of page->freelist iommu: Use put_pages_list mm: Remove slab from struct page arch/x86/mm/init_64.c | 2 +- drivers/iommu/amd/io_pgtable.c | 99 +-- drivers/iommu/dma-iommu.c | 11 +- drivers/iommu/intel/iommu.c | 89 +-- include/asm-generic/memory_model.h | 2 +- include/linux/bootmem_info.h | 2 +- include/linux/iommu.h | 3 +- include/linux/kasan.h | 8 +- include/linux/memcontrol.h | 34 +- include/linux/mm.h | 16 +- include/linux/mm_types.h | 82 +- include/linux/page-flags.h | 66 +- include/linux/slab.h | 8 - include/linux/slab_def.h | 16 +- include/linux/slub_def.h | 25 +- mm/bootmem_info.c | 7 +- mm/kasan/common.c | 25 +- mm/kasan/generic.c | 8 +- mm/kasan/kasan.h | 2 +- mm/kasan/quarantine.c | 2 +- mm/kasan/report.c | 16 +- mm/kasan/report_tags.c | 10 +- mm/memcontrol.c | 33 +- mm/slab.c | 423 +++++----- mm/slab.h | 164 +++- mm/slab_common.c | 8 +- mm/slob.c | 42 +- mm/slub.c | 1143 ++++++++++++++-------------- mm/sparse.c | 8 +- mm/usercopy.c | 13 +- mm/zsmalloc.c | 18 +- 31 files changed, 1212 insertions(+), 1173 deletions(-) -- 2.32.0
