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Nicholas Piggin bbc180a5ad mm: HUGE_VMAP arch support cleanup 
This changes the awkward approach where architectures provide init
functions to determine which levels they can provide large mappings for,
to one where the arch is queried for each call.

This removes code and indirection, and allows constant-folding of dead
code for unsupported levels.

This also adds a prot argument to the arch query.  This is unused
currently but could help with some architectures (e.g., some powerpc
processors can't map uncacheable memory with large pages).

Link: https://lkml.kernel.org/r/20210317062402.533919-7-npiggin@gmail.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Ding Tianhong <dingtianhong@huawei.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Will Deacon <will@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Miaohe Lin <linmiaohe@huawei.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Uladzislau Rezki (Sony) <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2021-04-30 11:20:40 -07:00
..
kasan
arm64 updates for 5.13:
2021-04-26 10:25:03 -07:00
kfence
kfence: make compatible with kmemleak
2021-03-25 09:22:55 -07:00
backing-dev.c
mm/backing-dev.c: use might_alloc()
2021-02-26 09:41:01 -08:00
balloon_compaction.c
…
cleancache.c
…
cma_debug.c
debugfs: make sure we can remove u32_array files cleanly
2020-07-10 13:54:00 -07:00
cma.c
mm: cma: print region name on failure
2021-02-26 09:41:00 -08:00
cma.h
mm: cma: use CMA_MAX_NAME to define the length of cma name array
2020-09-01 09:19:43 +02:00
compaction.c
mm, compaction: make fast_isolate_freepages() stay within zone
2021-02-24 13:38:34 -08:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm: HUGE_VMAP arch support cleanup
2021-04-30 11:20:40 -07:00
debug.c
mm/debug: improve memcg debugging
2021-02-24 13:38:27 -08:00
dmapool.c
mm/dmapool: switch from strlcpy to strscpy
2021-04-30 11:20:39 -07:00
early_ioremap.c
mm/early_ioremap.c: use __func__ instead of function name
2021-02-26 09:41:02 -08:00
fadvise.c
mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED
2020-10-13 18:38:29 -07:00
failslab.c
…
filemap.c
mm/filemap: update stale comment
2021-04-30 11:20:37 -07:00
frontswap.c
mm/frontswap: mark various intentional data races
2020-08-14 19:56:56 -07:00
gup_test.c
mm/gup_test.c: mark gup_test_init as __init function
2020-12-15 12:13:38 -08:00
gup_test.h
selftests/vm: gup_test: introduce the dump_pages() sub-test
2020-12-15 12:13:38 -08:00
gup.c
mm: gup: remove FOLL_SPLIT
2021-04-30 11:20:37 -07:00
highmem.c
mm/highmem: fix CONFIG_DEBUG_KMAP_LOCAL_FORCE_MAP
2021-03-25 09:22:55 -07:00
hmm.c
mm: do page fault accounting in handle_mm_fault
2020-08-12 10:58:02 -07:00
huge_memory.c
mm/memcg: rename mem_cgroup_split_huge_fixup to split_page_memcg and add nr_pages argument
2021-03-13 11:27:31 -08:00
hugetlb_cgroup.c
hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings
2021-03-25 09:22:55 -07:00
hugetlb.c
hugetlb_cgroup: fix imbalanced css_get and css_put pair for shared mappings
2021-03-25 09:22:55 -07:00
hwpoison-inject.c
mm,hwpoison-inject: don't pin for hwpoison_filter
2020-10-16 11:11:16 -07:00
init-mm.c
mm/gup: prevent gup_fast from racing with COW during fork
2020-12-15 12:13:39 -08:00
internal.h
Network filesystem helper library
2021-04-27 13:08:12 -07:00
interval_tree.c
mm/interval_tree: add comments to improve code readability
2021-04-30 11:20:38 -07:00
io-mapping.c
mm: add a io_mapping_map_user helper
2021-04-30 11:20:39 -07:00
ioremap.c
mm: HUGE_VMAP arch support cleanup
2021-04-30 11:20:40 -07:00
Kconfig
mm: add a io_mapping_map_user helper
2021-04-30 11:20:39 -07:00
Kconfig.debug
mm, page_poison: remove CONFIG_PAGE_POISONING_ZERO
2020-12-15 12:13:46 -08:00
khugepaged.c
mm,thp,shmem: make khugepaged obey tmpfs mount flags
2021-02-26 09:40:59 -08:00
kmemleak.c
mm/kmemleak.c: fix a typo
2021-04-30 11:20:36 -07:00
ksm.c
mm: cleanup kstrto*() usage
2020-12-15 12:13:47 -08:00
list_lru.c
mm/list_lru.c: remove kvfree_rcu_local()
2021-02-24 13:38:30 -08:00
maccess.c
uaccess: add force_uaccess_{begin,end} helpers
2020-08-12 10:57:59 -07:00
madvise.c
mm/madvise: replace ptrace attach requirement for process_madvise
2021-03-13 11:27:30 -08:00
Makefile
mm: add a io_mapping_map_user helper
2021-04-30 11:20:39 -07:00
mapping_dirty_helpers.c
mm/mapping_dirty_helpers: guard hugepage pud's usage
2021-04-16 16:10:37 -07:00
memblock.c
memblock: remove return value of memblock_free_all()
2021-02-22 13:01:23 -08:00
memcontrol.c
mm: memcontrol: inline __memcg_kmem_{un}charge() into obj_cgroup_{un}charge_pages()
2021-04-30 11:20:38 -07:00
memfd.c
…
memory_hotplug.c
arm64: mte: Map hotplugged memory as Normal Tagged
2021-03-10 10:56:46 +00:00
memory-failure.c
mm: fix memory_failure() handling of dax-namespace metadata
2021-02-26 09:41:00 -08:00
memory.c
mm: apply_to_pte_range warn and fail if a large pte is encountered
2021-04-30 11:20:39 -07:00
mempolicy.c
mm/mempolicy: use helper range_in_vma() in queue_pages_test_walk()
2021-02-24 13:38:34 -08:00
mempool.c
kasan: move _RET_IP_ to inline wrappers
2021-02-24 13:38:31 -08:00
memremap.c
mm/memremap.c: fix improper SPDX comment style
2021-04-30 11:20:37 -07:00
memtest.c
…
migrate.c
mm: memcg: add swapcache stat for memcg v2
2021-02-24 13:38:29 -08:00
mincore.c
inode: make init and permission helpers idmapped mount aware
2021-01-24 14:27:16 +01:00
mlock.c
mm/mlock: stop counting mlocked pages when none vma is found
2021-02-26 09:41:01 -08:00
mm_init.c
mm: fix fall-through warnings for Clang
2020-12-15 12:13:47 -08:00
mmap_lock.c
mm: mmap_lock: add tracepoints around lock acquisition
2020-12-15 12:13:41 -08:00
mmap.c
Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio"
2021-04-30 11:20:39 -07:00
mmu_gather.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
mmu_notifier.c
mm/mmu_notifiers: ensure range_end() is paired with range_start()
2021-03-25 09:22:55 -07:00
mmzone.c
mm/lru: replace pgdat lru_lock with lruvec lock
2020-12-15 14:48:04 -08:00
mprotect.c
mm/mprotect.c: optimize error detection in do_mprotect_pkey()
2021-02-24 13:38:30 -08:00
mremap.c
Revert "mremap: don't allow MREMAP_DONTUNMAP on special_mappings and aio"
2021-04-30 11:20:39 -07:00
msync.c
mm/msync: exit early when the flags is an MS_ASYNC and start < vm_start
2021-04-30 11:20:37 -07:00
nommu.c
mm/nommu: Fix return type of filemap_map_pages()
2021-01-28 14:10:31 +00:00
oom_kill.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
page_alloc.c
mm: memcontrol: directly access page->memcg_data in mm/page_alloc.c
2021-04-30 11:20:38 -07:00
page_counter.c
mm: page_counter: mitigate consequences of a page_counter underflow
2021-04-30 11:20:38 -07:00
page_ext.c
mm: fix some spelling mistakes in comments
2020-12-15 22:46:19 -08:00
page_idle.c
mm: page_idle_get_page() does not need lru_lock
2020-12-15 14:48:03 -08:00
page_io.c
swap: fix swapfile read/write offset
2021-03-02 17:25:46 -07:00
page_isolation.c
mm/page_isolation: do not isolate the max order page
2020-12-15 12:13:45 -08:00
page_owner.c
mm: page_owner: detect page_owner recursion via task_struct
2021-04-30 11:20:36 -07:00
page_poison.c
mm: page_poison: print page info when corruption is caught
2021-04-30 11:20:36 -07:00
page_reporting.c
mm/page_reporting: use list_entry_is_head() in page_reporting_cycle()
2021-02-24 13:38:30 -08:00
page_reporting.h
mm: introduce include/linux/pgtable.h
2020-06-09 09:39:13 -07:00
page_vma_mapped.c
mm/page_vma_mapped.c: add colon to fix kernel-doc markups error for check_pte
2020-12-15 12:13:41 -08:00
page-writeback.c
mm: page-writeback: simplify memcg handling in test_clear_page_writeback()
2021-04-30 11:20:37 -07:00
pagewalk.c
mmap locking API: convert mmap_sem comments
2020-06-09 09:39:14 -07:00
percpu-internal.h
percpu: make pcpu_nr_empty_pop_pages per chunk type
2021-04-09 13:58:38 +00:00
percpu-km.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu-stats.c
percpu: make pcpu_nr_empty_pop_pages per chunk type
2021-04-09 13:58:38 +00:00
percpu-vm.c
mm: memcg/percpu: account percpu memory to memory cgroups
2020-08-12 10:57:55 -07:00
percpu.c
percpu: make pcpu_nr_empty_pop_pages per chunk type
2021-04-09 13:58:38 +00:00
pgalloc-track.h
mm: move p?d_alloc_track to separate header file
2020-08-07 11:33:26 -07:00
pgtable-generic.c
mm/pgtable-generic.c: optimize the VM_BUG_ON condition in pmdp_huge_clear_flush()
2021-02-24 13:38:30 -08:00
process_vm_access.c
mm/process_vm_access.c: include compat.h
2021-01-12 18:12:54 -08:00
ptdump.c
mm: ptdump: fix build failure
2021-04-16 16:10:37 -07:00
readahead.c
mm: Implement readahead_control pageset expansion
2021-04-23 10:14:29 +01:00
rmap.c
mm/rmap: correct obsolete comment of page_get_anon_vma()
2021-02-26 09:41:01 -08:00
rodata_test.c
mm/rodata_test.c: fix missing function declaration
2020-08-21 09:52:53 -07:00
shmem.c
shmem: allow reporting fanotify events with file handles on tmpfs
2021-04-19 16:03:48 +02:00
shuffle.c
mm: eliminate "expecting prototype" kernel-doc warnings
2021-04-16 16:10:36 -07:00
shuffle.h
mm/shuffle: remove dynamic reconfiguration
2020-08-07 11:33:29 -07:00
slab_common.c
mm/slab_common: provide "slab_merge" option for !IS_ENABLED(CONFIG_SLAB_MERGE_DEFAULT) builds
2021-04-30 11:20:36 -07:00
slab.c
Merge branch 'for-mingo-rcu' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu
2021-04-11 14:31:43 +02:00
slab.h
RCU changes for this cycle were:
2021-04-28 12:00:13 -07:00
slob.c
mm: Don't build mm_dump_obj() on CONFIG_PRINTK=n kernels
2021-03-08 14:18:46 -08:00
slub.c
mm/slub.c: trivial typo fixes
2021-04-30 11:20:36 -07:00
sparse-vmemmap.c
mm/sparse: only sub-section aligned range would be populated
2020-08-07 11:33:27 -07:00
sparse.c
mm/sparse: add the missing sparse_buffer_fini() in error branch
2021-04-30 11:20:39 -07:00
swap_cgroup.c
mm: memcontrol: make swap tracking an integral part of memory control
2020-06-03 20:09:48 -07:00
swap_slots.c
mm/swap_slots.c: remove redundant NULL check
2021-02-24 13:38:28 -08:00
swap_state.c
memcg: charge before adding to swapcache on swapin
2021-04-30 11:20:38 -07:00
swap.c
mm: remove pagevec_lookup_entries
2021-02-26 09:40:59 -08:00
swapfile.c
swap: fix swapfile read/write offset
2021-03-02 17:25:46 -07:00
truncate.c
mm: remove pagevec_lookup_entries
2021-02-26 09:40:59 -08:00
usercopy.c
mm/usercopy.c: delete duplicated word
2020-08-12 10:57:58 -07:00
userfaultfd.c
mm/vmscan: protect the workingset on anonymous LRU
2020-08-12 10:57:55 -07:00
util.c
mm: move page_mapping_file to pagemap.h
2021-04-30 11:20:37 -07:00
vmacache.c
kernel: better document the use_mm/unuse_mm API contract
2020-06-10 19:14:18 -07:00
vmalloc.c
mm/vmalloc: rename vmap_*_range vmap_pages_*_range
2021-04-30 11:20:39 -07:00
vmpressure.c
mm: vmpressure: use mem_cgroup_is_root API
2020-04-02 09:35:31 -07:00
vmscan.c
mm/vmscan: restore zone_reclaim_mode ABI
2021-02-24 13:38:34 -08:00
vmstat.c
mm/vmstat.c: erase latency in vmstat_shepherd
2021-02-26 09:41:00 -08:00
workingset.c
mm: workingset: clarify eviction order and distance calculation
2021-02-24 13:38:34 -08:00
z3fold.c
z3fold: prevent reclaim/free race for headless pages
2021-03-25 09:22:55 -07:00
zbud.c
mm: set the sleep_mapped to true for zbud and z3fold
2021-02-26 09:41:01 -08:00
zpool.c
mm/zswap: add the flag can_sleep_mapped
2021-02-26 09:41:01 -08:00
zsmalloc.c
mm/zsmalloc.c: use page_private() to access page->private
2021-02-26 09:41:01 -08:00
zswap.c
mm/zswap: add the flag can_sleep_mapped
2021-02-26 09:41:01 -08:00