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7b2ae3c47f65bc75985caaaba9f2fb601eebca20
linux/mm
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Alistair Popple 7b2ae3c47f mm/huge_memory: remove pXd_devmap usage from insert_pXd_pfn() 
Nothing uses PFN_DEV anymore so no need to create devmap pXd's when
mapping a PFN.  Instead special mappings will be created which ensures
vm_normal_page_pXd() will not return pages which don't have an associated
page.  This could change behaviour slightly on architectures where
pXd_devmap() does not imply pXd_special() as the normal page checks would
have fallen through to checking VM_PFNMAP/MIXEDMAP instead, which in
theory at least could have returned a page.

However vm_normal_page_pXd() should never have been returning pages for
pXd_devmap() entries anyway, so anything relying on that would have been a
bug.

Link: https://lkml.kernel.org/r/cd8658f9ff10afcfffd8b145a39d98bf1c595ffa.1750323463.git-series.apopple@nvidia.com
Signed-off-by: Alistair Popple <apopple@nvidia.com>
Cc: Balbir Singh <balbirs@nvidia.com>
Cc: Björn Töpel <bjorn@kernel.org>
Cc: Björn Töpel <bjorn@rivosinc.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Chunyan Zhang <zhang.lyra@gmail.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Deepak Gupta <debug@rivosinc.com>
Cc: Gerald Schaefer <gerald.schaefer@linux.ibm.com>
Cc: Inki Dae <m.szyprowski@samsung.com>
Cc: Jason Gunthorpe <jgg@nvidia.com>
Cc: John Groves <john@groves.net>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-07-09 22:42:17 -07:00
..
damon
mm/damon/paddr: use alloc_migartion_target() with no migration fallback nodemask
2025-07-09 22:42:12 -07:00
kasan
Merge tag 'hardening-v6.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
2025-05-28 07:47:10 -07:00
kfence
kfence: skip __GFP_THISNODE allocations on NUMA systems
2025-02-01 03:53:26 -08:00
kmsan
kmsan: test: add module description
2025-06-05 22:02:25 -07:00
backing-dev.c
treewide: Switch/rename to timer_delete[_sync]()
2025-04-05 10:30:12 +02:00
balloon_compaction.c
balloon_compaction: update the NR_BALLOON_PAGES state
2025-03-21 22:03:13 -07:00
bootmem_info.c
mm/sparse: allow for alternate vmemmap section init at boot
2025-03-16 22:06:27 -07:00
cma_debug.c
mm, cma: support multiple contiguous ranges, if requested
2025-03-16 22:06:25 -07:00
cma_sysfs.c
mm/cma: export total and free number of pages for CMA areas
2025-03-16 22:06:24 -07:00
cma.c
mm/cma: pair the trace_cma_alloc_start/finish
2025-07-09 22:41:58 -07:00
cma.h
mm: cma: set early_pfn and bitmap as a union in cma_memrange
2025-05-22 14:55:36 -07:00
compaction.c
mm: page_alloc: tighten up find_suitable_fallback()
2025-05-11 17:48:18 -07:00
debug_page_alloc.c
mm/debug_page_alloc: improve error message for invalid guardpage minorder
2025-05-12 23:50:38 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm: remove mk_huge_pte()
2025-05-11 17:48:04 -07:00
debug.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
dmapool_test.c
mm/dmapool: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
dmapool.c
dmapool: add NUMA affinity support
2025-05-20 05:34:27 +02:00
early_ioremap.c
mm/early_ioremap: add null pointer checks to prevent NULL-pointer dereference
2025-01-13 22:40:59 -08:00
execmem.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
fadvise.c
fdget(), trivial conversions
2024-11-03 01:28:06 -05:00
fail_page_alloc.c
fault-inject: improve build for CONFIG_FAULT_INJECTION=n
2024-09-01 20:43:33 -07:00
failslab.c
fault-inject: improve build for CONFIG_FAULT_INJECTION=n
2024-09-01 20:43:33 -07:00
filemap.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
folio-compat.c
mm: Remove grab_cache_page_write_begin()
2025-03-04 17:02:25 +00:00
gup_test.c
…
gup_test.h
…
gup.c
mm/gup: remove pXX_devmap usage from get_user_pages()
2025-07-09 22:42:16 -07:00
highmem.c
mm/highmem: make nr_free_highpages() return "unsigned long"
2024-07-03 19:30:06 -07:00
hmm.c
mm: convert vmf_insert_mixed() from using pte_devmap to pte_special
2025-07-09 22:42:16 -07:00
huge_memory.c
mm/huge_memory: remove pXd_devmap usage from insert_pXd_pfn()
2025-07-09 22:42:17 -07:00
hugetlb_cgroup.c
page_counter: track failcnt only for legacy cgroups
2025-03-17 00:05:35 -07:00
hugetlb_cma.c
mm/hugetlb: use separate nodemask for bootmem allocations
2025-05-12 23:50:35 -07:00
hugetlb_cma.h
mm/hugetlb: move hugetlb CMA code in to its own file
2025-03-16 22:06:31 -07:00
hugetlb_vmemmap.c
mm/pagewalk: split walk_page_range_novma() into kernel/user parts
2025-07-09 22:42:05 -07:00
hugetlb_vmemmap.h
mm/hugetlb: do pre-HVO for bootmem allocated pages
2025-03-16 22:06:29 -07:00
hugetlb.c
mm/memfd: reserve hugetlb folios before allocation
2025-07-09 22:42:15 -07:00
hwpoison-inject.c
mm/hwpoison: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
init-mm.c
mm: replace vm_lock and detached flag with a reference count
2025-03-16 22:06:20 -07:00
internal.h
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
interval_tree.c
…
io-mapping.c
mm/io-mapping: track_pfn() -> "pfnmap tracking"
2025-05-22 14:55:37 -07:00
ioremap.c
mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long
2025-03-16 22:06:23 -07:00
Kconfig
mm/percpu: conditionally define _shared_alloc_tag via CONFIG_ARCH_MODULE_NEEDS_WEAK_PER_CPU
2025-07-09 22:42:15 -07:00
Kconfig.debug
mm: rename GENERIC_PTDUMP and PTDUMP_CORE
2025-03-17 00:05:32 -07:00
khugepaged.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
kmemleak.c
mm/alloc_tag: fix the kmemleak false positive issue in the allocation of the percpu variable tag->counters
2025-06-25 15:55:03 -07:00
ksm.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
list_lru.c
mm, list_lru: refactor the locking code
2025-07-09 22:41:56 -07:00
maccess.c
maccess: fix strncpy_from_user_nofault() empty string handling
2025-05-11 17:54:10 -07:00
madvise.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
Makefile
mm: perform VMA allocation, freeing, duplication in mm
2025-05-12 23:50:48 -07:00
mapping_dirty_helpers.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
memblock.c
memblock: add KHO support for reserve_mem
2025-05-12 23:50:42 -07:00
memcontrol-v1.c
memcg: make count_memcg_events re-entrant safe against irqs
2025-05-22 14:55:38 -07:00
memcontrol-v1.h
memcg: move do_memsw_account() to CONFIG_MEMCG_V1
2025-03-21 22:03:11 -07:00
memcontrol.c
Merge tag 'mm-stable-2025-06-01-14-06' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-06-02 16:00:26 -07:00
memfd.c
mm/memfd: reserve hugetlb folios before allocation
2025-07-09 22:42:15 -07:00
memory_hotplug.c
drivers/base/node: rename __register_one_node() to register_one_node()
2025-07-09 22:42:00 -07:00
memory-failure.c
mm: memory-failure: enhance comments for return value of memory_failure()
2025-03-17 22:07:05 -07:00
memory-tiers.c
memory tiers: use default_dram_perf_ref_source in log message
2024-09-26 14:01:44 -07:00
memory.c
mm: convert vmf_insert_mixed() from using pte_devmap to pte_special
2025-07-09 22:42:16 -07:00
mempolicy.c
mm/mempolicy: skip unnecessary synchronize_rcu()
2025-07-09 22:42:02 -07:00
mempool.c
…
memremap.c
mm: introduce pfnmap_track() and pfnmap_untrack() and use them for memremap
2025-05-22 14:55:37 -07:00
memtest.c
…
migrate_device.c
Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 09:29:18 -07:00
migrate.c
Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-05-31 15:44:16 -07:00
mincore.c
mm: mincore: use pte_batch_hint() to batch process large folios
2025-05-22 14:55:36 -07:00
mlock.c
mm: allow compound zone device pages
2025-03-17 22:06:39 -07:00
mm_init.c
mm: rename CONFIG_PAGE_BLOCK_ORDER to CONFIG_PAGE_BLOCK_MAX_ORDER
2025-07-09 22:41:56 -07:00
mm_slot.h
…
mmap_lock.c
mm: move mmap/vma locking logic into specific files
2025-05-11 17:48:33 -07:00
mmap.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
mmu_gather.c
mmu_gather: move tlb flush for VM_PFNMAP/VM_MIXEDMAP vmas into free_pgtables()
2025-05-31 22:46:12 -07:00
mmu_notifier.c
Update Christoph's Email address and make it consistent
2025-05-12 23:50:31 -07:00
mmzone.c
mm: improve code consistency with zonelist_* helper functions
2024-09-01 20:25:55 -07:00
mprotect.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
mremap.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
mseal.c
mseal: remove can_do_mseal()
2025-01-13 22:40:51 -08:00
msync.c
…
nommu.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
numa_emulation.c
mm/fake-numa: allow later numa node hotplug
2025-01-25 20:22:29 -08:00
numa_memblks.c
mm: numa_memblks: introduce numa_add_reserved_memblk
2025-05-22 14:55:36 -07:00
numa.c
mm/numa: remove unnecessary local variable in alloc_node_data()
2025-05-12 23:50:38 -07:00
oom_kill.c
mm/oom_kill: fix trivial typo in comment
2025-03-16 22:05:55 -07:00
page_alloc.c
mm: restore documentation for __free_pages()
2025-07-09 22:41:52 -07:00
page_counter.c
page_counter: track failcnt only for legacy cgroups
2025-03-17 00:05:35 -07:00
page_ext.c
mm: page_ext: add an iteration API for page extensions
2025-03-17 22:06:57 -07:00
page_frag_cache.c
mm/page_alloc: export free_frozen_pages() instead of free_unref_page()
2025-01-13 22:40:31 -08:00
page_idle.c
mm/page_idle: handle device-exclusive entries correctly in page_idle_clear_pte_refs_one()
2025-03-16 22:05:59 -07:00
page_io.c
mm: stop passing a writeback_control structure to swap_writeout
2025-07-09 22:41:58 -07:00
page_isolation.c
mm: page_isolation: avoid calling folio_hstate() without hugetlb_lock
2025-04-01 15:14:43 -07:00
page_owner.c
mm: rename try_alloc_pages() to alloc_pages_nolock()
2025-05-22 14:55:37 -07:00
page_poison.c
…
page_reporting.c
…
page_reporting.h
…
page_table_check.c
mm/page_table_check: Batch-check pmds/puds just like ptes
2025-05-09 13:43:07 +01:00
page_vma_mapped.c
mm: make page_mapped_in_vma() hugetlb walk aware
2025-03-16 22:06:42 -07:00
page-writeback.c
treewide, timers: Rename from_timer() to timer_container_of()
2025-06-08 09:07:37 +02:00
pagewalk.c
mm: madvise: use per_vma lock for MADV_FREE
2025-07-09 22:42:07 -07:00
percpu-internal.h
mm: remove CONFIG_MEMCG_KMEM
2024-07-10 12:14:54 -07:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c
Merge tag 'mm-stable-2025-03-30-16-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-04-01 09:29:18 -07:00
pgalloc-track.h
…
pgtable-generic.c
mm: add RCU annotation to pte_offset_map(_lock)
2024-12-18 19:04:43 -08:00
process_vm_access.c
mm: refactor mm_access() to not return NULL
2024-11-05 16:56:23 -08:00
pt_reclaim.c
mm: pgtable: reclaim empty PTE page in madvise(MADV_DONTNEED)
2025-01-13 22:40:48 -08:00
ptdump.c
mm/pagewalk: split walk_page_range_novma() into kernel/user parts
2025-07-09 22:42:05 -07:00
readahead.c
mm/readahead: store folio order in struct file_ra_state
2025-07-09 22:42:03 -07:00
rmap.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
rodata_test.c
mm/rodata_test: verify test data is unchanged, rather than non-zero
2025-01-13 22:40:38 -08:00
secretmem.c
secretmem: remove uses of struct page
2025-07-09 22:42:10 -07:00
shmem_quota.c
shmem_quota: build the object file conditionally to the config option
2024-09-01 20:25:45 -07:00
shmem.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
show_mem.c
Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-05-31 15:44:16 -07:00
shrinker_debug.c
mm/shrinker: fix name consistency issue in shrinker_debugfs_rename()
2025-03-17 00:05:40 -07:00
shrinker.c
mm: shrinker: avoid memleak in alloc_shrinker_info
2024-10-31 20:27:04 -07:00
shuffle.c
…
shuffle.h
…
slab_common.c
Update Christoph's Email address and make it consistent
2025-05-12 23:50:31 -07:00
slab.h
Merge branch 'slab/for-6.15/kfree_rcu_tiny' into slab/for-next
2025-03-20 10:33:38 +01:00
slub.c
Merge tag 'slab-for-6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/vbabka/slab
2025-06-04 08:59:59 -07:00
sparse-vmemmap.c
mm/hugetlb: do pre-HVO for bootmem allocated pages
2025-03-16 22:06:29 -07:00
sparse.c
drivers/base/memory: improve add_boot_memory_block()
2025-03-17 22:07:01 -07:00
swap_cgroup.c
mm: swap_cgroup: remove double initialization of locals
2025-03-17 22:06:58 -07:00
swap_state.c
Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-05-31 15:44:16 -07:00
swap.c
memcg: make count_memcg_events re-entrant safe against irqs
2025-05-22 14:55:38 -07:00
swap.h
mm: stop passing a writeback_control structure to swap_writeout
2025-07-09 22:41:58 -07:00
swapfile.c
Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-05-31 15:44:16 -07:00
truncate.c
Merge tag 'mm-stable-2025-06-01-14-06' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-06-02 16:00:26 -07:00
usercopy.c
mm: security: Check early if HARDENED_USERCOPY is enabled
2025-02-28 11:51:31 -08:00
userfaultfd.c
mm: convert pXd_devmap checks to vma_is_dax
2025-07-09 22:42:15 -07:00
util.c
mm: add mmap_prepare() compatibility layer for nested file systems
2025-06-12 21:39:02 -07:00
vma_exec.c
mm/vma: use vmg->target to specify target VMA for new VMA merge
2025-07-09 22:42:11 -07:00
vma_init.c
mm: convert VM_PFNMAP tracking to pfnmap_track() + pfnmap_untrack()
2025-05-22 14:55:37 -07:00
vma_internal.h
mm/vma: move brk() internals to mm/vma.c
2025-01-13 22:40:42 -08:00
vma.c
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
vma.h
mm: update core kernel code to use vm_flags_t consistently
2025-07-09 22:42:13 -07:00
vmalloc.c
Merge tag 'mm-stable-2025-05-31-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-05-31 15:44:16 -07:00
vmpressure.c
…
vmscan.c
mm: convert vmf_insert_mixed() from using pte_devmap to pte_special
2025-07-09 22:42:16 -07:00
vmstat.c
mm: fix vmstat after removing NR_BOUNCE
2025-06-05 22:02:22 -07:00
workingset.c
mm: workingset: simplify lockdep check in update_node
2025-05-12 23:50:44 -07:00
zpdesc.h
mm: rename page->index to page->__folio_index
2025-05-31 22:46:06 -07:00
zpool.c
zsmalloc: prefer the the original page's node for compressed data
2025-05-11 17:48:06 -07:00
zsmalloc.c
zsmalloc: cleanup headers includes
2025-05-11 17:48:16 -07:00
zswap.c
mm: stop passing a writeback_control structure to __swap_writepage
2025-07-09 22:41:57 -07:00