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Peter Xu 0ccf7f168e mm/thp: carry over dirty bit when thp splits on pmd 
Carry over the dirty bit from pmd to pte when a huge pmd splits.  It
shouldn't be a correctness issue since when pmd_dirty() we'll have the
page marked dirty anyway, however having dirty bit carried over helps the
next initial writes of split ptes on some archs like x86.

Link: https://lkml.kernel.org/r/20220811161331.37055-5-peterx@redhat.com
Signed-off-by: Peter Xu <peterx@redhat.com>
Reviewed-by: Huang Ying <ying.huang@intel.com>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andi Kleen <andi.kleen@intel.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: "Kirill A . Shutemov" <kirill@shutemov.name>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Dave Hansen <dave.hansen@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
 		2022-09-26 19:46:05 -07:00
..
damon Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
kasan - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
kfence kfence: add sysfs interface to disable kfence for selected slabs. 2022-09-11 20:25:52 -07:00
Kconfig mm: remove EXPERIMENTAL flag for zswap 2022-09-11 20:26:01 -07:00
Kconfig.debug Two followon fixes for the post-5.19 series "Use pageblock_order for cma 2022-05-27 11:40:49 -07:00
Makefile mm: shrinkers: introduce debugfs interface for memory shrinkers 2022-07-03 18:08:40 -07:00
backing-dev.c mm: backing-dev: Remove the unneeded result variable 2022-09-11 20:26:02 -07:00
balloon_compaction.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
bootmem_info.c bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem 2022-08-28 14:02:45 -07:00
cma.c Revert "mm/cma.c: remove redundant cma_mutex lock" 2022-05-13 15:11:26 -07:00
cma.h mm/cma: provide option to opt out from exposing pages on activation failure 2022-03-22 15:57:09 -07:00
cma_debug.c mm/cma_debug: show complete cma name in debugfs directories 2022-09-11 20:25:50 -07:00
cma_sysfs.c
…
compaction.c mm: fix null-ptr-deref in kswapd_is_running() 2022-09-11 20:26:04 -07:00
debug.c mm: unexport page_init_poison 2022-03-24 19:06:45 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c docs: rename Documentation/vm to Documentation/mm 2022-06-27 12:52:53 -07:00
dmapool.c
…
early_ioremap.c mm/early_ioremap: declare early_memremap_pgprot_adjust() 2022-03-22 15:57:11 -07:00
fadvise.c riscv: compat: syscall: Add compat_sys_call_table implementation 2022-04-26 13:36:25 -07:00
failslab.c mm: fix missing handler for __GFP_NOWARN 2022-05-19 14:08:55 -07:00
filemap.c filemap: remove find_get_pages_contig() 2022-09-11 20:26:03 -07:00
folio-compat.c mm/folio-compat: Remove migration compatibility functions 2022-08-02 12:34:04 -04:00
frontswap.c frontswap: don't call ->init if no ops are registered 2022-09-26 12:14:34 -07:00
gup.c Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
gup_test.c mm: rename is_pinnable_page() to is_longterm_pinnable_page() 2022-07-17 17:14:27 -07:00
gup_test.h
…
highmem.c - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
hmm.c mm/swap: add swp_offset_pfn() to fetch PFN from swap entry 2022-09-26 19:46:05 -07:00
huge_memory.c mm/thp: carry over dirty bit when thp splits on pmd 2022-09-26 19:46:05 -07:00
hugetlb.c Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
hugetlb_cgroup.c hugetlb_cgroup: use helper for_each_hstate and hstate_index 2022-09-11 20:25:53 -07:00
hugetlb_vmemmap.c mm: hugetlb_vmemmap: simplify reset_struct_pages() 2022-09-11 20:25:58 -07:00
hugetlb_vmemmap.h mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability 2022-08-08 18:06:43 -07:00
hwpoison-inject.c mm/memory-failure: disable unpoison once hw error happens 2022-06-16 19:11:32 -07:00
init-mm.c
…
internal.h mm/khugepaged: record SCAN_PMD_MAPPED when scan_pmd() finds hugepage 2022-09-11 20:25:46 -07:00
interval_tree.c
…
io-mapping.c
…
ioremap.c mm: ioremap: Add ioremap/iounmap_allowed() 2022-06-27 12:22:31 +01:00
khugepaged.c mm: MADV_COLLAPSE: refetch vm_end after reacquiring mmap_lock 2022-09-26 19:46:03 -07:00
kmemleak.c mm/kmemleak: make create_object return void 2022-09-11 20:26:10 -07:00
ksm.c mm: fix PageAnonExclusive clearing racing with concurrent RCU GUP-fast 2022-09-11 20:26:11 -07:00
list_lru.c mm: kmem: make mem_cgroup_from_obj() vmalloc()-safe 2022-06-16 19:48:31 -07:00
maccess.c asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
madvise.c Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
mapping_dirty_helpers.c
…
memblock.c memblock updates for v5.20 2022-08-09 09:48:30 -07:00
memcontrol.c mm: memcg: export workingset refault stats for cgroup v1 2022-09-11 20:25:59 -07:00
memfd.c
…
memory-failure.c mm/swap: add swp_offset_pfn() to fetch PFN from swap entry 2022-09-26 19:46:05 -07:00
memory.c Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
memory_hotplug.c mm: fix null-ptr-deref in kswapd_is_running() 2022-09-11 20:26:04 -07:00
mempolicy.c mm/hugetlb: add dedicated func to get 'allowed' nodemask for current process 2022-09-11 20:25:50 -07:00
mempool.c mm/mempool: use might_alloc() 2022-06-16 19:48:30 -07:00
memremap.c mm/mremap_pages: save a few cycles in get_dev_pagemap() 2022-09-11 20:26:11 -07:00
memtest.c
…
migrate.c memory tiering: hot page selection with hint page fault latency 2022-09-11 20:25:54 -07:00
migrate_device.c Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
mincore.c mm: teach core mm about pte markers 2022-05-13 07:20:09 -07:00
mlock.c mm: handling Non-LRU pages returned by vm_normal_pages 2022-07-17 17:14:28 -07:00
mm_init.c
…
mmap.c mm: align larger anonymous mappings on THP boundaries 2022-09-11 20:25:47 -07:00
mmap_lock.c
…
mmu_gather.c mm/mmu_gather: limit free batch count and add schedule point in tlb_batch_pages_flush 2022-04-28 23:16:12 -07:00
mmu_notifier.c mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() 2022-04-21 20:01:10 -07:00
mmzone.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
mprotect.c memory tiering: hot page selection with hint page fault latency 2022-09-11 20:25:54 -07:00
mremap.c Yang Shi has improved the behaviour of khugepaged collapsing of readonly 2022-05-26 12:32:41 -07:00
msync.c
…
nommu.c mm: nommu: pass a pointer to virt_to_page() 2022-07-17 17:14:37 -07:00
oom_kill.c mm/oom_kill.c: fix vm_oom_kill_table[] ifdeffery 2022-06-01 15:57:16 -07:00
page-writeback.c writeback: avoid use-after-free after removing device 2022-08-28 14:02:43 -07:00
page_alloc.c Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
page_counter.c mm: page_counter: remove unneeded atomic ops for low/min 2022-09-11 20:26:01 -07:00
page_ext.c page_ext: introduce boot parameter 'early_page_ext' 2022-09-11 20:26:02 -07:00
page_idle.c mm: don't be stuck to rmap lock on reclaim path 2022-05-19 14:08:54 -07:00
page_io.c mm/swap: remove the end_write_func argument to __swap_writepage 2022-09-11 20:25:50 -07:00
page_isolation.c mm/page_isolation: fix isolate_single_pageblock() isolation behavior 2022-09-26 12:14:34 -07:00
page_owner.c mm/page_owner.c: add llseek for page_owner 2022-09-11 20:25:59 -07:00
page_poison.c
…
page_reporting.c
…
page_reporting.h
…
page_table_check.c mm: fix use-after free of page_ext after race with memory-offline 2022-09-11 20:25:57 -07:00
page_vma_mapped.c mm/swap: add swp_offset_pfn() to fetch PFN from swap entry 2022-09-26 19:46:05 -07:00
pagewalk.c mm: pagewalk: add api documentation for walk_page_range_novma() 2022-09-11 20:26:00 -07:00
percpu-internal.h percpu: improve percpu_alloc_percpu event trace 2022-05-13 07:20:18 -07:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c mm: percpu: use kmemleak_ignore_phys() instead of kmemleak_free() 2022-07-17 17:14:47 -07:00
pgalloc-track.h
…
pgtable-generic.c mm: avoid unnecessary flush on change_huge_pmd() 2022-05-13 07:20:05 -07:00
process_vm_access.c
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ptdump.c mm: sparsemem: use page table lock to protect kernel pmd operations 2022-03-22 15:57:08 -07:00
readahead.c filemap: Fix serialization adding transparent huge pages to page cache 2022-06-23 12:22:00 -04:00
rmap.c mm: fix PageAnonExclusive clearing racing with concurrent RCU GUP-fast 2022-09-11 20:26:11 -07:00
rodata_test.c
…
secretmem.c mm: fix dereferencing possible ERR_PTR 2022-09-11 16:22:31 -07:00
shmem.c shmem: update folio if shmem_replace_page() updates the page 2022-08-28 14:02:43 -07:00
shrinker_debug.c mm: shrinkers: fix double kfree on shrinker name 2022-07-29 18:07:13 -07:00
shuffle.c
…
shuffle.h
…
slab.c - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
slab.h mm/slab_common: move generic bulk alloc/free functions to SLOB 2022-07-20 13:30:12 +02:00
slab_common.c mm/slab_common: move generic bulk alloc/free functions to SLOB 2022-07-20 13:30:12 +02:00
slob.c mm/slab_common: move generic bulk alloc/free functions to SLOB 2022-07-20 13:30:12 +02:00
slub.c kfence: add sysfs interface to disable kfence for selected slabs. 2022-09-11 20:25:52 -07:00
sparse-vmemmap.c mm: hugetlb_vmemmap: move vmemmap code related to HugeTLB to hugetlb_vmemmap.c 2022-08-08 18:06:42 -07:00
sparse.c mm: memory_hotplug: enumerate all supported section flags 2022-07-03 18:08:49 -07:00
swap.c - The usual batches of cleanups from Baoquan He, Muchun Song, Miaohe 2022-08-05 16:32:45 -07:00
swap.h mm/swap: remove the end_write_func argument to __swap_writepage 2022-09-11 20:25:50 -07:00
swap_cgroup.c
…
swap_slots.c arm64: enable THP_SWAP for arm64 2022-07-20 10:52:40 +01:00
swap_state.c mm: fix VM_BUG_ON in __delete_from_swap_cache() 2022-09-11 16:22:31 -07:00
swapfile.c mm/swap: convert delete_from_swap_cache() to take a folio 2022-07-03 18:08:48 -07:00
truncate.c mm: Remove __delete_from_page_cache() 2022-06-29 08:51:05 -04:00
usercopy.c usercopy: use unsigned long instead of uintptr_t 2022-07-01 17:03:38 -07:00
userfaultfd.c mm/uffd: reset write protection when unregister with wp-mode 2022-08-20 15:17:45 -07:00
util.c mm/util.c: add warning if __vm_enough_memory fails 2022-09-11 20:25:54 -07:00
vmacache.c
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vmalloc.c mm/vmalloc: extend find_vmap_lowest_match_check with extra arguments 2022-09-11 20:26:05 -07:00
vmpressure.c
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vmscan.c Merge branch 'mm-hotfixes-stable' into mm-stable 2022-09-26 13:13:15 -07:00
vmstat.c memory tiering: rate limit NUMA migration throughput 2022-09-11 20:25:54 -07:00
workingset.c mm: shrinkers: provide shrinkers with names 2022-07-03 18:08:40 -07:00
z3fold.c mm: Convert all PageMovable users to movable_operations 2022-08-02 12:34:03 -04:00
zbud.c
…
zpool.c
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zsmalloc.c zsmalloc: zs_object_copy: replace email link to doc 2022-09-11 20:25:56 -07:00
zswap.c mm/swap: remove the end_write_func argument to __swap_writepage 2022-09-11 20:25:50 -07:00