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a259945efe
linux/mm
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Zi Yan a259945efe mm/migrate: correct nr_failed in migrate_pages_sync() 
nr_failed was missing the large folio splits from migrate_pages_batch()
and can cause a mismatch between migrate_pages() return value and the
number of not migrated pages, i.e., when the return value of
migrate_pages() is 0, there are still pages left in the from page list. 
It will happen when a non-PMD THP large folio fails to migrate due to
-ENOMEM and is split successfully but not all the split pages are not
migrated, migrate_pages_batch() would return non-zero, but
astats.nr_thp_split = 0.  nr_failed would be 0 and returned to the caller
of migrate_pages(), but the not migrated pages are left in the from page
list without being added back to LRU lists.

Fix it by adding a new nr_split counter for large folio splits and adding
it to nr_failed in migrate_page_sync() after migrate_pages_batch() is
done.

Link: https://lkml.kernel.org/r/20231017163129.2025214-1-zi.yan@sent.com
Fixes: 2ef7dbb269 ("migrate_pages: try migrate in batch asynchronously firstly")
Signed-off-by: Zi Yan <ziy@nvidia.com>
Acked-by: Huang Ying <ying.huang@intel.com>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: David Hildenbrand <david@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-25 16:47:13 -07:00
..
damon mm/damon/sysfs: avoid empty scheme tried regions for large apply interval 2023-10-18 14:34:19 -07:00
kasan mm: delete checks for xor_unlock_is_negative_byte() 2023-10-18 14:34:17 -07:00
kfence LoongArch changes for v6.6 2023-09-08 12:16:52 -07:00
kmsan mm: kmsan: panic on failure to allocate early boot metadata 2023-10-25 16:47:10 -07:00
backing-dev.c writeback: remove redundant checks for root memcg 2023-08-21 13:37:48 -07:00
balloon_compaction.c
bootmem_info.c bootmem: use kmemleak_free_part_phys in put_page_bootmem 2023-10-25 16:47:13 -07:00
cma_debug.c
cma_sysfs.c mm: cma: make kobj_type structure constant 2023-03-28 16:20:06 -07:00
cma.c mm/cma: use nth_page() in place of direct struct page manipulation 2023-10-04 10:32:29 -07:00
cma.h
compaction.c mm/compaction: factor out code to test if we should run compaction for target order 2023-10-04 10:32:19 -07:00
debug_page_alloc.c mm: page_alloc: split out DEBUG_PAGEALLOC 2023-06-09 16:25:23 -07:00
debug_page_ref.c
debug_vm_pgtable.c Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
debug.c mm: update validate_mm() to use vma iterator 2023-06-09 16:25:31 -07:00
dmapool_test.c dmapool: add alloc/free performance test 2023-04-05 19:42:38 -07:00
dmapool.c dmapool: create/destroy cleanup 2023-06-09 16:25:17 -07:00
early_ioremap.c mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup() 2023-06-09 16:25:56 -07:00
fadvise.c mm: remove unnecessary pagevec includes 2023-06-23 16:59:31 -07:00
fail_page_alloc.c mm: page_alloc: split out FAIL_PAGE_ALLOC 2023-06-09 16:25:23 -07:00
failslab.c
filemap.c mm: drop the assumption that VM_SHARED always implies writable 2023-10-18 14:34:19 -07:00
folio-compat.c filemap: Add fgf_t typedef 2023-07-24 18:04:30 -04:00
gup_test.c Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes. 2023-06-23 16:58:19 -07:00
gup_test.h
gup.c mm/gup: make failure to pin an error if FOLL_NOWAIT not specified 2023-10-18 14:34:15 -07:00
highmem.c mm: ptep_get() conversion 2023-06-19 16:19:25 -07:00
hmm.c mm: enable page walking API to lock vmas during the walk 2023-08-21 13:07:20 -07:00
huge_memory.c mm: huge_memory: use folio_xchg_last_cpupid() in __split_huge_page_tail() 2023-10-25 16:47:12 -07:00
hugetlb_cgroup.c mm, hugetlb: remove HUGETLB_CGROUP_MIN_ORDER 2023-10-18 14:34:17 -07:00
hugetlb_vmemmap.c hugetlb_vmemmap: use folio argument for hugetlb_vmemmap_* functions 2023-10-25 16:47:08 -07:00
hugetlb_vmemmap.h hugetlb_vmemmap: use folio argument for hugetlb_vmemmap_* functions 2023-10-25 16:47:08 -07:00
hugetlb.c hugetlb_vmemmap: use folio argument for hugetlb_vmemmap_* functions 2023-10-25 16:47:08 -07:00
hwpoison-inject.c
init-mm.c mm: move dummy_vm_ops out of a header 2023-08-21 13:37:46 -07:00
internal.h mm: abstract VMA merge and extend into vma_merge_extend() helper 2023-10-18 14:34:18 -07:00
interval_tree.c
io-mapping.c
ioremap.c mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed 2023-08-18 10:12:36 -07:00
Kconfig mm: restrict the pcp batch scale factor to avoid too long latency 2023-10-25 16:47:10 -07:00
Kconfig.debug mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM 2023-05-29 16:14:28 +01:00
khugepaged.c - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
kmemleak.c mm/kmemleak: move the initialisation of object to __link_object 2023-10-25 16:47:13 -07:00
ksm.c mm/ksm: add pages_skipped metric 2023-10-16 15:44:39 -07:00
list_lru.c
maccess.c mm: Fix copy_from_user_nofault(). 2023-04-12 17:36:23 -07:00
madvise.c mm: drop the assumption that VM_SHARED always implies writable 2023-10-18 14:34:19 -07:00
Makefile mm: vmscan: move shrinker-related code into a separate file 2023-10-04 10:32:23 -07:00
mapping_dirty_helpers.c mm: fix clean_record_shared_mapping_range kernel-doc 2023-08-24 16:20:30 -07:00
memblock.c memblock: introduce MEMBLOCK_RSRV_NOINIT flag 2023-10-04 10:32:30 -07:00
memcontrol.c mm: kmem: reimplement get_obj_cgroup_from_current() 2023-10-25 16:47:11 -07:00
memfd.c memfd: drop warning for missing exec-related flags 2023-10-04 10:32:22 -07:00
memory_hotplug.c mm/memory_hotplug: use pfn math in place of direct struct page manipulation 2023-10-04 10:32:29 -07:00
memory-failure.c mm: convert DAX lock/unlock page to lock/unlock folio 2023-10-04 10:32:20 -07:00
memory-tiers.c dax, kmem: calculate abstract distance with general interface 2023-10-16 15:44:39 -07:00
memory.c mm: use folio_xchg_last_cpupid() in wp_page_reuse() 2023-10-25 16:47:13 -07:00
mempolicy.c mm: abstract the vma_merge()/split_vma() pattern for mprotect() et al. 2023-10-18 14:34:18 -07:00
mempool.c
memremap.c
memtest.c mm: memtest: convert to memtest_report_meminfo() 2023-08-21 13:37:47 -07:00
migrate_device.c Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
migrate.c mm/migrate: correct nr_failed in migrate_pages_sync() 2023-10-25 16:47:13 -07:00
mincore.c mm: enable page walking API to lock vmas during the walk 2023-08-21 13:07:20 -07:00
mlock.c mm: abstract the vma_merge()/split_vma() pattern for mprotect() et al. 2023-10-18 14:34:18 -07:00
mm_init.c mm: hugetlb: skip initialization of gigantic tail struct pages if freed by HVO 2023-10-04 10:32:30 -07:00
mm_slot.h
mmap_lock.c
mmap.c mm: perform the mapping_map_writable() check after call_mmap() 2023-10-18 14:34:19 -07:00
mmu_gather.c mm: fix kernel-doc warning from tlb_flush_rmaps() 2023-08-24 16:20:30 -07:00
mmu_notifier.c mmu_notifiers: rename invalidate_range notifier 2023-08-18 10:12:41 -07:00
mmzone.c mm: remove page_cpupid_xchg_last() 2023-10-25 16:47:13 -07:00
mprotect.c mm: mprotect: use a folio in change_pte_range() 2023-10-25 16:47:12 -07:00
mremap.c mm: abstract VMA merge and extend into vma_merge_extend() helper 2023-10-18 14:34:18 -07:00
msync.c
nommu.c mm: make vma_merge() and split_vma() internal 2023-10-18 14:34:18 -07:00
oom_kill.c mm/oom_killer: simplify OOM killer info dump helper 2023-10-25 16:47:10 -07:00
page_alloc.c mm, pcp: reduce detecting time of consecutive high order page freeing 2023-10-25 16:47:11 -07:00
page_counter.c
page_ext.c mm/page_ext: move functions around for minor cleanups to page_ext 2023-08-18 10:12:31 -07:00
page_idle.c
page_io.c mm: memcg: add THP swap out info for anonymous reclaim 2023-10-04 10:32:27 -07:00
page_isolation.c mm/hugetlb: get rid of page_hstate() 2023-08-18 10:12:39 -07:00
page_owner.c mm/page_owner: remove free_ts from page_owner output 2023-10-18 14:34:19 -07:00
page_poison.c mm/page_poison: remove unused page_ext.h from page_poison 2023-08-21 13:37:30 -07:00
page_reporting.c mm, treewide: redefine MAX_ORDER sanely 2023-04-05 19:42:46 -07:00
page_reporting.h
page_table_check.c mm: convert page_table_check_pte_set() to page_table_check_ptes_set() 2023-08-24 16:20:18 -07:00
page_vma_mapped.c mm: correct stale comment of function check_pte 2023-08-18 10:12:13 -07:00
page-writeback.c mm: use folio_xor_flags_has_waiters() in folio_end_writeback() 2023-10-18 14:34:17 -07:00
pagewalk.c mm/pagewalk: fix bootstopping regression from extra pte_unmap() 2023-09-02 08:39:21 -07:00
percpu-internal.h percpu-internal/pcpu_chunk: re-layout pcpu_chunk structure to reduce false sharing 2023-06-19 16:19:29 -07:00
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c percpu: scoped objcg protection 2023-10-25 16:47:11 -07:00
pgalloc-track.h
pgtable-generic.c mm/pgtable: notes on pte_offset_map[_lock]() 2023-08-18 10:12:25 -07:00
process_vm_access.c mm/gup: remove unused vmas parameter from pin_user_pages_remote() 2023-06-09 16:25:25 -07:00
ptdump.c mm: ptdump should use ptep_get_lockless() 2023-06-19 16:19:24 -07:00
readahead.c filemap: Allow __filemap_get_folio to allocate large folios 2023-07-24 18:04:30 -04:00
rmap.c mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap() 2023-10-18 14:34:14 -07:00
rodata_test.c
secretmem.c mm/secretmem: use a folio in secretmem_fault() 2023-08-21 13:38:02 -07:00
shmem_quota.c shmem: Add default quota limit mount options 2023-08-09 09:15:40 +02:00
shmem.c mm: update memfd seal write check to include F_SEAL_WRITE 2023-10-18 14:34:19 -07:00
show_mem.c mm: refactor si_mem_available() 2023-10-04 10:32:19 -07:00
shrinker_debug.c mm: shrinker: convert shrinker_rwsem to mutex 2023-10-04 10:32:26 -07:00
shrinker.c mm: shrinker: convert shrinker_rwsem to mutex 2023-10-04 10:32:26 -07:00
shuffle.c
shuffle.h mm, treewide: redefine MAX_ORDER sanely 2023-04-05 19:42:46 -07:00
slab_common.c slab fixes for 6.6-rc4 2023-09-29 12:10:12 -07:00
slab.c Randomized slab caches for kmalloc() 2023-07-18 10:07:47 +02:00
slab.h mm: kmem: scoped objcg protection 2023-10-25 16:47:11 -07:00
slub.c mm/slub: remove freelist_dereference() 2023-07-14 09:57:21 +02:00
sparse-vmemmap.c mm/vmemmap: allow architectures to override how vmemmap optimization works 2023-08-18 10:12:53 -07:00
sparse.c mm/sparse: remove redundant judgments from macro for_each_present_section_nr 2023-08-18 10:12:14 -07:00
swap_cgroup.c
swap_slots.c
swap_state.c mm/swap: avoid a xa load for swapout path 2023-10-25 16:47:11 -07:00
swap.c mm: remove references to pagevec 2023-06-23 16:59:30 -07:00
swap.h swap: remove remnants of polling from read_swap_cache_async 2023-08-24 16:20:16 -07:00
swapfile.c mm/swap: inline folio_set_swap_entry() and folio_swap_entry() 2023-08-24 16:20:28 -07:00
truncate.c - Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list") 2023-08-29 14:25:26 -07:00
usercopy.c mm: Fix copy_from_user_nofault(). 2023-04-12 17:36:23 -07:00
userfaultfd.c Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
util.c nilfs2: convert nilfs_copy_page() to nilfs_copy_folio() 2023-10-25 16:47:09 -07:00
vmalloc.c mm: hugetlb: add huge page size param to set_huge_pte_at() 2023-09-29 17:20:47 -07:00
vmpressure.c net-memcg: Fix scope of sockmem pressure indicators 2023-08-16 12:21:32 +01:00
vmscan.c mm: multi-gen LRU: reuse some legacy trace events 2023-10-18 14:34:14 -07:00
vmstat.c mm: tune PCP high automatically 2023-10-25 16:47:10 -07:00
workingset.c mm: workingset: dynamically allocate the mm-shadow shrinker 2023-10-04 10:32:24 -07:00
z3fold.c mm/z3fold: remove obsolete comment for struct z3fold_pool 2023-08-21 13:37:51 -07:00
zbud.c mm: zswap: remove shrink from zpool interface 2023-06-19 16:19:27 -07:00
zpool.c mm: zswap: remove shrink from zpool interface 2023-06-19 16:19:27 -07:00
zsmalloc.c zsmalloc: use copy_page for full page copy 2023-10-18 14:34:16 -07:00
zswap.c mm: zswap: fix pool refcount bug around shrink_worker() 2023-10-18 12:12:40 -07:00