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linux/mm
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Chris Li 348e474f18 mm/swapfile.c: introduce function alloc_swap_scan_list() 
Patch series "mm/swapfile.c and swap.h cleanup", v3.

This patch series, which builds on Kairui's swap improve cluster scan series.
https://lore.kernel.org/linux-mm/20250806161748.76651-1-ryncsn@gmail.com/

It introduces a new function, alloc_swap_scan_list(), for swapfile.c.

It also cleans up swap.h by removing comments that reference fields that
have been deleted.

There are no functional changes in this two-patch series.


This patch (of 2):

alloc_swap_scan_list() will scan the whole list or the first cluster.

This reduces the repeat patterns of isolating a cluster then scanning that
cluster.  As a result, cluster_alloc_swap_entry() is shorter and
shallower.

No functional change.

Link: https://lkml.kernel.org/r/20250812-swap-scan-list-v3-0-6d73504d267b@kernel.org
Link: https://lkml.kernel.org/r/20250812-swap-scan-list-v3-1-6d73504d267b@kernel.org
Signed-off-by: Chris Li <chrisl@kernel.org>
Reviewed-by: Kairui Song <kasong@tencent.com>
Acked-by: Nhat Pham <nphamcs@gmail.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Barry Song <baohua@kernel.org>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2025-09-13 16:55:00 -07:00
..
damon
mm: remove redundant __GFP_NOWARN
2025-09-13 16:54:58 -07:00
kasan
mm/kasan/init.c: remove unnecessary pointer variables
2025-09-13 16:54:48 -07:00
kfence
kfence: Remove mention of PG_slab
2025-07-23 11:55:22 +02:00
kmsan
kmsan: test: add module description
2025-06-05 22:02:25 -07:00
backing-dev.c
mm: replace (20 - PAGE_SHIFT) with common macros for pages<->MB conversion
2025-09-13 16:54:42 -07:00
balloon_compaction.c
mm/migrate: fix NULL movable_ops if CONFIG_ZSMALLOC=m
2025-08-19 16:35:57 -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: simplify cma_maxchunk_get()
2025-07-24 19:12:36 -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: simplify cma_debug_show_areas()
2025-07-24 19:12:36 -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: rename PG_isolated to PG_movable_ops_isolated
2025-07-13 16:38:30 -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/debug_vm_pgtable: clear page table entries at destroy_args()
2025-08-19 16:35:54 -07:00
debug.c
mm: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -07:00
dmapool_test.c
mm/dmapool: add MODULE_DESCRIPTION()
2024-07-03 19:29:58 -07:00
dmapool.c
docs: dma-api: replace consistent with coherent
2025-07-01 13:25:36 -06:00
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: correct type for vmalloc vm_flags fields
2025-08-02 12:06:13 -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: remove redundant __GFP_NOWARN
2025-09-13 16:54:58 -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: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -07:00
highmem.c
mm/highmem: make nr_free_highpages() return "unsigned long"
2024-07-03 19:30:06 -07:00
hmm.c
mm/hmm: move pmd_to_hmm_pfn_flags() to the respective #ifdeffery
2025-07-19 18:59:53 -07:00
huge_memory.c
mm: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -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/page_owner: convert set_page_owner_migrate_reason() to folios
2025-07-19 18:59:57 -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
Merge tag 'mm-stable-2025-08-03-12-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-08-05 16:02:07 +03:00
interval_tree.c
…
ioremap.c
mm/ioremap: pass pgprot_t to ioremap_prot() instead of unsigned long
2025-03-16 22:06:23 -07:00
Kconfig
mm: add persistent huge zero folio
2025-09-13 16:54:54 -07:00
Kconfig.debug
mm: rename GENERIC_PTDUMP and PTDUMP_CORE
2025-03-17 00:05:32 -07:00
khugepaged.c
mm: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -07:00
kmemleak.c
mm: fix possible deadlock in kmemleak
2025-09-01 17:11:37 -07:00
ksm.c
mm: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -07:00
list_lru.c
mm, list_lru: refactor the locking code
2025-07-09 22:41:56 -07:00
maccess.c
mm: unexport globally copy_to_kernel_nofault
2025-07-09 22:42:22 -07:00
madvise.c
mm/mseal: small cleanups
2025-08-02 12:06:09 -07:00
Makefile
mm: remove mm/io-mapping.c
2025-08-02 12:06:10 -07:00
mapping_dirty_helpers.c
mm: remove redundant pXd_devmap calls
2025-07-09 22:42:17 -07:00
memblock.c
memblock: fix kernel-doc for MEMBLOCK_RSRV_NOINIT
2025-08-26 10:47:03 +03:00
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 'cgroup-for-6.17' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
2025-07-31 16:04:19 -07:00
memfd.c
mm/memfd: replace deprecated strcpy() with memcpy() in alloc_name()
2025-07-19 18:59:57 -07:00
memory_hotplug.c
mm: rename __PageMovable() to page_has_movable_ops()
2025-07-13 16:38:29 -07:00
memory-failure.c
mm/memory-failure: fix infinite UCE for VM_PFNMAP pfn
2025-08-19 16:35:56 -07:00
memory-tiers.c
mm,memory-tiers: use node-notifier instead of memory-notifier
2025-07-13 16:38:15 -07:00
memory.c
mm: rename vm_ops->find_special_page() to vm_ops->find_normal_page()
2025-09-13 16:54:53 -07:00
mempolicy.c
mm: split folio_pte_batch() into folio_pte_batch() and folio_pte_batch_flags()
2025-07-19 18:59:45 -07:00
mempool.c
mm: mempool: fix crash in mempool_free() for zero-minimum pools
2025-08-02 12:06:13 -07:00
memremap.c
mm/page_alloc: add support for initializing pageblock as isolated
2025-07-13 16:38:17 -07:00
memtest.c
…
migrate_device.c
treewide: remove MIGRATEPAGE_SUCCESS
2025-09-13 16:54:50 -07:00
migrate.c
treewide: remove MIGRATEPAGE_SUCCESS
2025-09-13 16:54:50 -07:00
mincore.c
mm/mincore: use a helper for checking the swap cache
2025-09-13 16:54:49 -07:00
mlock.c
mm: split folio_pte_batch() into folio_pte_batch() and folio_pte_batch_flags()
2025-07-19 18:59:45 -07:00
mm_init.c
mm/page_alloc: add support for initializing pageblock as isolated
2025-07-13 16:38:17 -07:00
mm_slot.h
…
mmap_lock.c
mm: change vma_start_read() to drop RCU lock on failure
2025-09-13 16:54:43 -07:00
mmap.c
mm: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -07:00
mmu_gather.c
mm: remove redundant __GFP_NOWARN
2025-09-13 16:54:58 -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: pass page directly instead of using folio_page
2025-08-11 23:00:59 -07:00
mremap.c
mm/mremap: fix WARN with uffd that has remap events disabled
2025-08-19 16:35:57 -07:00
mseal.c
mm/mseal: rework mseal apply logic
2025-08-02 12:06:09 -07:00
msync.c
…
nommu.c
mm/nommu: convert kobjsize() to folios
2025-09-13 16:54:46 -07:00
numa_emulation.c
mm: numa,memblock: Use SZ_1M macro to denote bytes to MB conversion
2025-08-20 16:31:23 +03:00
numa_memblks.c
mm: numa,memblock: Use SZ_1M macro to denote bytes to MB conversion
2025-08-20 16:31:23 +03:00
numa.c
mm/numa: remove unnecessary local variable in alloc_node_data()
2025-05-12 23:50:38 -07:00
oom_kill.c
mm: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -07:00
page_alloc.c
mm/page_alloc: remove trace_mm_alloc_contig_migrate_range_info()
2025-07-26 15:08:22 -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: derive the node from the pfn
2025-07-13 16:38:16 -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
sysfs: treewide: switch back to attribute_group::bin_attrs
2025-06-17 10:44:15 +02:00
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: drop __folio_test_movable() check for large folios
2025-07-13 16:38:29 -07:00
page_owner.c
mm/page_owner: convert set_page_owner_migrate_reason() to folios
2025-07-19 18:59:57 -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: remove redundant pXd_devmap calls
2025-07-09 22:42:17 -07:00
page-writeback.c
mm, vmstat: remove the NR_WRITEBACK_TEMP node_stat_item counter
2025-07-19 18:59:47 -07:00
pagewalk.c
mm: introduce and use vm_normal_page_pud()
2025-09-13 16:54:52 -07:00
percpu-internal.h
mm: remove CONFIG_MEMCG_KMEM
2024-07-10 12:14:54 -07:00
percpu-km.c
…
percpu-stats.c
mm: remove outdated filename comment in percpu-stats.c
2025-07-13 16:38:23 -07:00
percpu-vm.c
…
percpu.c
mm: introduce and use {pgd,p4d}_populate_kernel()
2025-08-27 22:45:44 -07:00
pgalloc-track.h
…
pgtable-generic.c
mm: remove redundant pXd_devmap calls
2025-07-09 22:42:17 -07:00
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/ptdump: take the memory hotplug lock inside ptdump_walk_pgd()
2025-07-09 22:42:20 -07:00
readahead.c
readahead: use folio_nr_pages() instead of shift operation
2025-07-19 18:59:53 -07:00
rmap.c
mm: remove redundant __GFP_NOWARN
2025-09-13 16:54:58 -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
Merge tag 'mm-stable-2025-07-30-15-25' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-07-31 14:57:54 -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
Merge tag 'mm-stable-2025-08-03-12-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-08-05 16:02:07 +03:00
show_mem.c
mm, vmstat: remove the NR_WRITEBACK_TEMP node_stat_item counter
2025-07-19 18:59:47 -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
slab: Add SL_pfmemalloc flag
2025-06-18 13:06:26 +02:00
slub.c
mm/slub: allow to set node and align in k[v]realloc
2025-09-13 16:54:45 -07:00
sparse-vmemmap.c
mm: introduce and use {pgd,p4d}_populate_kernel()
2025-08-27 22:45:44 -07:00
sparse.c
mm: fix accounting of memmap pages
2025-08-27 22:45:43 -07:00
swap_cgroup.c
mm: swap_cgroup: remove double initialization of locals
2025-03-17 22:06:58 -07:00
swap_state.c
mm/mincore, swap: consolidate swap cache checking for mincore
2025-09-13 16:54:49 -07:00
swap.c
mm: replace (20 - PAGE_SHIFT) with common macros for pages<->MB conversion
2025-09-13 16:54:42 -07:00
swap.h
mm/mincore, swap: consolidate swap cache checking for mincore
2025-09-13 16:54:49 -07:00
swapfile.c
mm/swapfile.c: introduce function alloc_swap_scan_list()
2025-09-13 16:55:00 -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/userfaultfd: fix kmap_local LIFO ordering for CONFIG_HIGHPTE
2025-08-27 22:45:41 -07:00
util.c
mm: convert core mm to mm_flags_*() accessors
2025-09-13 16:54:56 -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
Merge tag 'mm-stable-2025-08-03-12-35' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2025-08-05 16:02:07 +03:00
vma.h
mm/mseal: small cleanups
2025-08-02 12:06:09 -07:00
vmalloc.c
mm: remove redundant __GFP_NOWARN
2025-09-13 16:54:58 -07:00
vmpressure.c
memcg: convert memcg->socket_pressure to u64
2025-07-24 19:12:32 -07:00
vmscan.c
mm/mglru: update MG-LRU proactive reclaim statistics only to memcg
2025-09-13 16:54:42 -07:00
vmstat.c
mm: memory-tiering: fix PGPROMOTE_CANDIDATE counting
2025-09-13 16:54:42 -07:00
workingset.c
mm: workingset: simplify lockdep check in update_node
2025-05-12 23:50:44 -07:00
zpdesc.h
mm: convert "movable" flag in page->mapping to a page flag
2025-07-13 16:38:30 -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
treewide: remove MIGRATEPAGE_SUCCESS
2025-09-13 16:54:50 -07:00
zswap.c
mm/zswap: store <PAGE_SIZE compression failed page as-is
2025-09-13 16:54:59 -07:00