Hugh Dickins b109b87050 mm/munlock: replace clear_page_mlock() by final clearance ... Placing munlock_vma_page() at the end of page_remove_rmap() shifts most of the munlocking to clear_page_mlock(), since PageMlocked is typically still set when mapcount has fallen to 0. That is not what we want: we want /proc/vmstat's unevictable_pgs_cleared to remain as a useful check on the integrity of of the mlock/munlock protocol - small numbers are not surprising, but big numbers mean the protocol is not working. That could be easily fixed by placing munlock_vma_page() at the start of page_remove_rmap(); but later in the series we shall want to batch the munlocking, and that too would tend to leave PageMlocked still set at the point when it is checked. So delete clear_page_mlock() now: leave it instead to release_pages() (and __page_cache_release()) to do this backstop clearing of Mlocked, when page refcount has fallen to 0. If a pinned page occasionally gets counted as Mlocked and Unevictable until it is unpinned, that's okay. A slightly regrettable side-effect of this change is that, since release_pages() and __page_cache_release() may be called at interrupt time, those places which update NR_MLOCK with interrupts enabled had better use mod_zone_page_state() than __mod_zone_page_state() (but holding the lruvec lock always has interrupts disabled). This change, forcing Mlocked off when refcount 0 instead of earlier when mapcount 0, is not fundamental: it can be reversed if performance or something else is found to suffer; but this is the easiest way to separate the stats - let's not complicate that without good reason. Signed-off-by: Hugh Dickins <hughd@google.com> Acked-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>		2022-02-17 11:56:53 -05:00
..
damon	mm/damon: hide kernel pointer from tracepoint event	2022-01-15 16:30:33 +02:00
kasan	lib/stackdepot: always do filter_irq_stacks() in stack_depot_save()	2022-01-22 08:33:38 +02:00
kfence	kfence: make test case compatible with run time set sample interval	2022-02-11 17:55:00 -08:00
backing-dev.c	mm: bdi: initialize bdi_min_ratio when bdi is unregistered	2021-12-10 17:10:56 -08:00
balloon_compaction.c	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
bootmem_info.c	bootmem: Use page->index instead of page->freelist	2022-01-06 12:27:03 +01:00
cma_debug.c	mm/cma: change cma mutex to irq safe spinlock	2021-05-05 11:27:21 -07:00
cma_sysfs.c	mm: cma: support sysfs	2021-05-05 11:27:24 -07:00
cma.c	memblock: rename memblock_free to memblock_phys_free	2021-11-06 13:30:41 -07:00
cma.h	mm: cma: support sysfs	2021-05-05 11:27:24 -07:00
compaction.c	mm: compaction: fix the migration stats in trace_mm_compaction_migratepages()	2022-01-15 16:30:30 +02:00
debug_page_ref.c
debug_vm_pgtable.c	mm/debug_vm_pgtable: remove pte entry from the page table	2022-02-04 09:25:04 -08:00
debug.c	mm,fs: split dump_mapping() out from dump_page()	2022-01-15 16:30:26 +02:00
dmapool.c	mm/dmapool.c: revert "make dma pool to use kmalloc_node"	2022-01-15 16:30:28 +02:00
early_ioremap.c	mm/early_ioremap.c: remove redundant early_ioremap_shutdown()	2021-09-08 11:50:24 -07:00
fadvise.c
failslab.c
filemap.c	Merge branch 'akpm' (patches from Andrew)	2022-01-22 11:28:23 +02:00
folio-compat.c	filemap: Add filemap_release_folio()	2022-01-04 13:15:34 -05:00
frontswap.c	frontswap: remove support for multiple ops	2022-01-22 08:33:38 +02:00
gup_test.c	selftests/vm: gup_test: test faulting in kernel, and verify pinnable pages	2021-05-05 11:27:26 -07:00
gup_test.h	selftests/vm: gup_test: fix test flag	2021-05-05 11:27:26 -07:00
gup.c	mm/munlock: delete FOLL_MLOCK and FOLL_POPULATE	2022-02-17 11:56:36 -05:00
highmem.c	Fixes for 5.16 folios:	2021-11-25 10:13:56 -08:00
hmm.c	mm/hmm.c: allow VM_MIXEDMAP to work with hmm_range_fault	2022-01-15 16:30:31 +02:00
huge_memory.c	mm/munlock: rmap call mlock_vma_page() munlock_vma_page()	2022-02-17 11:56:48 -05:00
hugetlb_cgroup.c	hugetlb: add hugetlb.*.numa_stat file	2022-01-15 16:30:29 +02:00
hugetlb_vmemmap.c	mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON	2021-06-30 20:47:26 -07:00
hugetlb_vmemmap.h	mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate	2021-06-30 20:47:25 -07:00
hugetlb.c	mm/munlock: rmap call mlock_vma_page() munlock_vma_page()	2022-02-17 11:56:48 -05:00
hwpoison-inject.c	mm: hwpoison: don't drop slab caches for offlining non-LRU page	2021-09-03 09:58:15 -07:00
init-mm.c	mm: add setup_initial_init_mm() helper	2021-07-08 11:48:21 -07:00
internal.h	mm/munlock: replace clear_page_mlock() by final clearance	2022-02-17 11:56:53 -05:00
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: move ioremap_page_range to vmalloc.c	2021-09-08 11:50:24 -07:00
Kconfig	mm: hide the FRONTSWAP Kconfig symbol	2022-01-22 08:33:38 +02:00
Kconfig.debug	mm: page table check	2022-01-15 16:30:28 +02:00
khugepaged.c	mm/munlock: rmap call mlock_vma_page() munlock_vma_page()	2022-02-17 11:56:48 -05:00
kmemleak.c	mm/kmemleak: avoid scanning potential huge holes	2022-02-04 09:25:05 -08:00
ksm.c	mm/munlock: rmap call mlock_vma_page() munlock_vma_page()	2022-02-17 11:56:48 -05:00
list_lru.c	mm: list_lru: only add memcg-aware lrus to the global lru list	2021-11-06 13:30:35 -07:00
maccess.c	ARM: 9115/1: mm/maccess: fix unaligned copy_{from,to}_kernel_nofault	2021-08-20 11:39:25 +01:00
madvise.c	mm/munlock: delete munlock_vma_pages_all(), allow oomreap	2022-02-17 11:56:44 -05:00
Makefile	mm: remove cleancache	2022-01-22 08:33:38 +02:00
mapping_dirty_helpers.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
memblock.c	arm64 fixes for -rc1	2021-11-10 11:29:30 -08:00
memcontrol.c	mm: memcg: synchronize objcg lists with a dedicated spinlock	2022-02-11 17:55:00 -08:00
memfd.c	mm,hugetlb: remove mlock ulimit for SHM_HUGETLB	2021-11-09 10:02:48 -08:00
memory_hotplug.c	treewide: Add missing includes masked by cgroup -> bpf dependency	2021-12-03 10:58:13 -08:00
memory-failure.c	memory-failure: fetch compound_head after pgmap_pfn_valid()	2022-01-30 09:56:58 +02:00
memory.c	mm/munlock: rmap call mlock_vma_page() munlock_vma_page()	2022-02-17 11:56:48 -05:00
mempolicy.c	mm/mempolicy: fix all kernel-doc warnings	2022-01-15 16:30:30 +02:00
mempool.c	mm: remove spurious blkdev.h includes	2021-10-18 06:17:01 -06:00
memremap.c	Merge branch 'akpm' (patches from Andrew)	2022-01-15 20:37:06 +02:00
memtest.c
migrate.c	mm/munlock: rmap call mlock_vma_page() munlock_vma_page()	2022-02-17 11:56:48 -05:00
mincore.c
mlock.c	mm/munlock: replace clear_page_mlock() by final clearance	2022-02-17 11:56:53 -05:00
mm_init.c	include/linux/page-flags-layout.h: cleanups	2021-04-30 11:20:42 -07:00
mmap_lock.c	mm: mmap_lock: fix disabling preemption directly	2021-07-23 17:43:28 -07:00
mmap.c	mm/munlock: delete munlock_vma_pages_all(), allow oomreap	2022-02-17 11:56:44 -05:00
mmu_gather.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
mmu_notifier.c	mm/mmu_notifiers: ensure range_end() is paired with range_start()	2021-03-25 09:22:55 -07:00
mmzone.c
mprotect.c	mm: add a field to store names for private anonymous memory	2022-01-15 16:30:27 +02:00
mremap.c	mm, hugepages: add mremap() support for hugepage backed vma	2021-11-06 13:30:39 -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	Merge branch 'akpm' (patches from Andrew)	2021-11-06 14:08:17 -07:00
oom_kill.c	mm/munlock: delete munlock_vma_pages_all(), allow oomreap	2022-02-17 11:56:44 -05:00
page_alloc.c	Merge branch 'akpm' (patches from Andrew)	2022-01-20 10:41:01 +02:00
page_counter.c	mm/page_counter: remove an incorrect call to propagate_protected_usage()	2022-01-15 16:30:27 +02:00
page_ext.c	mm: make some vars and functions static or __init	2022-01-15 16:30:31 +02:00
page_idle.c	mm/idle_page_tracking: make PG_idle reusable	2021-09-08 11:50:24 -07:00
page_io.c	delayacct: support swapin delay accounting for swapping without blkio	2022-01-20 08:52:55 +02:00
page_isolation.c	Revert "mm/page_isolation: unset migratetype directly for non Buddy page"	2022-02-04 09:25:04 -08:00
page_owner.c	lib/stackdepot: allow optional init and stack_table allocation by kvmalloc()	2022-01-22 08:33:37 +02:00
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: allow driver to specify reporting order	2021-06-29 10:53:47 -07:00
page_reporting.h	mm/page_reporting: export reporting order as module parameter	2021-06-29 10:53:47 -07:00
page_table_check.c	mm/page_table_check: check entries at pmd levels	2022-02-04 09:25:04 -08:00
page_vma_mapped.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
page-writeback.c	mm/writeback: Improve __folio_mark_dirty() comment	2022-01-02 20:28:57 -05:00
pagewalk.c	mm: pagewalk: fix walk for hugepage tables	2021-06-29 10:53:49 -07:00
percpu-internal.h	mm: memcg/percpu: account extra objcg space to memory cgroups	2022-01-15 16:30:31 +02:00
percpu-km.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu-stats.c	percpu: rework memcg accounting	2021-06-05 20:43:15 +00:00
percpu-vm.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu.c	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
pgalloc-track.h	mm: fix typos in comments	2021-05-07 00:26:35 -07:00
pgtable-generic.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
process_vm_access.c	mm/process_vm_access.c: remove duplicate include	2021-05-05 11:27:27 -07:00
ptdump.c	mm: ptdump: fix build failure	2021-04-16 16:10:37 -07:00
readahead.c	readahead: Convert page_cache_ra_unbounded to folios	2022-01-04 13:15:34 -05:00
rmap.c	mm/munlock: replace clear_page_mlock() by final clearance	2022-02-17 11:56:53 -05:00
rodata_test.c
secretmem.c	mm/secretmem: avoid letting secretmem_users drop to zero	2021-10-28 17:18:55 -07:00
shmem.c	mm: simplify try_to_unuse	2022-01-22 08:33:38 +02:00
shuffle.c	mm: eliminate "expecting prototype" kernel-doc warnings	2021-04-16 16:10:36 -07:00
shuffle.h	mm/shuffle: fix section mismatch warning	2021-05-22 15:09:07 -10:00
slab_common.c	Merge branch 'akpm' (patches from Andrew)	2022-01-15 20:37:06 +02:00
slab.c	mm/kasan: Convert to struct folio and struct slab	2022-01-06 12:26:14 +01:00
slab.h	slab changes for 5.17 - part 2	2022-01-18 06:40:47 +02:00
slob.c	mm/slob: Remove unnecessary page_mapcount_reset() function call	2022-01-06 12:27:28 +01:00
slub.c	mm/slub: Define struct slab fields for CONFIG_SLUB_CPU_PARTIAL only when enabled	2022-01-06 12:26:53 +01:00
sparse-vmemmap.c	mm: remove redundant smp_wmb()	2021-11-06 13:30:36 -07:00
sparse.c	bootmem: Use page->index instead of page->freelist	2022-01-06 12:27:03 +01:00
swap_cgroup.c
swap_slots.c	treewide: Add missing includes masked by cgroup -> bpf dependency	2021-12-03 10:58:13 -08:00
swap_state.c	mm/workingset: Convert workingset_refault() to take a folio	2021-10-18 07:49:40 -04:00
swap.c	mm/munlock: replace clear_page_mlock() by final clearance	2022-02-17 11:56:53 -05:00
swapfile.c	mm: mark swap_lock and swap_active_head static	2022-01-22 08:33:38 +02:00
truncate.c	mm: remove cleancache	2022-01-22 08:33:38 +02:00
usercopy.c	mm: Convert check_heap_object() to use struct slab	2022-01-06 12:25:51 +01:00
userfaultfd.c	mm/munlock: rmap call mlock_vma_page() munlock_vma_page()	2022-02-17 11:56:48 -05:00
util.c	mm: allow !GFP_KERNEL allocations for kvmalloc	2022-01-15 16:30:29 +02:00
vmacache.c
vmalloc.c	mm/vmalloc: be more explicit about supported gfp flags.	2022-01-15 16:30:28 +02:00
vmpressure.c	mm/vmpressure: fix data-race with memcg->socket_pressure	2021-11-06 13:30:40 -07:00
vmscan.c	mm: vmscan: remove deadlock due to throttling failing to make progress	2022-02-11 17:55:00 -08:00
vmstat.c	mm/vmstat: add events for THP max_ptes_* exceeds	2022-01-15 16:30:29 +02:00
workingset.c	Merge branch 'akpm' (patches from Andrew)	2021-11-09 10:11:53 -08:00
z3fold.c	mm/z3fold: add kerneldoc fields for z3fold_pool	2021-07-01 11:06:03 -07:00
zbud.c	mm/zbud: add kerneldoc fields for zbud_pool	2021-07-01 11:06:03 -07:00
zpool.c	zpool: remove the list of pools_head	2022-01-15 16:30:31 +02:00
zsmalloc.c	zsmalloc: replace get_cpu_var with local_lock	2022-01-22 08:33:37 +02:00
zswap.c	frontswap: remove support for multiple ops	2022-01-22 08:33:38 +02:00