[027/227] mm/swap: fix confusing comment in folio_mark_accessed

From: Bang Li <libang.linuxer@gmail.com>

Date: Tue, 22 Mar 2022 14:39:52 -0700
To: 
 libang.linuxer@gmail.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org
From: Andrew Morton <akpm@linux-foundation.org>
In-Reply-To: <20220322143803.04a5e59a07e48284f196a2f9@linux-foundation.org>
Subject: [patch 027/227] mm/swap: fix confusing comment in folio_mark_accessed
Message-Id: <20220322213953.8DE1AC340EE@smtp.kernel.org>
Sender: owner-linux-mm@kvack.org
Precedence: bulk

Message ID	20220322213953.8DE1AC340EE@smtp.kernel.org (mailing list archive)
State	New
Headers	show Return-Path: <owner-linux-mm@kvack.org> Date: Tue, 22 Mar 2022 14:39:52 -0700 To: libang.linuxer@gmail.com,akpm@linux-foundation.org,patches@lists.linux.dev,linux-mm@kvack.org,mm-commits@vger.kernel.org,torvalds@linux-foundation.org,akpm@linux-foundation.org From: Andrew Morton <akpm@linux-foundation.org> In-Reply-To: <20220322143803.04a5e59a07e48284f196a2f9@linux-foundation.org> Subject: [patch 027/227] mm/swap: fix confusing comment in folio_mark_accessed Message-Id: <20220322213953.8DE1AC340EE@smtp.kernel.org> Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	[001/227] linux/kthread.h: remove unused macros \| expand [001/227] linux/kthread.h: remove unused macros [002/227] scripts/spelling.txt: add more spellings to spelling.txt [003/227] ntfs: add sanity check on allocation size [004/227] ocfs2: cleanup some return variables [005/227] fs/ocfs2: fix comments mentioning i_mutex [006/227] doc: convert 'subsection' to 'section' in gfp.h [007/227] mm: document and polish read-ahead code [008/227] mm: improve cleanup when ->readpages doesn't process all pages [009/227] fuse: remove reliance on bdi congestion [010/227] nfs: remove reliance on bdi congestion [011/227] ceph: remove reliance on bdi congestion [012/227] remove inode_congested() [013/227] remove bdi_congested() and wb_congested() and related functions [014/227] f2fs: replace congestion_wait() calls with io_schedule_timeout() [015/227] block/bfq-iosched.c: use "false" rather than "BLK_RW_ASYNC" [016/227] remove congestion tracking framework [017/227] mount: warn only once about timestamp range expiration [018/227] mm/memremap: avoid calling kasan_remove_zero_shadow() for device private memory [019/227] filemap: remove find_get_pages() [020/227] mm/writeback: minor clean up for highmem_dirtyable_memory [021/227] mm: fs: fix lru_cache_disabled race in bh_lru [022/227] mm: fix invalid page pointer returned with FOLL_PIN gups [023/227] mm/gup: follow_pfn_pte(): -EEXIST cleanup [024/227] mm/gup: remove unused pin_user_pages_locked() [025/227] mm: change lookup_node() to use get_user_pages_fast() [026/227] mm/gup: remove unused get_user_pages_locked() [027/227] mm/swap: fix confusing comment in folio_mark_accessed [028/227] tmpfs: support for file creation time [029/227] shmem: mapping_set_exiting() to help mapped resilience [030/227] tmpfs: do not allocate pages on read [031/227] mm: shmem: use helper macro __ATTR_RW [032/227] memcg: replace in_interrupt() with !in_task() [033/227] memcg: add per-memcg total kernel memory stat [034/227] mm/memcg: mem_cgroup_per_node is already set to 0 on allocation [035/227] mm/memcg: retrieve parent memcg from css.parent [036/227] memcg: refactor mem_cgroup_oom [037/227] memcg: unify force charging conditions [038/227] selftests: memcg: test high limit for single entry allocation [039/227] memcg: synchronously enforce memory.high for large overcharges [040/227] mm/memcontrol: return 1 from cgroup.memory __setup() handler [041/227] mm/memcg: revert ("mm/memcg: optimize user context object stock access") [043/227] mm/memcg: protect per-CPU counter by disabling preemption on PREEMPT_RT where needed. [044/227] mm/memcg: opencode the inner part of obj_cgroup_uncharge_pages() in drain_obj_stock() [045/227] mm/memcg: protect memcg_stock with a local_lock_t [047/227] mm: list_lru: transpose the array of per-node per-memcg lru lists [048/227] mm: introduce kmem_cache_alloc_lru [049/227] fs: introduce alloc_inode_sb() to allocate filesystems specific inode [050/227] fs: allocate inode by using alloc_inode_sb() [051/227] f2fs: allocate inode by using alloc_inode_sb() [052/227] mm: dcache: use kmem_cache_alloc_lru() to allocate dentry [053/227] xarray: use kmem_cache_alloc_lru to allocate xa_node [054/227] mm: memcontrol: move memcg_online_kmem() to mem_cgroup_css_online() [055/227] mm: list_lru: allocate list_lru_one only when needed [056/227] mm: list_lru: rename memcg_drain_all_list_lrus to memcg_reparent_list_lrus [057/227] mm: list_lru: replace linear array with xarray [058/227] mm: memcontrol: reuse memory cgroup ID for kmem ID [059/227] mm: memcontrol: fix cannot alloc the maximum memcg ID [060/227] mm: list_lru: rename list_lru_per_memcg to list_lru_memcg [061/227] mm: memcontrol: rename memcg_cache_id to memcg_kmem_id [062/227] memcg: enable accounting for tty-related objects [063/227] selftests, x86: fix how check_cc.sh is being invoked [064/227] mm: merge pte_mkhuge() call into arch_make_huge_pte() [065/227] mm: remove mmu_gathers storage from remaining architectures [066/227] mm: thp: fix wrong cache flush in remove_migration_pmd() [067/227] mm: fix missing cache flush for all tail pages of compound page [068/227] mm: hugetlb: fix missing cache flush in copy_huge_page_from_user() [069/227] mm: hugetlb: fix missing cache flush in hugetlb_mcopy_atomic_pte() [070/227] mm: shmem: fix missing cache flush in shmem_mfill_atomic_pte() [071/227] mm: userfaultfd: fix missing cache flush in mcopy_atomic_pte() and __mcopy_atomic() [072/227] mm: replace multiple dcache flush with flush_dcache_folio() [073/227] mm: don't skip swap entry even if zap_details specified [074/227] mm: rename zap_skip_check_mapping() to should_zap_page() [075/227] mm: change zap_details.zap_mapping into even_cows [076/227] mm: rework swap handling of zap_pte_range [077/227] mm/mmap: return 1 from stack_guard_gap __setup() handler [078/227] mm/memory.c: use helper function range_in_vma() [079/227] mm/memory.c: use helper macro min and max in unmap_mapping_range_tree() [080/227] mm: _install_special_mapping() apply VM_LOCKED_CLEAR_MASK [081/227] mm/mmap: remove obsolete comment in ksys_mmap_pgoff [082/227] mm/mremap:: use vma_lookup() instead of find_vma() [083/227] mm/sparse: make mminit_validate_memmodel_limits() static [084/227] mm/vmalloc: remove unneeded function forward declaration [085/227] mm/vmalloc: Move draining areas out of caller context [086/227] mm/vmalloc: add adjust_search_size parameter [087/227] mm/vmalloc: eliminate an extra orig_gfp_mask [088/227] mm/vmalloc.c: fix "unused function" warning [089/227] mm/vmalloc: fix comments about vmap_area struct [090/227] mm: page_alloc: avoid merging non-fallbackable pageblocks with others [091/227] mm/mmzone.c: use try_cmpxchg() in page_cpupid_xchg_last() [092/227] mm/mmzone.h: remove unused macros [093/227] mm/page_alloc: don't pass pfn to free_unref_page_commit() [094/227] cma: factor out minimum alignment requirement [095/227] mm: enforce pageblock_order < MAX_ORDER [096/227] mm/page_alloc: mark pagesets as __maybe_unused [097/227] mm/pages_alloc.c: don't create ZONE_MOVABLE beyond the end of a node [098/227] mm/page_alloc: fetch the correct pcp buddy during bulk free [099/227] mm/page_alloc: track range of active PCP lists during bulk free [100/227] mm/page_alloc: simplify how many pages are selected per pcp list during bulk free [101/227] mm/page_alloc: drain the requested list first during bulk free [102/227] mm/page_alloc: free pages in a single pass during bulk free [103/227] mm/page_alloc: limit number of high-order pages on PCP during bulk free [104/227] mm/page_alloc: do not prefetch buddies during bulk free [105/227] arch/x86/mm/numa: Do not initialize nodes twice [106/227] mm: count time in drain_all_pages during direct reclaim as memory pressure [107/227] mm/page_alloc: call check_new_pages() while zone spinlock is not held [108/227] mm/page_alloc: check high-order pages for corruption during PCP operations [109/227] mm/memory-failure.c: remove obsolete comment [110/227] mm/hwpoison: fix error page recovered but reported "not recovered" [111/227] mm: invalidate hwpoison page cache page in fault path [112/227] mm/memory-failure.c: minor clean up for memory_failure_dev_pagemap [113/227] mm/memory-failure.c: catch unexpected -EFAULT from vma_address() [114/227] mm/memory-failure.c: rework the signaling logic in kill_proc [115/227] mm/memory-failure.c: fix race with changing page more robustly [116/227] mm/memory-failure.c: remove PageSlab check in hwpoison_filter_dev [117/227] mm/memory-failure.c: rework the try_to_unmap logic in hwpoison_user_mappings() [118/227] mm/memory-failure.c: remove obsolete comment in __soft_offline_page [119/227] mm/memory-failure.c: remove unnecessary PageTransTail check [120/227] mm/hwpoison-inject: support injecting hwpoison to free page [121/227] mm/hwpoison: avoid the impact of hwpoison_filter() return value on mce handler [122/227] mm/hwpoison: add in-use hugepage hwpoison filter judgement [123/227] mm/memory-failure.c: fix race with changing page compound again [124/227] mm/memory-failure.c: avoid calling invalidate_inode_page() with unexpected pages [125/227] mm/memory-failure.c: make non-LRU movable pages unhandlable [126/227] mm, fault-injection: declare should_fail_alloc_page() [127/227] mm/mlock: fix potential imbalanced rlimit ucounts adjustment [128/227] mm: hugetlb: free the 2nd vmemmap page associated with each HugeTLB page [129/227] mm: hugetlb: replace hugetlb_free_vmemmap_enabled with a static_key [130/227] mm: sparsemem: use page table lock to protect kernel pmd operations [131/227] selftests: vm: add a hugetlb test case [132/227] mm: sparsemem: move vmemmap related to HugeTLB to CONFIG_HUGETLB_PAGE_FREE_VMEMMAP [133/227] mm/hugetlb: generalize ARCH_WANT_GENERAL_HUGETLB [134/227] hugetlb: clean up potential spectre issue warnings [135/227] mm/hugetlb: use helper macro __ATTR_RW [136/227] mm/hugetlb.c: export PageHeadHuge() [137/227] mm: remove unneeded local variable follflags [138/227] userfaultfd: provide unmasked address on page-fault [139/227] userfaultfd/selftests: fix uninitialized_var.cocci warning [140/227] mm/fs: delete PF_SWAPWRITE [141/227] mm: __isolate_lru_page_prepare() in isolate_migratepages_block() [142/227] mm/list_lru: optimize memcg_reparent_list_lru_node() [143/227] mm: lru_cache_disable: replace work queue synchronization with synchronize_rcu [144/227] mm: workingset: replace IRQ-off check with a lockdep assert. [145/227] mm: vmscan: fix documentation for page_check_references() [146/227] mm: compaction: cleanup the compaction trace events [147/227] mempolicy: mbind_range() set_policy() after vma_merge() [148/227] mm/oom_kill: remove unneeded is_memcg_oom check [149/227] mm,migrate: fix establishing demotion target [150/227] mm/migrate: fix race between lock page and clear PG_Isolated [151/227] mm/thp: refix __split_huge_pmd_locked() for migration PMD [152/227] mm/cma: provide option to opt out from exposing pages on activation failure [153/227] powerpc/fadump: opt out from freeing pages on cma activation failure [154/227] NUMA Balancing: add page promotion counter [155/227] NUMA balancing: optimize page placement for memory tiering system [156/227] memory tiering: skip to scan fast memory [157/227] mm: page_io: fix psi memory pressure error on cold swapins [158/227] mm/vmstat: add event for ksm swapping in copy [159/227] mm/ksm: use helper macro __ATTR_RW [160/227] mm/hwpoison: check the subpage, not the head page [161/227] mm/madvise: use vma_lookup() instead of find_vma() [162/227] mm: madvise: return correct bytes advised with process_madvise [163/227] mm: madvise: skip unmapped vma holes passed to process_madvise [164/227] mm, memory_hotplug: make arch_alloc_nodedata independent on CONFIG_MEMORY_HOTPLUG [165/227] mm: handle uninitialized numa nodes gracefully [166/227] mm, memory_hotplug: drop arch_free_nodedata [167/227] mm, memory_hotplug: reorganize new pgdat initialization [168/227] mm: make free_area_init_node aware of memory less nodes [169/227] memcg: do not tweak node in alloc_mem_cgroup_per_node_info [170/227] drivers/base/memory: add memory block to memory group after registration succeeded [171/227] drivers/base/node: consolidate node device subsystem initialization in node_dev_init() [172/227] mm/memory_hotplug: remove obsolete comment of __add_pages [173/227] mm/memory_hotplug: avoid calling zone_intersects() for ZONE_NORMAL [174/227] mm/memory_hotplug: clean up try_offline_node [175/227] mm/memory_hotplug: fix misplaced comment in offline_pages [176/227] drivers/base/node: rename link_mem_sections() to register_memory_block_under_node() [177/227] drivers/base/memory: determine and store zone for single-zone memory blocks [178/227] drivers/base/memory: clarify adding and removing of memory blocks [179/227] mm: only re-generate demotion targets when a numa node changes its N_CPU state [180/227] mm/thp: ClearPageDoubleMap in first page_add_file_rmap() [181/227] mm/zswap.c: allow handling just same-value filled pages [182/227] mm: remove usercopy_warn() [183/227] mm: uninline copy_overflow() [184/227] mm/usercopy: return 1 from hardened_usercopy __setup() handler [185/227] mm/early_ioremap: declare early_memremap_pgprot_adjust() [186/227] highmem: document kunmap_local() [187/227] mm/highmem: remove unnecessary done label [188/227] mm/page_table_check.c: use strtobool for param parsing [189/227] mm/kfence: remove unnecessary CONFIG_KFENCE option [190/227] kfence: allow re-enabling KFENCE after system startup [191/227] kfence: alloc kfence_pool after system startup [192/227] kunit: fix UAF when run kfence test case test_gfpzero [193/227] kunit: make kunit_test_timeout compatible with comment [194/227] kfence: test: try to avoid test_gfpzero trigger rcu_stall [195/227] kfence: allow use of a deferrable timer [196/227] mm/hmm.c: remove unneeded local variable ret [197/227] mm/damon/dbgfs/init_regions: use target index instead of target id [198/227] Docs/admin-guide/mm/damon/usage: update for changed initail_regions file input [199/227] mm/damon/core: move damon_set_targets() into dbgfs [200/227] mm/damon: remove the target id concept [201/227] mm/damon: remove redundant page validation [202/227] mm/damon: rename damon_primitives to damon_operations [203/227] mm/damon: let monitoring operations can be registered and selected [204/227] mm/damon/paddr,vaddr: register themselves to DAMON in subsys_initcall [205/227] mm/damon/reclaim: use damon_select_ops() instead of damon_{v,p}a_set_operations() [206/227] mm/damon/dbgfs: use damon_select_ops() instead of damon_{v,p}a_set_operations() [207/227] mm/damon/dbgfs: use operations id for knowing if the target has pid [208/227] mm/damon/dbgfs-test: fix is_target_id() change [209/227] mm/damon/paddr,vaddr: remove damon_{p,v}a_{target_valid,set_operations}() [210/227] mm/damon: remove unnecessary CONFIG_DAMON option [211/227] Docs/vm/damon: call low level monitoring primitives the operations [212/227] Docs/vm/damon/design: update DAMON-Idle Page Tracking interference handling [213/227] Docs/damon: update outdated term 'regions update interval' [214/227] mm/damon/core: allow non-exclusive DAMON start/stop [215/227] mm/damon/core: add number of each enum type values [216/227] mm/damon: implement a minimal stub for sysfs-based DAMON interface [217/227] mm/damon/sysfs: link DAMON for virtual address spaces monitoring [218/227] mm/damon/sysfs: support the physical address space monitoring [219/227] mm/damon/sysfs: support DAMON-based Operation Schemes [220/227] mm/damon/sysfs: support DAMOS quotas [221/227] mm/damon/sysfs: support schemes prioritization [222/227] mm/damon/sysfs: support DAMOS watermarks [223/227] mm/damon/sysfs: support DAMOS stats [224/227] selftests/damon: add a test for DAMON sysfs interface [225/227] Docs/admin-guide/mm/damon/usage: document DAMON sysfs interface [226/227] Docs/ABI/testing: add DAMON sysfs interface ABI document [227/227] mm/damon/sysfs: remove repeat container_of() in damon_sysfs_kdamond_release()

[027/227] mm/swap: fix confusing comment in folio_mark_accessed

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Patch