[119/181] docs/vm: fix 'mm_count' vs 'mm_users' counter confusion

From: Alexander Gordeev <agordeev@linux.ibm.com>

DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC23E206D5
Date: Tue, 13 Oct 2020 16:54:54 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: agordeev@linux.ibm.com, akpm@linux-foundation.org, corbet@lwn.net,
 linux-mm@kvack.org, mm-commits@vger.kernel.org,
 torvalds@linux-foundation.org
Subject: [patch 119/181] docs/vm: fix 'mm_count' vs 'mm_users'
 counter confusion
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Message ID	20201013235454.wF9oonFdH%akpm@linux-foundation.org (mailing list archive)
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Headers	show Return-Path: <SRS0=U9r9=DU=kvack.org=owner-linux-mm@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DC23E206D5 Date: Tue, 13 Oct 2020 16:54:54 -0700 From: Andrew Morton <akpm@linux-foundation.org> To: agordeev@linux.ibm.com, akpm@linux-foundation.org, corbet@lwn.net, linux-mm@kvack.org, mm-commits@vger.kernel.org, torvalds@linux-foundation.org Subject: [patch 119/181] docs/vm: fix 'mm_count' vs 'mm_users' counter confusion Message-ID: <20201013235454.wF9oonFdH%akpm@linux-foundation.org> In-Reply-To: <20201013164658.3bfd96cc224d8923e66a9f4e@linux-foundation.org> User-Agent: s-nail v14.8.16 Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	[001/181] compiler-clang: add build check for clang 10.0.1 \| expand [001/181] compiler-clang: add build check for clang 10.0.1 [002/181] Revert "kbuild: disable clang's default use of -fmerge-all-constants" [003/181] Revert "arm64: bti: Require clang >= 10.0.1 for in-kernel BTI support" [004/181] Revert "arm64: vdso: Fix compilation with clang older than 8" [005/181] Partially revert "ARM: 8905/1: Emit __gnu_mcount_nc when using Clang 10.0.0 or newer" [006/181] kasan: remove mentions of unsupported Clang versions [007/181] compiler-gcc: improve version error [008/181] compiler.h: avoid escaped section names [009/181] export.h: fix section name for CONFIG_TRIM_UNUSED_KSYMS for Clang [010/181] kbuild: doc: describe proper script invocation [011/181] scripts/spelling.txt: increase error-prone spell checking [012/181] scripts/spelling.txt: add "arbitrary" typo [013/181] scripts/decodecode: add the capability to supply the program counter [014/181] ntfs: add check for mft record size in superblock [015/181] ocfs2: delete repeated words in comments [016/181] ocfs2: fix potential soft lockup during fstrim [017/181] fs/xattr.c: fix kernel-doc warnings for setxattr & removexattr [018/181] fs_parse: mark fs_param_bad_value() as static [019/181] mm/slab.c: clean code by removing redundant if condition [020/181] include/linux/slab.h: fix a typo error in comment [021/181] mm/slub.c: branch optimization in free slowpath [022/181] mm/slub: fix missing ALLOC_SLOWPATH stat when bulk alloc [023/181] mm/slub: make add_full() condition more explicit [024/181] mm/kmemleak: rely on rcu for task stack scanning [025/181] mm,kmemleak-test.c: move kmemleak-test.c to samples dir [026/181] x86/numa: cleanup configuration dependent command-line options [027/181] x86/numa: add 'nohmat' option [028/181] efi/fake_mem: arrange for a resource entry per efi_fake_mem instance [029/181] ACPI: HMAT: refactor hmat_register_target_device to hmem_register_device [030/181] resource: report parent to walk_iomem_res_desc() callback [031/181] mm/memory_hotplug: introduce default phys_to_target_node() implementation [032/181] ACPI: HMAT: attach a device for each soft-reserved range [033/181] device-dax: drop the dax_region.pfn_flags attribute [034/181] device-dax: move instance creation parameters to 'struct dev_dax_data' [035/181] device-dax: make pgmap optional for instance creation [036/181] device-dax/kmem: introduce dax_kmem_range() [037/181] device-dax/kmem: move resource name tracking to drvdata [038/181] device-dax/kmem: replace release_resource() with release_mem_region() [039/181] device-dax: add an allocation interface for device-dax instances [040/181] device-dax: introduce 'struct dev_dax' typed-driver operations [041/181] device-dax: introduce 'seed' devices [042/181] drivers/base: make device_find_child_by_name() compatible with sysfs inputs [043/181] device-dax: add resize support [044/181] mm/memremap_pages: convert to 'struct range' [045/181] mm/memremap_pages: support multiple ranges per invocation [046/181] device-dax: add dis-contiguous resource support [047/181] device-dax: introduce 'mapping' devices [048/181] device-dax: make align a per-device property [049/181] device-dax: add an 'align' attribute [050/181] dax/hmem: introduce dax_hmem.region_idle parameter [051/181] device-dax: add a range mapping allocation attribute [052/181] mm/debug.c: do not dereference i_ino blindly [053/181] mm, dump_page: rename head_mapcount() --> head_compound_mapcount() [054/181] mm: factor find_get_incore_page out of mincore_page [055/181] mm: use find_get_incore_page in memcontrol [056/181] mm: optimise madvise WILLNEED [057/181] proc: optimise smaps for shmem entries [058/181] i915: use find_lock_page instead of find_lock_entry [059/181] mm: convert find_get_entry to return the head page [060/181] mm/shmem: return head page from find_lock_entry [061/181] mm: add find_lock_head [062/181] mm/filemap: fix filemap_map_pages for THP [063/181] mm, fadvise: improve the expensive remote LRU cache draining after FADV_DONTNEED [064/181] mm/gup_benchmark: update the documentation in Kconfig [065/181] mm/gup_benchmark: use pin_user_pages for FOLL_LONGTERM flag [066/181] mm/gup: don't permit users to call get_user_pages with FOLL_LONGTERM [067/181] mm/gup: protect unpin_user_pages() against npages==-ERRNO [068/181] swap: rename SWP_FS to SWAP_FS_OPS to avoid ambiguity [069/181] mm: remove activate_page() from unuse_pte() [070/181] mm: remove superfluous __ClearPageActive() [071/181] mm/swap.c: fix confusing comment in release_pages() [072/181] mm/swap_slots.c: remove always zero and unused return value of enable_swap_slots_cache() [073/181] mm/page_io.c: remove useless out label in __swap_writepage() [074/181] mm/swap.c: fix incomplete comment in lru_cache_add_inactive_or_unevictable() [075/181] mm/swapfile.c: remove unnecessary goto out in _swap_info_get() [076/181] mm/swapfile.c: fix potential memory leak in sys_swapon [077/181] mm/memremap.c: convert devmap static branch to {inc,dec} [078/181] mm: memcontrol: use flex_array_size() helper in memcpy() [079/181] mm: memcontrol: use the preferred form for passing the size of a structure type [080/181] mm: memcg/slab: fix racy access to page->mem_cgroup in mem_cgroup_from_obj() [081/181] mm: memcontrol: correct the comment of mem_cgroup_iter() [082/181] mm/memcg: clean up obsolete enum charge_type [083/181] mm/memcg: simplify mem_cgroup_get_max() [084/181] mm/memcg: unify swap and memsw page counters [085/181] mm: memcontrol: add the missing numa_stat interface for cgroup v2 [086/181] mm/page_counter: correct the obsolete func name in the comment of page_counter_try_charge… [087/181] mm: memcontrol: reword obsolete comment of mem_cgroup_unmark_under_oom() [088/181] mm: memcg/slab: uncharge during kmem_cache_free_bulk() [089/181] mm/memcg: fix device private memcg accounting [090/181] selftests/vm: fix false build success on the second and later attempts [091/181] selftests/vm: fix incorrect gcc invocation in some cases [092/181] mm: account PMD tables like PTE tables [093/181] mm/memory.c: fix typo in __do_fault() comment [094/181] mm/memory.c: replace vmf->vma with variable vma [095/181] mm/mmap: rename __vma_unlink_common() to __vma_unlink() [096/181] mm/mmap: leverage vma_rb_erase_ignore() to implement vma_rb_erase() [097/181] mmap locking API: add mmap_lock_is_contended() [098/181] mm: smaps*: extend smap_gather_stats to support specified beginning [099/181] mm: proc: smaps_rollup: do not stall write attempts on mmap_lock [100/181] mm: move PageDoubleMap bit [101/181] mm: simplify PageDoubleMap with PF_SECOND policy [102/181] mm/mmap: leave adjust_next as virtual address instead of page frame number [103/181] mm/memory.c: fix spello of "function" [104/181] mm/mmap: not necessary to check mapping separately [105/181] mm/mmap: check on file instead of the rb_root_cached of its address_space [106/181] mm: use helper function mapping_allow_writable() [107/181] mm/mmap.c: use helper function allow_write_access() in __remove_shared_vm_struct() [108/181] mm/mmap.c: replace do_brk with do_brk_flags in comment of insert_vm_struct() [109/181] mm: remove src/dst mm parameter in copy_page_range() [110/181] include/linux/huge_mm.h: remove mincore_huge_pmd declaration [111/181] tools/testing/selftests/vm/hmm-tests.c: use the new SKIP() macro [112/181] lib/test_hmm.c: remove unused dmirror_zero_page [113/181] mm/dmapool.c: replace open-coded list_for_each_entry_safe() [114/181] mm/dmapool.c: replace hard coded function name with __func__ [115/181] mm/memory-failure: do pgoff calculation before for_each_process() [116/181] mm/memory-failure.c: remove unused macro `writeback' [117/181] mm/vmalloc.c: update the comment in __vmalloc_area_node() [118/181] mm/vmalloc.c: fix the comment of find_vm_area [119/181] docs/vm: fix 'mm_count' vs 'mm_users' counter confusion [120/181] kasan/kunit: add KUnit Struct to Current Task [121/181] KUnit: KASAN Integration [122/181] KASAN: port KASAN Tests to KUnit [123/181] KASAN: Testing Documentation [124/181] mm: kasan: do not panic if both panic_on_warn and kasan_multishot set [125/181] mm/page_alloc: tweak comments in has_unmovable_pages() [126/181] mm/page_isolation: exit early when pageblock is isolated in set_migratetype_isolate() [127/181] mm/page_isolation: drop WARN_ON_ONCE() in set_migratetype_isolate() [128/181] mm/page_isolation: cleanup set_migratetype_isolate() [129/181] virtio-mem: don't special-case ZONE_MOVABLE [130/181] mm: document semantics of ZONE_MOVABLE [131/181] mm, isolation: avoid checking unmovable pages across pageblock boundary [132/181] mm/page_alloc.c: clean code by removing unnecessary initialization [133/181] mm/page_alloc.c: micro-optimization remove unnecessary branch [134/181] mm/page_alloc.c: fix early params garbage value accesses [135/181] mm/page_alloc.c: clean code by merging two functions [136/181] mm/page_alloc.c: __perform_reclaim should return 'unsigned long' [137/181] mmzone: clean code by removing unused macro parameter [138/181] mm: move call to compound_head() in release_pages() [139/181] mm/page_alloc.c: fix freeing non-compound pages [140/181] include/linux/gfp.h: clarify usage of GFP_ATOMIC in !preemptible contexts [141/181] mm/hugetlb.c: make is_hugetlb_entry_hwpoisoned return bool [142/181] mm/hugetlb.c: remove the unnecessary non_swap_entry() [143/181] doc/vm: fix typo in the hugetlb admin documentation [144/181] mm/hugetlb: not necessary to coalesce regions recursively [145/181] mm/hugetlb: remove VM_BUG_ON(!nrg) in get_file_region_entry_from_cache() [146/181] mm/hugetlb: use list_splice to merge two list at once [147/181] mm/hugetlb: count file_region to be added when regions_needed != NULL [148/181] mm/hugetlb: a page from buddy is not on any list [149/181] mm/hugetlb: narrow the hugetlb_lock protection area during preparing huge page [150/181] mm/hugetlb: take the free hpage during the iteration directly [151/181] hugetlb: add lockdep check for i_mmap_rwsem held in huge_pmd_share [152/181] mm/vmscan: fix infinite loop in drop_slab_node [153/181] mm/vmscan: fix comments for isolate_lru_page() [154/181] mm/z3fold.c: use xx_zalloc instead xx_alloc and memset [155/181] mm/zbud: remove redundant initialization [156/181] mm/compaction.c: micro-optimization remove unnecessary branch [157/181] include/linux/compaction.h: clean code by removing unused enum value [158/181] selftests/vm: 8x compaction_test speedup [159/181] mm/mempolicy: remove or narrow the lock on current [160/181] mm: remove unused alloc_page_vma_node() [161/181] mm/mempool: add 'else' to split mutually exclusive case [162/181] KVM: PPC: Book3S HV: simplify kvm_cma_reserve() [163/181] dma-contiguous: simplify cma_early_percent_memory() [164/181] arm, xtensa: simplify initialization of high memory pages [165/181] arm64: numa: simplify dummy_numa_init() [166/181] h8300, nds32, openrisc: simplify detection of memory extents [167/181] riscv: drop unneeded node initialization [168/181] mircoblaze: drop unneeded NUMA and sparsemem initializations [169/181] memblock: make for_each_memblock_type() iterator private [170/181] memblock: make memblock_debug and related functionality private [171/181] memblock: reduce number of parameters in for_each_mem_range() [172/181] arch, mm: replace for_each_memblock() with for_each_mem_pfn_range() [173/181] arch, drivers: replace for_each_membock() with for_each_mem_range() [174/181] x86/setup: simplify initrd relocation and reservation [175/181] x86/setup: simplify reserve_crashkernel() [176/181] memblock: remove unused memblock_mem_size() [177/181] memblock: implement for_each_reserved_mem_region() using __next_mem_region() [178/181] memblock: use separate iterators for memory and reserved regions [179/181] mm, oom_adj: don't loop through tasks in __set_oom_adj when not necessary [180/181] mm/migrate: remove cpages-- in migrate_vma_finalize() [181/181] mm/migrate: remove obsolete comment about device public

[119/181] docs/vm: fix 'mm_count' vs 'mm_users' counter confusion

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