[044/192] mm/page-writeback: update the comment of Dirty position control

From: Chi Wu <wuchi.zero@gmail.com>

DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6236161D06
Date: Mon, 28 Jun 2021 19:35:34 -0700
From: Andrew Morton <akpm@linux-foundation.org>
To: akpm@linux-foundation.org, axboe@fb.com, hcochran@kernelspring.com,
 jack@suse.cz, linux-mm@kvack.org, mm-commits@vger.kernel.org,
 mszeredi@redhat.com, sedat.dilek@gmail.com, tj@kernel.org,
 torvalds@linux-foundation.org, wuchi.zero@gmail.com
Subject: [patch 044/192] mm/page-writeback: update the comment of
 Dirty position control
Message-ID: <20210629023534.q8-pTS97e%akpm@linux-foundation.org>
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Message ID	20210629023534.q8-pTS97e%akpm@linux-foundation.org (mailing list archive)
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Headers	show Return-Path: <SRS0=4KF6=LX=kvack.org=owner-linux-mm@kernel.org> DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6236161D06 Date: Mon, 28 Jun 2021 19:35:34 -0700 From: Andrew Morton <akpm@linux-foundation.org> To: akpm@linux-foundation.org, axboe@fb.com, hcochran@kernelspring.com, jack@suse.cz, linux-mm@kvack.org, mm-commits@vger.kernel.org, mszeredi@redhat.com, sedat.dilek@gmail.com, tj@kernel.org, torvalds@linux-foundation.org, wuchi.zero@gmail.com Subject: [patch 044/192] mm/page-writeback: update the comment of Dirty position control Message-ID: <20210629023534.q8-pTS97e%akpm@linux-foundation.org> In-Reply-To: <20210628193256.008961950a714730751c1423@linux-foundation.org> User-Agent: s-nail v14.8.16 Sender: owner-linux-mm@kvack.org Precedence: bulk
Series	[001/192] mm/gup: fix try_grab_compound_head() race with split_huge_page() \| expand [001/192] mm/gup: fix try_grab_compound_head() race with split_huge_page() [002/192] mm/page_alloc: fix memory map initialization for descending nodes [003/192] mm/page_alloc: correct return value of populated elements if bulk array is populated [004/192] kthread: switch to new kerneldoc syntax for named variable macro argument [005/192] kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cance… [006/192] ia64: headers: drop duplicated words [007/192] ia64: mca_drv: fix incorrect array size calculation [008/192] streamline_config.pl: make spacing consistent [009/192] streamline_config.pl: add softtabstop=4 for vim users [010/192] scripts/spelling.txt: add more spellings to spelling.txt [011/192] ntfs: fix validity check for file name attribute [012/192] squashfs: add option to panic on errors [013/192] ocfs2: remove unnecessary INIT_LIST_HEAD() [014/192] ocfs2: fix snprintf() checking [015/192] ocfs2: remove redundant assignment to pointer queue [016/192] ocfs2: remove repeated uptodate check for buffer [017/192] ocfs2: replace simple_strtoull() with kstrtoull() [018/192] ocfs2: remove redundant initialization of variable ret [019/192] kernel: watchdog: modify the explanation related to watchdog thread [020/192] doc: watchdog: modify the explanation related to watchdog thread [021/192] doc: watchdog: modify the doc related to "watchdog/%u" [022/192] slab: use __func__ to trace function name [023/192] kunit: make test->lock irq safe [024/192] mm/slub, kunit: add a KUnit test for SLUB debugging functionality [025/192] slub: remove resiliency_test() function [026/192] mm, slub: change run-time assertion in kmalloc_index() to compile-time [027/192] slub: restore slub_debug=- behavior [028/192] slub: actually use 'message' in restore_bytes() [029/192] slub: indicate slab_fix() uses printf formats [030/192] slub: force on no_hash_pointers when slub_debug is enabled [031/192] mm: slub: move sysfs slab alloc/free interfaces to debugfs [032/192] mm/slub: add taint after the errors are printed [033/192] mm/kmemleak: fix possible wrong memory scanning period [034/192] dax: fix ENOMEM handling in grab_mapping_entry() [035/192] tools/vm/page_owner_sort.c: check malloc() return [036/192] mm/debug_vm_pgtable: ensure THP availability via has_transparent_hugepage() [037/192] mm: mmap_lock: use local locks instead of disabling preemption [038/192] mm/page_reporting: fix code style in __page_reporting_request() [039/192] mm/page_reporting: export reporting order as module parameter [040/192] mm/page_reporting: allow driver to specify reporting order [041/192] virtio_balloon: specify page reporting order if needed [042/192] mm: page-writeback: kill get_writeback_state() comments [043/192] mm/page-writeback: Fix performance when BDI's share of ratio is 0. [044/192] mm/page-writeback: update the comment of Dirty position control [045/192] mm/page-writeback: use __this_cpu_inc() in account_page_dirtied() [046/192] writeback, cgroup: do not switch inodes with I_WILL_FREE flag [047/192] writeback, cgroup: add smp_mb() to cgroup_writeback_umount() [048/192] writeback, cgroup: increment isw_nr_in_flight before grabbing an inode [049/192] writeback, cgroup: switch to rcu_work API in inode_switch_wbs() [050/192] writeback, cgroup: keep list of inodes attached to bdi_writeback [051/192] writeback, cgroup: split out the functional part of inode_switch_wbs_work_fn() [052/192] writeback, cgroup: support switching multiple inodes at once [053/192] writeback, cgroup: release dying cgwbs by switching attached inodes [054/192] fs: unexport __set_page_dirty [055/192] fs: move ramfs_aops to libfs [056/192] mm: require ->set_page_dirty to be explicitly wired up [057/192] mm/writeback: move __set_page_dirty() to core mm [058/192] mm/writeback: use __set_page_dirty in __set_page_dirty_nobuffers [059/192] iomap: use __set_page_dirty_nobuffers [060/192] fs: remove anon_set_page_dirty() [061/192] fs: remove noop_set_page_dirty() [062/192] mm: move page dirtying prototypes from mm.h [063/192] mm/gup_benchmark: support threading [064/192] mm: gup: allow FOLL_PIN to scale in SMP [065/192] mm: gup: pack has_pinned in MMF_HAS_PINNED [066/192] mm: pagewalk: fix walk for hugepage tables [067/192] mm/swapfile: use percpu_ref to serialize against concurrent swapoff [068/192] swap: fix do_swap_page() race with swapoff [069/192] mm/swap: remove confusing checking for non_swap_entry() in swap_ra_info() [070/192] mm/shmem: fix shmem_swapin() race with swapoff [071/192] mm/swapfile: move get_swap_page_of_type() under CONFIG_HIBERNATION [072/192] mm/swap: remove unused local variable nr_shadows [073/192] mm/swap_slots.c: delete meaningless forward declarations [074/192] mm, swap: remove unnecessary smp_rmb() in swap_type_to_swap_info() [075/192] mm: free idle swap cache page after COW [076/192] swap: check mapping_empty() for swap cache before being freed [077/192] mm/memcg: move mod_objcg_state() to memcontrol.c [078/192] mm/memcg: cache vmstat data in percpu memcg_stock_pcp [079/192] mm/memcg: improve refill_obj_stock() performance [080/192] mm/memcg: optimize user context object stock access [081/192] mm: memcg/slab: properly set up gfp flags for objcg pointer array [082/192] mm: memcg/slab: create a new set of kmalloc-cg-<n> caches [083/192] mm: memcg/slab: disable cache merging for KMALLOC_NORMAL caches [084/192] mm: memcontrol: fix root_mem_cgroup charging [085/192] mm: memcontrol: fix page charging in page replacement [086/192] mm: memcontrol: bail out early when !mm in get_mem_cgroup_from_mm [087/192] mm: memcontrol: remove the pgdata parameter of mem_cgroup_page_lruvec [088/192] mm: memcontrol: simplify lruvec_holds_page_lru_lock [089/192] mm: memcontrol: rename lruvec_holds_page_lru_lock to page_matches_lruvec [090/192] mm: memcontrol: simplify the logic of objcg pinning memcg [091/192] mm: memcontrol: move obj_cgroup_uncharge_pages() out of css_set_lock [092/192] mm: vmscan: remove noinline_for_stack [093/192] memcontrol: use flexible-array member [094/192] loop: use worker per cgroup instead of kworker [095/192] mm: charge active memcg when no mm is set [096/192] loop: charge i/o to mem and blk cg [097/192] mm: memcontrol: remove trailing semicolon in macros [098/192] perf: MAP_EXECUTABLE does not indicate VM_MAYEXEC [099/192] binfmt: remove in-tree usage of MAP_EXECUTABLE [100/192] mm: ignore MAP_EXECUTABLE in ksys_mmap_pgoff() [101/192] mm/mmap.c: logic of find_vma_intersection repeated in __do_munmap [102/192] mm/mmap: introduce unlock_range() for code cleanup [103/192] mm/mmap: use find_vma_intersection() in do_mmap() for overlap [104/192] mm/memory.c: fix comment of finish_mkwrite_fault() [105/192] mm: add vma_lookup(), update find_vma_intersection() comments [106/192] drm/i915/selftests: use vma_lookup() in __igt_mmap() [107/192] arch/arc/kernel/troubleshoot: use vma_lookup() instead of find_vma() [108/192] arch/arm64/kvm: use vma_lookup() instead of find_vma_intersection() [109/192] arch/powerpc/kvm/book3s_hv_uvmem: use vma_lookup() instead of find_vma_intersection() [110/192] arch/powerpc/kvm/book3s: use vma_lookup() in kvmppc_hv_setup_htab_rma() [111/192] arch/mips/kernel/traps: use vma_lookup() instead of find_vma() [112/192] arch/m68k/kernel/sys_m68k: use vma_lookup() in sys_cacheflush() [113/192] x86/sgx: use vma_lookup() in sgx_encl_find() [114/192] virt/kvm: use vma_lookup() instead of find_vma_intersection() [115/192] vfio: use vma_lookup() instead of find_vma_intersection() [116/192] net/ipv5/tcp: use vma_lookup() in tcp_zerocopy_receive() [117/192] drm/amdgpu: use vma_lookup() in amdgpu_ttm_tt_get_user_pages() [118/192] media: videobuf2: use vma_lookup() in get_vaddr_frames() [119/192] misc/sgi-gru/grufault: use vma_lookup() in gru_find_vma() [120/192] kernel/events/uprobes: use vma_lookup() in find_active_uprobe() [121/192] lib/test_hmm: use vma_lookup() in dmirror_migrate() [122/192] mm/ksm: use vma_lookup() in find_mergeable_vma() [123/192] mm/migrate: use vma_lookup() in do_pages_stat_array() [124/192] mm/mremap: use vma_lookup() in vma_to_resize() [125/192] mm/memory.c: use vma_lookup() in __access_remote_vm() [126/192] mm/mempolicy: use vma_lookup() in __access_remote_vm() [127/192] mm: update legacy flush_tlb_* to use vma [128/192] mm: improve mprotect(R\|W) efficiency on pages referenced once [129/192] h8300: remove unused variable [130/192] mm/dmapool: use DEVICE_ATTR_RO macro [131/192] mm, tracing: unify PFN format strings [132/192] mm/page_alloc: add an alloc_pages_bulk_array_node() helper [133/192] mm/vmalloc: switch to bulk allocator in __vmalloc_area_node() [134/192] mm/vmalloc: print a warning message first on failure [135/192] mm/vmalloc: remove quoted strings split across lines [136/192] mm/vmalloc: fallback to a single page allocator [137/192] mm: vmalloc: add cond_resched() in __vunmap() [138/192] printk: introduce dump_stack_lvl() [139/192] kasan: use dump_stack_lvl(KERN_ERR) to print stacks [140/192] kasan: test: improve failure message in KUNIT_EXPECT_KASAN_FAIL() [141/192] kasan: allow an architecture to disable inline instrumentation [142/192] kasan: allow architectures to provide an outline readiness check [143/192] mm: define default MAX_PTRS_PER_* in include/pgtable.h [144/192] kasan: use MAX_PTRS_PER_* for early shadow tables [145/192] kasan: rename CONFIG_KASAN_SW_TAGS_IDENTIFY to CONFIG_KASAN_TAGS_IDENTIFY [146/192] kasan: integrate the common part of two KASAN tag-based modes [147/192] kasan: add memory corruption identification support for hardware tag-based mode [148/192] mm: report which part of mem is being freed on initmem case [149/192] mm/mmzone.h: simplify is_highmem_idx() [150/192] mm: make __dump_page static [151/192] mm/page_alloc: bail out on fatal signal during reclaim/compaction retry attempt [152/192] mm/debug: factor PagePoisoned out of __dump_page [153/192] mm/page_owner: constify dump_page_owner [154/192] mm: make compound_head const-preserving [155/192] mm: constify get_pfnblock_flags_mask and get_pfnblock_migratetype [156/192] mm: constify page_count and page_ref_count [157/192] mm: optimise nth_page for contiguous memmap [158/192] mm/page_alloc: switch to pr_debug [159/192] kbuild: skip per-CPU BTF generation for pahole v1.18-v1.21 [160/192] mm/page_alloc: split per cpu page lists and zone stats [161/192] mm/page_alloc: convert per-cpu list protection to local_lock [162/192] mm/vmstat: convert NUMA statistics to basic NUMA counters [163/192] mm/vmstat: inline NUMA event counter updates [164/192] mm/page_alloc: batch the accounting updates in the bulk allocator [165/192] mm/page_alloc: reduce duration that IRQs are disabled for VM counters [166/192] mm/page_alloc: explicitly acquire the zone lock in __free_pages_ok [167/192] mm/page_alloc: avoid conflating IRQs disabled with zone->lock [168/192] mm/page_alloc: update PGFREE outside the zone lock in __free_pages_ok [169/192] mm: page_alloc: dump migrate-failed pages only at -EBUSY [170/192] mm/page_alloc: delete vm.percpu_pagelist_fraction [171/192] mm/page_alloc: disassociate the pcp->high from pcp->batch [172/192] mm/page_alloc: adjust pcp->high after CPU hotplug events [173/192] mm/page_alloc: scale the number of pages that are batch freed [174/192] mm/page_alloc: limit the number of pages on PCP lists when reclaim is active [175/192] mm/page_alloc: introduce vm.percpu_pagelist_high_fraction [176/192] mm: drop SECTION_SHIFT in code comments [177/192] mm/page_alloc: improve memmap_pages dbg msg [178/192] mm/page_alloc: fix counting of managed_pages [179/192] mm/page_alloc: move free_the_page [180/192] alpha: remove DISCONTIGMEM and NUMA [181/192] arc: update comment about HIGHMEM implementation [182/192] arc: remove support for DISCONTIGMEM [183/192] m68k: remove support for DISCONTIGMEM [184/192] mm: remove CONFIG_DISCONTIGMEM [185/192] arch, mm: remove stale mentions of DISCONIGMEM [186/192] docs: remove description of DISCONTIGMEM [187/192] mm: replace CONFIG_NEED_MULTIPLE_NODES with CONFIG_NUMA [188/192] mm: replace CONFIG_FLAT_NODE_MEM_MAP with CONFIG_FLATMEM [189/192] mm/page_alloc: allow high-order pages to be stored on the per-cpu lists [190/192] mm/page_alloc: split pcp->high across all online CPUs for cpuless nodes [191/192] mm,hwpoison: send SIGBUS with error virutal address [192/192] mm,hwpoison: make get_hwpoison_page() call get_any_page()

[044/192] mm/page-writeback: update the comment of Dirty position control

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