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linux/mm
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David Hildenbrand a11b941924 mm/memory_hotplug.c: simplify calculation of number of pages in __remove_pages() 
In commit 52fb87c81f ("mm/memory_hotplug: cleanup __remove_pages()"), we
cleaned up __remove_pages(), and introduced a shorter variant to calculate
the number of pages to the next section boundary.

Turns out we can make this calculation easier to read.  We always want to
have the number of pages (> 0) to the next section boundary, starting from
the current pfn.

We'll clean up __remove_pages() in a follow-up patch and directly make use
of this computation.

Suggested-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Baoquan He <bhe@redhat.com>
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Link: http://lkml.kernel.org/r/20200228095819.10750-2-david@redhat.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-04-07 10:43:40 -07:00
..
kasan kasan: detect negative size in memory operation function 2020-04-02 09:35:30 -07:00
backing-dev.c
balloon_compaction.c
cleancache.c
cma.c
cma.h
cma_debug.c
compaction.c mm: code cleanup for MADV_FREE 2020-04-07 10:43:38 -07:00
debug.c mm: dump_page(): additional diagnostics for huge pinned pages 2020-04-02 09:35:27 -07:00
debug_page_ref.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c mm: allow VM_FAULT_RETRY for multiple times 2020-04-02 09:35:30 -07:00
frame_vector.c
frontswap.c
gup.c mm: code cleanup for MADV_FREE 2020-04-07 10:43:38 -07:00
gup_benchmark.c mm/gup_benchmark: support pin_user_pages() and related calls 2020-04-02 09:35:27 -07:00
highmem.c
hmm.c mm/hmm: return error for non-vma snapshots 2020-03-30 16:58:36 -03:00
huge_memory.c userfaultfd: wp: support swap and page migration 2020-04-07 10:43:39 -07:00
hugetlb.c mm/hugetlb: remove unnecessary memory fetch in PageHeadHuge() 2020-04-02 09:35:32 -07:00
hugetlb_cgroup.c hugetlb_cgroup: add accounting for shared mappings 2020-04-02 09:35:32 -07:00
hwpoison-inject.c
init-mm.c
internal.h mm: add function __putback_isolated_page 2020-04-07 10:43:38 -07:00
interval_tree.c
Kconfig mm: introduce Reported pages 2020-04-07 10:43:38 -07:00
Kconfig.debug
khugepaged.c khugepaged: skip collapse if uffd-wp detected 2020-04-07 10:43:39 -07:00
kmemleak-test.c
kmemleak.c mm/kmemleak.c: use address-of operator on section symbols 2020-04-02 09:35:26 -07:00
ksm.c mm/ksm.c: update get_user_pages() argument in comment 2020-04-07 10:43:38 -07:00
list_lru.c mm: memcg/slab: use mem_cgroup_from_obj() 2020-04-02 09:35:28 -07:00
maccess.c
madvise.c mm: do not allow MADV_PAGEOUT for CoW pages 2020-03-21 18:56:06 -07:00
Makefile mm: introduce Reported pages 2020-04-07 10:43:38 -07:00
mapping_dirty_helpers.c mm/mapping_dirty_helpers: update huge page-table entry callbacks 2020-04-02 09:35:29 -07:00
memblock.c mm/memblock.c: remove redundant assignment to variable max_addr 2020-04-02 09:35:32 -07:00
memcontrol.c mm, memcg: bypass high reclaim iteration for cgroup hierarchy root 2020-04-07 10:43:37 -07:00
memfd.c
memory-failure.c mm: code cleanup for MADV_FREE 2020-04-07 10:43:38 -07:00
memory.c userfaultfd: wp: support swap and page migration 2020-04-07 10:43:39 -07:00
memory_hotplug.c mm/memory_hotplug.c: simplify calculation of number of pages in __remove_pages() 2020-04-07 10:43:40 -07:00
mempolicy.c mm: merge parameters for change_protection() 2020-04-07 10:43:39 -07:00
mempool.c
memremap.c memremap: add an owner field to struct dev_pagemap 2020-03-26 14:33:37 -03:00
memtest.c
migrate.c userfaultfd: wp: support swap and page migration 2020-04-07 10:43:39 -07:00
mincore.c
mlock.c
mm_init.c
mmap.c mm/vma: make vma_is_accessible() available for general use 2020-04-07 10:43:37 -07:00
mmu_context.c
mmu_gather.c
mmu_notifier.c mm/mmu_notifier: silence PROVE_RCU_LIST warnings 2020-03-21 18:56:06 -07:00
mmzone.c
mprotect.c userfaultfd: wp: support swap and page migration 2020-04-07 10:43:39 -07:00
mremap.c mm/mremap: add MREMAP_DONTUNMAP to mremap() 2020-04-02 09:35:30 -07:00
msync.c
nommu.c x86/mm: split vmalloc_sync_all() 2020-03-21 18:56:06 -07:00
oom_kill.c
page-writeback.c mm/gup/writeback: add callbacks for inaccessible pages 2020-04-02 09:35:27 -07:00
page_alloc.c mm: introduce Reported pages 2020-04-07 10:43:38 -07:00
page_counter.c mm, memcg: prevent memory.min load/store tearing 2020-04-02 09:35:29 -07:00
page_ext.c mm/page_ext.c: drop pfn_present() check when onlining 2020-04-07 10:43:40 -07:00
page_idle.c
page_io.c
page_isolation.c mm: add function __putback_isolated_page 2020-04-07 10:43:38 -07:00
page_owner.c
page_poison.c
page_reporting.c mm/page_reporting: add budget limit on how many pages can be reported per pass 2020-04-07 10:43:39 -07:00
page_reporting.h mm: introduce Reported pages 2020-04-07 10:43:38 -07:00
page_vma_mapped.c
pagewalk.c
percpu-internal.h
percpu-km.c
percpu-stats.c percpu: update copyright emails to dennis@kernel.org 2020-04-01 10:09:12 -07:00
percpu-vm.c
percpu.c percpu: update copyright emails to dennis@kernel.org 2020-04-01 10:09:12 -07:00
pgtable-generic.c
process_vm_access.c mm: docs: Fix a comment in process_vm_rw_core 2020-03-25 10:04:01 -05:00
ptdump.c
readahead.c
rmap.c userfaultfd: wp: support swap and page migration 2020-04-07 10:43:39 -07:00
rodata_test.c
shmem.c mm: remove CONFIG_TRANSPARENT_HUGE_PAGECACHE 2020-04-07 10:43:38 -07:00
shuffle.c mm: adjust shuffle code to allow for future coalescing 2020-04-07 10:43:38 -07:00
shuffle.h mm: adjust shuffle code to allow for future coalescing 2020-04-07 10:43:38 -07:00
slab.c
slab.h mm: kmem: rename (__)memcg_kmem_(un)charge_memcg() to __memcg_kmem_(un)charge() 2020-04-02 09:35:28 -07:00
slab_common.c mm, memcg: fix build error around the usage of kmem_caches 2020-04-02 09:35:28 -07:00
slob.c
slub.c slub: relocate freelist pointer to middle of object 2020-04-02 09:35:26 -07:00
sparse-vmemmap.c
sparse.c mm/sparse.c: allocate memmap preferring the given node 2020-04-02 09:35:30 -07:00
swap.c mm: code cleanup for MADV_FREE 2020-04-07 10:43:38 -07:00
swap_cgroup.c
swap_slots.c mm/swap_slots.c: assign|reset cache slot by value directly 2020-04-02 09:35:27 -07:00
swap_state.c mm/swap_state.c: use the same way to count page in [add_to|delete_from]_swap_cache 2020-04-02 09:35:28 -07:00
swapfile.c mm/swapfile: fix data races in try_to_unuse() 2020-04-02 09:35:27 -07:00
truncate.c
usercopy.c
userfaultfd.c userfaultfd: wp: support write protection for userfault vma range 2020-04-07 10:43:39 -07:00
util.c
vmacache.c
vmalloc.c mm/vmalloc: fix a typo in comment 2020-04-07 10:43:38 -07:00
vmpressure.c mm: vmpressure: use mem_cgroup_is_root API 2020-04-02 09:35:31 -07:00
vmscan.c mm: code cleanup for MADV_FREE 2020-04-07 10:43:38 -07:00
vmstat.c mm, thp: track fallbacks due to failed memcg charges separately 2020-04-07 10:43:38 -07:00
workingset.c
z3fold.c mm/z3fold.c: do not include rwlock.h directly 2020-03-06 07:06:09 -06:00
zbud.c
zpool.c
zsmalloc.c
zswap.c