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Vijay Balakrishna 189394cf5e mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged 
commit 4aab2be098 upstream.

When memory is hotplug added or removed the min_free_kbytes should be
recalculated based on what is expected by khugepaged.  Currently after
hotplug, min_free_kbytes will be set to a lower default and higher
default set when THP enabled is lost.

This change restores min_free_kbytes as expected for THP consumers.

[vijayb@linux.microsoft.com: v5]
  Link: https://lkml.kernel.org/r/1601398153-5517-1-git-send-email-vijayb@linux.microsoft.com

Fixes: f000565adb ("thp: set recommended min free kbytes")
Signed-off-by: Vijay Balakrishna <vijayb@linux.microsoft.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Cc: Allen Pais <apais@microsoft.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Song Liu <songliubraving@fb.com>
Cc: <stable@vger.kernel.org>
Link: https://lkml.kernel.org/r/1600305709-2319-2-git-send-email-vijayb@linux.microsoft.com
Link: https://lkml.kernel.org/r/1600204258-13683-1-git-send-email-vijayb@linux.microsoft.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-14 09:48:17 +02:00
..
kasan
kasan: avoid -Wmaybe-uninitialized warning
2019-05-08 07:19:07 +02:00
backing-dev.c
writeback: synchronize sync(2) against cgroup writeback membership switches
2019-05-21 18:49:01 +02:00
balloon_compaction.c
…
bootmem.c
…
cleancache.c
…
cma_debug.c
mm/cma_debug.c: fix the break condition in cma_maxchunk_get()
2019-06-22 08:17:12 +02:00
cma.c
mm/cma.c: fail if fixed declaration can't be honored
2019-08-06 18:29:37 +02:00
cma.h
…
compaction.c
…
debug_page_ref.c
…
debug.c
…
dmapool.c
…
early_ioremap.c
…
fadvise.c
…
failslab.c
…
filemap.c
mm/filemap.c: clear page error before actual read
2020-10-01 20:40:11 +02:00
frame_vector.c
mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'
2018-11-10 07:42:52 -08:00
frontswap.c
…
gup.c
mm: prevent get_user_pages() from overflowing page refcount
2019-06-11 12:22:45 +02:00
highmem.c
…
huge_memory.c
mm: thp: make the THP mapcount atomic against __split_huge_pmd_locked()
2020-06-20 10:24:19 +02:00
hugetlb_cgroup.c
mm: hugetlb: switch to css_tryget() in hugetlb_cgroup_charge_cgroup()
2019-11-25 09:51:58 +01:00
hugetlb.c
mm/hugetlb: fix a race between hugetlb sysctl handlers
2020-09-12 11:47:38 +02:00
hwpoison-inject.c
…
init-mm.c
…
internal.h
vmscan: return NODE_RECLAIM_NOSCAN in node_reclaim() when CONFIG_NUMA is n
2019-12-05 15:35:02 +01:00
interval_tree.c
…
Kconfig
…
Kconfig.debug
…
khugepaged.c
mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged
2020-10-14 09:48:17 +02:00
kmemcheck.c
…
kmemleak-test.c
…
kmemleak.c
mm/kmemleak.c: fix check for softirq context
2019-08-04 09:33:41 +02:00
ksm.c
mm/ksm.c: don't WARN if page is still mapped in remove_stable_node()
2019-11-28 18:28:09 +01:00
list_lru.c
mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node
2019-06-22 08:17:18 +02:00
maccess.c
uaccess: Add non-pagefault user-space write function
2020-09-12 11:47:35 +02:00
madvise.c
mm: madvise(MADV_DODUMP): allow hugetlbfs pages
2018-10-10 08:53:20 +02:00
Makefile
…
memblock.c
…
memcontrol.c
mm/memcg: fix refcount error while moving and swapping
2020-07-31 16:44:05 +02:00
memory_hotplug.c
mm: Avoid calling build_all_zonelists_init under hotplug context
2020-08-21 11:02:11 +02:00
memory-failure.c
mm: hwpoison: fix thp split handing in soft_offline_in_use_page()
2019-03-23 13:19:49 +01:00
memory.c
mm: stop leaking PageTables
2019-02-20 10:18:34 +01:00
mempolicy.c
mm: mempolicy: require at least one nodeid for MPOL_PREFERRED
2020-04-13 10:32:54 +02:00
mempool.c
…
memtest.c
…
migrate.c
hugetlbfs: fix races and page leaks during migration
2019-03-13 14:04:54 -07:00
mincore.c
mm/mincore.c: make mincore() more conservative
2019-05-21 18:48:58 +02:00
mlock.c
mm/mlock.c: change count_mm_mlocked_page_nr return type
2019-07-10 09:55:43 +02:00
mm_init.c
…
mmap.c
mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area
2020-10-01 20:40:11 +02:00
mmu_context.c
…
mmu_notifier.c
mm/mmu_notifier: use hlist_add_head_rcu()
2019-08-04 09:33:42 +02:00
mmzone.c
…
mprotect.c
…
mremap.c
mm: Fix mremap not considering huge pmd devmap
2020-06-11 09:22:20 +02:00
msync.c
…
nobootmem.c
…
nommu.c
x86/mm: split vmalloc_sync_all()
2020-04-02 17:20:26 +02:00
oom_kill.c
oom, oom_reaper: do not enqueue same task twice
2019-02-12 19:45:02 +01:00
page_alloc.c
mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged
2020-10-14 09:48:17 +02:00
page_counter.c
…
page_ext.c
mm/page_ext.c: fix an imbalance with kmemleak
2019-04-05 22:29:06 +02:00
page_idle.c
mm/page_idle.c: fix oops because end_pfn is larger than max_pfn
2019-07-10 09:55:38 +02:00
page_io.c
…
page_isolation.c
…
page_owner.c
…
page_poison.c
…
page-writeback.c
mm/page-writeback.c: avoid potential division by zero in wb_min_max_ratio()
2020-01-23 08:19:40 +01:00
pagewalk.c
mm: pagewalk: fix termination condition in walk_pte_range()
2020-10-01 20:40:06 +02:00
percpu-km.c
…
percpu-vm.c
…
percpu.c
percpu: stop printing kernel addresses
2019-04-27 09:34:47 +02:00
pgtable-generic.c
…
process_vm_access.c
…
quicklist.c
…
readahead.c
…
rmap.c
mm: migration: fix migration of huge PMD shared pages
2018-11-21 09:26:03 +01:00
shmem.c
shmem: fix possible deadlocks on shmlock_user_lock
2020-05-20 08:15:33 +02:00
slab_common.c
mm/slab: use memzero_explicit() in kzfree()
2020-06-30 15:38:44 -04:00
slab.c
mm/slab.c: fix an infinite loop in leaks_show()
2019-06-22 08:17:13 +02:00
slab.h
…
slob.c
…
slub.c
mm: slub: fix conversion of freelist_corrupted()
2020-09-12 11:47:37 +02:00
sparse-vmemmap.c
…
sparse.c
…
swap_cgroup.c
…
swap_state.c
mm: fix swap cache node allocation mask
2020-07-09 09:35:54 +02:00
swap.c
…
swapfile.c
…
truncate.c
mm: cleancache: fix corruption on missed inode invalidation
2018-12-08 13:05:09 +01:00
usercopy.c
usercopy: Avoid HIGHMEM pfn warning
2019-10-17 13:42:06 -07:00
userfaultfd.c
…
util.c
mm: page_mapped: don't assume compound page is huge or THP
2019-01-16 22:12:32 +01:00
vmacache.c
…
vmalloc.c
mm/vmalloc.c: don't dereference possible NULL pointer in __vunmap()
2020-06-03 08:16:47 +02:00
vmpressure.c
…
vmscan.c
…
vmstat.c
mm, vmstat: hide /proc/pagetypeinfo from normal users
2019-11-12 19:15:43 +01:00
workingset.c
…
z3fold.c
…
zbud.c
…
zpool.c
…
zsmalloc.c
mm/zsmalloc.c: fix the migrated zspage statistics.
2020-01-12 11:24:13 +01:00
zswap.c
…