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ebd6372358
kernel_optimize_test/mm
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Michal Hocko ebd6372358 hugetlb, mempolicy: fix the mbind hugetlb migration 
do_mbind migration code relies on alloc_huge_page_noerr for hugetlb
pages.  alloc_huge_page_noerr uses alloc_huge_page which is a highlevel
allocation function which has to take care of reserves, overcommit or
hugetlb cgroup accounting.  None of that is really required for the page
migration because the new page is only temporal and either will replace
the original page or it will be dropped.  This is essentially as for
other migration call paths and there shouldn't be any reason to handle
mbind in a special way.

The current implementation is even suboptimal because the migration
might fail just because the hugetlb cgroup limit is reached, or the
overcommit is saturated.

Fix this by making mbind like other hugetlb migration paths.  Add a new
migration helper alloc_huge_page_vma as a wrapper around
alloc_huge_page_nodemask with additional mempolicy handling.

alloc_huge_page_noerr has no more users and it can go.

Link: http://lkml.kernel.org/r/20180103093213.26329-7-mhocko@kernel.org
Signed-off-by: Michal Hocko <mhocko@suse.com>
Reviewed-by: Mike Kravetz <mike.kravetz@oracle.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Andrea Reale <ar@linux.vnet.ibm.com>
Cc: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Zi Yan <zi.yan@cs.rutgers.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-01-31 17:18:40 -08:00
..
kasan kasan: use %px to print addresses instead of %p 2017-11-29 12:13:16 +11:00
backing-dev.c Revert "bdi: add error handle for bdi_debug_register" 2017-12-21 10:01:30 -07:00
balloon_compaction.c virtio_balloon: fix deadlock on OOM 2017-11-14 23:57:38 +02:00
bootmem.c
cleancache.c
cma_debug.c
cma.c mm/cma.c: change pr_info to pr_err for cma_alloc fail log 2017-11-15 18:21:03 -08:00
cma.h
compaction.c mm/compaction.c: fix comment for try_to_compact_pages() 2018-01-31 17:18:39 -08:00
debug_page_ref.c
debug.c mm/debug.c: provide useful debugging information for VM_BUG 2018-01-04 16:45:09 -08:00
dmapool.c
early_ioremap.c mm/early_ioremap: Fix boot hang with earlyprintk=efi,keep 2017-12-11 14:54:44 +01:00
fadvise.c mm/fadvise: discard partial page if endbyte is also EOF 2018-01-31 17:18:39 -08:00
failslab.c
filemap.c mm/filemap.c: remove include of hardirq.h 2018-01-31 17:18:36 -08:00
frame_vector.c mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()' 2017-12-14 16:00:48 -08:00
frontswap.c
gup_benchmark.c mm: add infrastructure for get_user_pages_fast() benchmarking 2017-11-17 16:10:04 -08:00
gup.c Merge branch 'work.get_user_pages_fast' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2018-01-31 10:01:08 -08:00
highmem.c
hmm.c mm/hmm: fix uninitialized use of 'entry' in hmm_vma_walk_pmd() 2018-01-31 17:18:40 -08:00
huge_memory.c mm/thp: remove pmd_huge_split_prepare() 2018-01-31 17:18:38 -08:00
hugetlb_cgroup.c
hugetlb.c hugetlb, mempolicy: fix the mbind hugetlb migration 2018-01-31 17:18:40 -08:00
hwpoison-inject.c mm/memory_failure: Remove unused trapno from memory_failure 2018-01-23 12:17:42 -06:00
init-mm.c
internal.h Revert "mm, thp: Do not make pmd/pud dirty without a reason" 2017-11-29 09:01:01 -08:00
interval_tree.c mm/interval_tree.c: use vma_pages() helper 2018-01-31 17:18:37 -08:00
Kconfig mm: relax deferred struct page requirements 2018-01-31 17:18:36 -08:00
Kconfig.debug kmemcheck: rip it out 2017-11-15 18:21:05 -08:00
khugepaged.c mm: thp: use down_read_trylock() in khugepaged to avoid long block 2018-01-31 17:18:38 -08:00
kmemleak-test.c
kmemleak.c mm: kmemleak: remove unused hardirq.h 2018-01-31 17:18:36 -08:00
ksm.c mm/ksm: Remove now-redundant smp_read_barrier_depends() 2017-12-04 10:52:56 -08:00
list_lru.c mm/list_lru.c: mark expected switch fall-through 2017-11-15 18:21:07 -08:00
maccess.c
madvise.c mm/memory_failure: Remove unused trapno from memory_failure 2018-01-23 12:17:42 -06:00
Makefile mm: add infrastructure for get_user_pages_fast() benchmarking 2017-11-17 16:10:04 -08:00
memblock.c mm: define memblock_virt_alloc_try_nid_raw 2017-11-15 18:21:05 -08:00
memcontrol.c mm/memcontrol.c: try harder to decrease [memory,memsw].limit_in_bytes 2018-01-31 17:18:40 -08:00
memory_hotplug.c mm: memory_hotplug: remove second __nr_to_section in register_page_bootmem_info_section() 2018-01-31 17:18:37 -08:00
memory-failure.c signal/memory-failure: Use force_sig_mceerr and send_sig_mceerr 2018-01-23 12:17:48 -06:00
memory.c mm: add unmap_mapping_pages() 2018-01-31 17:18:37 -08:00
mempolicy.c hugetlb, mempolicy: fix the mbind hugetlb migration 2018-01-31 17:18:40 -08:00
mempool.c mm/mempool.c: use kmalloc_array_node() 2017-11-15 18:21:02 -08:00
memtest.c
migrate.c mm, hugetlb: do not rely on overcommit limit during migration 2018-01-31 17:18:40 -08:00
mincore.c
mlock.c mm: Eliminate cond_resched_rcu_qs() in favor of cond_resched() 2017-11-28 16:00:28 -08:00
mm_init.c
mmap.c mm, oom_reaper: fix memory corruption 2017-12-14 16:00:49 -08:00
mmu_context.c
mmu_notifier.c mm, mmu_notifier: annotate mmu notifiers with blockable invalidate callbacks 2018-01-31 17:18:38 -08:00
mmzone.c
mprotect.c mm/mprotect: add a cond_resched() inside change_pmd_range() 2018-01-04 16:45:09 -08:00
mremap.c
msync.c
nobootmem.c
nommu.c mm: add unmap_mapping_pages() 2018-01-31 17:18:37 -08:00
oom_kill.c mm, oom: avoid reaping only for mm's with blockable invalidate callbacks 2018-01-31 17:18:38 -08:00
page_alloc.c mm/page_alloc.c: fix typos in comments 2018-01-31 17:18:39 -08:00
page_counter.c
page_ext.c mm/page_ext.c: make page_ext_init a noop when CONFIG_PAGE_EXTENSION but nothing uses it 2018-01-31 17:18:39 -08:00
page_idle.c
page_io.c block: convert to bio_first_bvec_all & bio_first_page_all 2018-01-06 09:18:00 -07:00
page_isolation.c mm: distinguish CMA and MOVABLE isolation in has_unmovable_pages() 2017-11-15 18:21:02 -08:00
page_owner.c mm/page_owner.c: clean up init_pages_in_zone() 2018-01-31 17:18:39 -08:00
page_poison.c
page_vma_mapped.c mm, page_vma_mapped: Introduce pfn_in_hpage() 2018-01-22 12:15:57 -08:00
page-writeback.c Revert "mm/page-writeback.c: print a warning if the vm dirtiness settings are illogical" 2017-11-29 18:40:43 -08:00
pagewalk.c mm/pagewalk.c: report holes in hugetlb ranges 2017-11-15 13:12:08 -08:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c mm: remove __GFP_COLD 2017-11-15 18:21:06 -08:00
percpu.c percpu: hack to let the CRIS architecture to boot until they clean up 2017-11-27 12:53:12 -08:00
pgtable-generic.c mm: do not lose dirty and accessed bits in pmdp_invalidate() 2018-01-31 17:18:38 -08:00
process_vm_access.c
quicklist.c
readahead.c
rmap.c mm: remove cold parameter from free_hot_cold_page* 2017-11-15 18:21:06 -08:00
rodata_test.c
shmem.c shmem: add sealing support to hugetlb-backed memfd 2018-01-31 17:18:39 -08:00
slab_common.c mm/slab_common.c: make calculate_alignment() static 2018-01-31 17:18:35 -08:00
slab.c mm/slab.c: remove redundant assignments for slab_state 2018-01-31 17:18:35 -08:00
slab.h mm/slab_common.c: make calculate_alignment() static 2018-01-31 17:18:35 -08:00
slob.c slab, slub, slob: add slab_flags_t 2017-11-15 18:21:01 -08:00
slub.c slub: remove obsolete comments of put_cpu_partial() 2018-01-31 17:18:36 -08:00
sparse-vmemmap.c mm, sparse: do not swamp log with huge vmemmap allocation failures 2017-11-15 18:21:07 -08:00
sparse.c include/linux/mmzone.h: fix explanation of lower bits in the SPARSEMEM mem_map pointer 2018-01-31 17:18:39 -08:00
swap_cgroup.c
swap_slots.c mm/swap_slots.c: fix race conditions in swap_slots cache init 2017-11-15 18:21:03 -08:00
swap_state.c mm: remove cold parameter for release_pages 2017-11-15 18:21:06 -08:00
swap.c mm: drop hotplug lock from lru_add_drain_all() 2018-01-31 17:18:36 -08:00
swapfile.c ipc, kernel, mm: annotate ->poll() instances 2017-11-27 16:20:05 -05:00
truncate.c mm: add unmap_mapping_pages() 2018-01-31 17:18:37 -08:00
usercopy.c
userfaultfd.c
util.c new primitive: vmemdup_user() 2018-01-07 13:06:15 -05:00
vmacache.c
vmalloc.c
vmpressure.c
vmscan.c mm: pin address_space before dereferencing it while isolating an LRU page 2018-01-31 17:18:39 -08:00
vmstat.c mm, sysctl: make NUMA stats configurable 2017-11-15 18:21:07 -08:00
workingset.c mm, truncate: do not check mapping for every page being truncated 2017-11-15 18:21:06 -08:00
z3fold.c mm/z3fold.c: use kref to prevent page free/compact race 2017-11-17 16:10:00 -08:00
zbud.c
zpool.c zswap: only save zswap header when necessary 2018-01-31 17:18:39 -08:00
zsmalloc.c zsmalloc: use U suffix for negative literals being shifted 2018-01-31 17:18:39 -08:00
zswap.c zswap: only save zswap header when necessary 2018-01-31 17:18:39 -08:00