Mel Gorman c572e4888a mm/page_alloc: always attempt to allocate at least one page during bulk allocation ... Peter Pavlisko reported the following problem on kernel bugzilla 216007. When I try to extract an uncompressed tar archive (2.6 milion files, 760.3 GiB in size) on newly created (empty) XFS file system, after first low tens of gigabytes extracted the process hangs in iowait indefinitely. One CPU core is 100% occupied with iowait, the other CPU core is idle (on 2-core Intel Celeron G1610T). It was bisected to c9fa563072 ("xfs: use alloc_pages_bulk_array() for buffers") but XFS is only the messenger. The problem is that nothing is waking kswapd to reclaim some pages at a time the PCP lists cannot be refilled until some reclaim happens. The bulk allocator checks that there are some pages in the array and the original intent was that a bulk allocator did not necessarily need all the requested pages and it was best to return as quickly as possible. This was fine for the first user of the API but both NFS and XFS require the requested number of pages be available before making progress. Both could be adjusted to call the page allocator directly if a bulk allocation fails but it puts a burden on users of the API. Adjust the semantics to attempt at least one allocation via __alloc_pages() before returning so kswapd is woken if necessary. It was reported via bugzilla that the patch addressed the problem and that the tar extraction completed successfully. This may also address bug 215975 but has yet to be confirmed. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=216007 BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=215975 Link: https://lkml.kernel.org/r/20220526091210.GC3441@techsingularity.net Fixes: 387ba26fb1 ("mm/page_alloc: add a bulk page allocator") Signed-off-by: Mel Gorman <mgorman@techsingularity.net> Cc: "Darrick J. Wong" <djwong@kernel.org> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Cc: Chuck Lever <chuck.lever@oracle.com> Cc: <stable@vger.kernel.org> [5.13+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2022-05-27 08:55:17 -07:00
..
damon	mm/damon: prevent activated scheme from sleeping by deactivated schemes	2022-04-01 11:46:09 -07:00
kasan	kasan: prevent cpu_quarantine corruption when CPU offline and cache shrink occur at same time	2022-04-27 13:28:48 -07:00
kfence	mm/kfence: reset PG_slab and memcg_data before freeing __kfence_pool	2022-05-09 17:34:29 -07:00
backing-dev.c	remove congestion tracking framework	2022-03-22 15:57:01 -07:00
balloon_compaction.c	mm/balloon_compaction: make balloon page compaction callbacks static	2022-03-28 16:52:57 -04:00
bootmem_info.c	bootmem: Use page->index instead of page->freelist	2022-01-06 12:27:03 +01:00
cma_debug.c
cma_sysfs.c
cma.c	Revert "mm/cma.c: remove redundant cma_mutex lock"	2022-05-13 15:11:26 -07:00
cma.h	mm/cma: provide option to opt out from exposing pages on activation failure	2022-03-22 15:57:09 -07:00
compaction.c	mm: compaction: fix compiler warning when CONFIG_COMPACTION=n	2022-04-15 14:49:55 -07:00
debug_page_ref.c
debug_vm_pgtable.c	mm/debug_vm_pgtable: remove pte entry from the page table	2022-02-04 09:25:04 -08:00
debug.c	mm: unexport page_init_poison	2022-03-24 19:06:45 -07:00
dmapool.c	mm/dmapool.c: revert "make dma pool to use kmalloc_node"	2022-01-15 16:30:28 +02:00
early_ioremap.c	mm/early_ioremap: declare early_memremap_pgprot_adjust()	2022-03-22 15:57:11 -07:00
fadvise.c	remove inode_congested()	2022-03-22 15:57:01 -07:00
failslab.c
filemap.c	tmpfs: fix regressions from wider use of ZERO_PAGE	2022-04-15 14:49:54 -07:00
folio-compat.c	mm/rmap: Convert rmap_walk() to take a folio	2022-03-21 13:01:35 -04:00
frontswap.c	frontswap: remove support for multiple ops	2022-01-22 08:33:38 +02:00
gup_test.c
gup_test.h
gup.c	mm/munlock: add lru_add_drain() to fix memcg_stat_test	2022-04-01 11:46:09 -07:00
highmem.c	highmem: fix checks in __kmap_local_sched_{in,out}	2022-04-08 14:20:36 -10:00
hmm.c	mm/hmm.c: remove unneeded local variable ret	2022-03-22 15:57:12 -07:00
huge_memory.c	mm/huge_memory: do not overkill when splitting huge_zero_page	2022-04-28 23:14:43 -07:00
hugetlb_cgroup.c	hugetlb: add hugetlb.*.numa_stat file	2022-01-15 16:30:29 +02:00
hugetlb_vmemmap.c	mm: hugetlb: replace hugetlb_free_vmemmap_enabled with a static_key	2022-03-22 15:57:08 -07:00
hugetlb_vmemmap.h	mm: hugetlb: introduce nr_free_vmemmap_pages in the struct hstate	2021-06-30 20:47:25 -07:00
hugetlb.c	hugetlb: fix huge_pmd_unshare address update	2022-05-27 08:55:17 -07:00
hwpoison-inject.c	mm/hwpoison: avoid the impact of hwpoison_filter() return value on mce handler	2022-03-22 15:57:07 -07:00
init-mm.c	kernel/fork: Initialize mm's PASID	2022-02-14 19:51:47 +01:00
internal.h	mm/munlock: protect the per-CPU pagevec by a local_lock_t	2022-04-01 11:46:09 -07:00
interval_tree.c
io-mapping.c
ioremap.c	mm: move ioremap_page_range to vmalloc.c	2021-09-08 11:50:24 -07:00
Kconfig	mm: generalize ARCH_HAS_FILTER_PGPROT	2022-03-24 19:06:51 -07:00
Kconfig.debug	mm: page table check	2022-01-15 16:30:28 +02:00
khugepaged.c	mm/khugepaged: remove reuse_swap_page() usage	2022-03-24 19:06:51 -07:00
kmemleak.c	mm: kmemleak: take a full lowmem check in kmemleak_*_phys()	2022-04-15 14:49:56 -07:00
ksm.c	Folio changes for 5.18	2022-03-22 17:03:12 -07:00
list_lru.c	mm/list_lru.c: revert "mm/list_lru: optimize memcg_reparent_list_lru_node()"	2022-04-08 14:20:36 -10:00
maccess.c	asm-generic updates for 5.18	2022-03-23 18:03:08 -07:00
madvise.c	Revert "mm: madvise: skip unmapped vma holes passed to process_madvise"	2022-04-01 11:46:09 -07:00
Makefile	mm: move the migrate_vma_* device migration code into its own file	2022-03-03 12:47:33 -05:00
mapping_dirty_helpers.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
memblock.c	memblock: test suite and a small cleanup	2022-03-27 13:36:06 -07:00
memcontrol.c	memcg: sync flush only if periodic flush is delayed	2022-04-21 20:01:09 -07:00
memfd.c	memfd: fix F_SEAL_WRITE after shmem huge page allocated	2022-03-05 11:08:32 -08:00
memory_hotplug.c	Folio changes for 5.18	2022-03-22 17:03:12 -07:00
memory-failure.c	mm/hwpoison: use pr_err() instead of dump_page() in get_any_page()	2022-04-28 23:14:44 -07:00
memory.c	mm,hwpoison: unmap poisoned page before invalidation	2022-04-01 11:46:09 -07:00
mempolicy.c	Merge branch 'akpm' (patches from Andrew)	2022-04-08 14:31:41 -10:00
mempool.c	mm: remove spurious blkdev.h includes	2021-10-18 06:17:01 -06:00
memremap.c	mm: delete __ClearPageWaiters()	2022-03-24 19:06:45 -07:00
memtest.c
migrate_device.c	mm/migrate: Convert remove_migration_ptes() to folios	2022-03-21 13:01:35 -04:00
migrate.c	mm: migrate: use thp_order instead of HPAGE_PMD_ORDER for new page allocation.	2022-04-08 14:20:36 -10:00
mincore.c
mlock.c	mm/munlock: protect the per-CPU pagevec by a local_lock_t	2022-04-01 11:46:09 -07:00
mm_init.c
mmap_lock.c	mm: mmap_lock: fix disabling preemption directly	2021-07-23 17:43:28 -07:00
mmap.c	mm, hugetlb: allow for "high" userspace addresses	2022-04-21 20:01:09 -07:00
mmu_gather.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
mmu_notifier.c	mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove()	2022-04-21 20:01:10 -07:00
mmzone.c	Folio changes for 5.18	2022-03-22 17:03:12 -07:00
mprotect.c	memory tiering: skip to scan fast memory	2022-03-22 15:57:09 -07:00
mremap.c	mm: mremap: fix sign for EFAULT error return value	2022-05-09 17:34:28 -07:00
msync.c
nommu.c	no-MMU: expose vmalloc_huge() for alloc_large_system_hash()	2022-04-25 10:11:49 -07:00
oom_kill.c	oom_kill.c: futex: delay the OOM reaper to allow time for proper futex cleanup	2022-04-21 20:01:10 -07:00
page_alloc.c	mm/page_alloc: always attempt to allocate at least one page during bulk allocation	2022-05-27 08:55:17 -07:00
page_counter.c	mm/page_counter: remove an incorrect call to propagate_protected_usage()	2022-01-15 16:30:27 +02:00
page_ext.c	mm: make some vars and functions static or __init	2022-01-15 16:30:31 +02:00
page_idle.c	mm/rmap: Constify the rmap_walk_control argument	2022-03-21 13:01:35 -04:00
page_io.c	mm: fix unexpected zeroed page mapping with zram swap	2022-04-15 14:49:55 -07:00
page_isolation.c	Revert "mm/page_isolation: unset migratetype directly for non Buddy page"	2022-02-04 09:25:04 -08:00
page_owner.c	mm/page_owner.c: record tgid	2022-03-24 19:06:44 -07:00
page_poison.c
page_reporting.c
page_reporting.h
page_table_check.c	mm/page_table_check.c: use strtobool for param parsing	2022-03-22 15:57:11 -07:00
page_vma_mapped.c	mm/rmap: Fix handling of hugetlbfs pages in page_vma_mapped_walk	2022-04-07 10:11:20 -04:00
page-writeback.c	mm: warn on deleting redirtied only if accounted	2022-03-24 19:06:51 -07:00
pagewalk.c
percpu-internal.h	mm: memcg/percpu: account extra objcg space to memory cgroups	2022-01-15 16:30:31 +02:00
percpu-km.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu-stats.c	mm: use vmalloc_array and vcalloc for array allocations	2022-03-08 09:30:46 -05:00
percpu-vm.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu.c	bitmap patches for 5.17-rc1	2022-01-23 06:20:44 +02:00
pgalloc-track.h
pgtable-generic.c	mm: move tlb_flush_pending inline helpers to mm_inline.h	2022-01-15 16:30:27 +02:00
process_vm_access.c
ptdump.c	mm: sparsemem: use page table lock to protect kernel pmd operations	2022-03-22 15:57:08 -07:00
readahead.c	readahead: Update comments	2022-04-01 14:40:42 -04:00
rmap.c	mm/munlock: protect the per-CPU pagevec by a local_lock_t	2022-04-01 11:46:09 -07:00
rodata_test.c
secretmem.c	mm/secretmem: fix panic when growing a memfd_secret	2022-04-15 14:49:54 -07:00
shmem.c	tmpfs: fix regressions from wider use of ZERO_PAGE	2022-04-15 14:49:54 -07:00
shuffle.c
shuffle.h
slab_common.c	mm, kfence: support kmem_dump_obj() for KFENCE objects	2022-04-15 14:49:55 -07:00
slab.c	mm, kfence: support kmem_dump_obj() for KFENCE objects	2022-04-15 14:49:55 -07:00
slab.h	mm, kfence: support kmem_dump_obj() for KFENCE objects	2022-04-15 14:49:55 -07:00
slob.c	mm, kfence: support kmem_dump_obj() for KFENCE objects	2022-04-15 14:49:55 -07:00
slub.c	mm, kfence: support kmem_dump_obj() for KFENCE objects	2022-04-15 14:49:55 -07:00
sparse-vmemmap.c	mm: sparsemem: move vmemmap related to HugeTLB to CONFIG_HUGETLB_PAGE_FREE_VMEMMAP	2022-03-22 15:57:08 -07:00
sparse.c	mm/sparse: make mminit_validate_memmodel_limits() static	2022-03-22 15:57:05 -07:00
swap_cgroup.c	mm: use vmalloc_array and vcalloc for array allocations	2022-03-08 09:30:46 -05:00
swap_slots.c	treewide: Add missing includes masked by cgroup -> bpf dependency	2021-12-03 10:58:13 -08:00
swap_state.c	Filesystem folio changes for 5.18	2022-03-22 18:26:56 -07:00
swap.c	mm/munlock: protect the per-CPU pagevec by a local_lock_t	2022-04-01 11:46:09 -07:00
swapfile.c	mm/swapfile: remove stale reuse_swap_page()	2022-03-24 19:06:51 -07:00
truncate.c	Filesystem folio changes for 5.18	2022-03-22 18:26:56 -07:00
usercopy.c	Merge branch 'akpm' (patches from Andrew)	2022-03-22 16:11:53 -07:00
userfaultfd.c	userfaultfd: mark uffd_wp regardless of VM_WRITE flag	2022-04-21 20:01:09 -07:00
util.c	kvmalloc: use vmalloc_huge for vmalloc allocations	2022-04-24 10:05:38 -07:00
vmacache.c
vmalloc.c	mm/vmalloc: huge vmalloc backing pages should be split rather than compound	2022-04-22 09:20:16 -07:00
vmpressure.c	mm/vmpressure: fix data-race with memcg->socket_pressure	2021-11-06 13:30:40 -07:00
vmscan.c	Folio changes for 5.18	2022-03-22 17:03:12 -07:00
vmstat.c	mm: only re-generate demotion targets when a numa node changes its N_CPU state	2022-03-22 15:57:11 -07:00
workingset.c	memcg: sync flush only if periodic flush is delayed	2022-04-21 20:01:09 -07:00
z3fold.c	mm/z3fold: add kerneldoc fields for z3fold_pool	2021-07-01 11:06:03 -07:00
zbud.c	mm/zbud: add kerneldoc fields for zbud_pool	2021-07-01 11:06:03 -07:00
zpool.c	zpool: remove the list of pools_head	2022-01-15 16:30:31 +02:00
zsmalloc.c	zsmalloc: fix races between asynchronous zspage free and page migration	2022-05-13 15:11:26 -07:00
zswap.c	mm/zswap.c: allow handling just same-value filled pages	2022-03-22 15:57:11 -07:00