acrn-kernel/mm
Alison Schofield ca4a1c00be x86/numa: Fix the address overlap check in numa_fill_memblks()
[ Upstream commit 9b99c17f7510bed2adbe17751fb8abddba5620bc ]

numa_fill_memblks() fills in the gaps in numa_meminfo memblks over a
physical address range. To do so, it first creates a list of existing
memblks that overlap that address range. The issue is that it is off
by one when comparing to the end of the address range, so memblks
that do not overlap are selected.

The impact of selecting a memblk that does not actually overlap is
that an existing memblk may be filled when the expected action is to
do nothing and return NUMA_NO_MEMBLK to the caller. The caller can
then add a new NUMA node and memblk.

Replace the broken open-coded search for address overlap with the
memblock helper memblock_addrs_overlap(). Update the kernel doc
and in code comments.

Suggested by: "Huang, Ying" <ying.huang@intel.com>

Fixes: 8f012db27c95 ("x86/numa: Introduce numa_fill_memblks()")
Signed-off-by: Alison Schofield <alison.schofield@intel.com>
Acked-by: Mike Rapoport (IBM) <rppt@kernel.org>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Link: https://lore.kernel.org/r/10a3e6109c34c21a8dd4c513cf63df63481a2b07.1705085543.git.alison.schofield@intel.com
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-03-01 13:26:36 +01:00
..
damon mm/damon/lru_sort: fix quota status loss due to online tunings 2024-03-01 13:26:32 +01:00
kasan kasan: disable kasan_non_canonical_hook() for HW tags 2024-01-01 12:38:52 +00:00
kfence mm,kfence: decouple kfence from page granularity mapping judgement 2023-12-03 07:32:08 +01:00
kmsan mm: kmsan: handle alloc failures in kmsan_vmap_pages_range_noflush() 2023-04-26 14:28:41 +02:00
Kconfig mm: introduce new 'lock_mm_and_find_vma()' page fault helper 2023-07-01 13:16:24 +02:00
Kconfig.debug mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM 2023-06-14 11:15:29 +02:00
Makefile
backing-dev.c writeback, cgroup: fix null-ptr-deref write in bdi_split_work_to_wbs 2023-04-26 14:28:39 +02:00
balloon_compaction.c
bootmem_info.c
cma.c mm/cma: use nth_page() in place of direct struct page manipulation 2023-11-28 17:07:14 +00:00
cma.h
cma_debug.c
cma_sysfs.c
compaction.c
debug.c
debug_page_ref.c
debug_vm_pgtable.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c
filemap.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
folio-compat.c
frontswap.c
gup.c mm: always expand the stack with the mmap write lock held 2023-07-01 13:16:25 +02:00
gup_test.c
gup_test.h
highmem.c
hmm.c
huge_memory.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
hugetlb.c hugetlb: fix null-ptr-deref in hugetlb_vma_lock_write 2023-12-13 18:39:20 +01:00
hugetlb_cgroup.c
hugetlb_vmemmap.c mm: hugetlb_vmemmap: fix a race between vmemmap pmd split 2023-09-19 12:27:56 +02:00
hugetlb_vmemmap.h
hwpoison-inject.c
init-mm.c
internal.h mm, netfs, fscache: stop read optimisation when folio removed from pagecache 2024-01-10 17:10:31 +01:00
interval_tree.c
io-mapping.c
ioremap.c
khugepaged.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
kmemleak.c
ksm.c mm/ksm: fix race with VMA iteration and mm_struct teardown 2023-03-30 12:49:29 +02:00
list_lru.c
maccess.c mm: Fix copy_from_user_nofault(). 2023-06-28 11:12:17 +02:00
madvise.c madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check 2023-08-30 16:11:11 +02:00
mapping_dirty_helpers.c
memblock.c x86/numa: Fix the address overlap check in numa_fill_memblks() 2024-03-01 13:26:36 +01:00
memcontrol.c mm: memcontrol: clarify swapaccount=0 deprecation warning 2024-03-01 13:26:32 +01:00
memfd.c memfd: check for non-NULL file_seals in memfd_create() syscall 2023-06-28 11:12:27 +02:00
memory-failure.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
memory-tiers.c memory tier: release the new_memtier in find_create_memory_tier() 2023-03-10 09:34:27 +01:00
memory.c mm/swap: fix race when skipping swapcache 2024-03-01 13:26:32 +01:00
memory_hotplug.c mm/memory_hotplug: fix error handling in add_memory_resource() 2024-01-10 17:10:33 +01:00
mempolicy.c mm/mempolicy: fix set_mempolicy_home_node() previous VMA pointer 2023-11-08 14:11:02 +01:00
mempool.c
memremap.c
memtest.c
migrate.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
migrate_device.c
mincore.c mm: teach mincore_hugetlb about pte markers 2023-03-22 13:34:03 +01:00
mlock.c
mm_init.c
mm_slot.h
mmap.c mmap: fix error paths with dup_anon_vma() 2023-11-08 14:11:03 +01:00
mmap_lock.c
mmu_gather.c
mmu_notifier.c
mmzone.c
mprotect.c
mremap.c
msync.c
nommu.c xtensa: fix lock_mm_and_find_vma in case VMA not found 2023-07-05 18:27:37 +01:00
oom_kill.c
page-writeback.c mm/writeback: fix possible divide-by-zero in wb_dirty_limits(), again 2024-02-23 09:12:32 +01:00
page_alloc.c mm: page_alloc: unreserve highatomic page blocks before oom 2024-01-31 16:17:03 -08:00
page_counter.c
page_ext.c
page_idle.c
page_io.c
page_isolation.c
page_owner.c
page_poison.c
page_reporting.c
page_reporting.h
page_table_check.c mm: page_table_check: Ensure user pages are not slab pages 2023-06-14 11:15:29 +02:00
page_vma_mapped.c
pagewalk.c
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c
pgalloc-track.h
pgtable-generic.c
process_vm_access.c
ptdump.c
readahead.c vfs: fix readahead(2) on block devices 2023-11-20 11:51:50 +01:00
rmap.c
rodata_test.c
secretmem.c
shmem.c mm/shmem: fix race in shmem_undo_range w/THP 2023-12-20 17:00:26 +01:00
shrinker_debug.c
shuffle.c
shuffle.h
slab.c mm/slab: Fix undefined init_cache_node_node() for NUMA and !SMP 2023-03-30 12:49:23 +02:00
slab.h
slab_common.c mm/slab_common: fix slab_caches list corruption after kmem_cache_destroy() 2023-10-06 14:57:03 +02:00
slob.c
slub.c
sparse-vmemmap.c
sparse.c mm/sparsemem: fix race in accessing memory_section->usage 2024-01-31 16:17:02 -08:00
swap.c
swap.h mm/swap: fix race when skipping swapcache 2024-03-01 13:26:32 +01:00
swap_cgroup.c
swap_slots.c
swap_state.c
swapfile.c mm/swap: fix race when skipping swapcache 2024-03-01 13:26:32 +01:00
truncate.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
usercopy.c mm: Fix copy_from_user_nofault(). 2023-06-28 11:12:17 +02:00
userfaultfd.c userfaultfd: fix mmap_changing checking in mfill_atomic_hugetlb 2024-02-23 09:12:51 +01:00
util.c rcu: dump vmalloc memory info safely 2023-09-13 09:42:59 +02:00
vmalloc.c mm/vmalloc: add a safer version of find_vm_area() for debug 2023-09-13 09:43:00 +02:00
vmpressure.c net-memcg: Fix scope of sockmem pressure indicators 2023-09-13 09:42:33 +02:00
vmscan.c mm: merge folio_has_private()/filemap_release_folio() call pairs 2024-01-10 17:10:31 +01:00
vmstat.c
workingset.c mm/mglru: fix underprotected page cache 2023-12-20 17:00:26 +01:00
z3fold.c
zbud.c
zpool.c
zsmalloc.c zsmalloc: allow only one active pool compaction context 2023-08-23 17:52:40 +02:00
zswap.c zswap: do not shrink if cgroup may not zswap 2023-06-21 16:00:54 +02:00