acrn-kernel/mm
Abel Wu 0f50641222 net-memcg: Fix scope of sockmem pressure indicators
[ Upstream commit ac8a529621 ]

Now there are two indicators of socket memory pressure sit inside
struct mem_cgroup, socket_pressure and tcpmem_pressure, indicating
memory reclaim pressure in memcg->memory and ->tcpmem respectively.

When in legacy mode (cgroupv1), the socket memory is charged into
->tcpmem which is independent of ->memory, so socket_pressure has
nothing to do with socket's pressure at all. Things could be worse
by taking socket_pressure into consideration in legacy mode, as a
pressure in ->memory can lead to premature reclamation/throttling
in socket.

While for the default mode (cgroupv2), the socket memory is charged
into ->memory, and ->tcpmem/->tcpmem_pressure are simply not used.

So {socket,tcpmem}_pressure are only used in default/legacy mode
respectively for indicating socket memory pressure. This patch fixes
the pieces of code that make mixed use of both.

Fixes: 8e8ae64524 ("mm: memcontrol: hook up vmpressure to socket pressure")
Signed-off-by: Abel Wu <wuyun.abel@bytedance.com>
Acked-by: Shakeel Butt <shakeelb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-13 09:42:33 +02:00
..
damon mm/damon/ops-common: atomically test and clear young on ptes and pmds 2023-07-19 16:22:11 +02:00
kasan kasan: add kasan_tag_mismatch prototype 2023-07-23 13:49:32 +02:00
kfence mm: kfence: fix handling discontiguous page 2023-04-13 16:55:30 +02:00
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
cma.h
cma_debug.c
cma_sysfs.c
compaction.c Revert "mm/compaction: fix set skip in fast_find_migrateblock" 2023-02-01 08:34:49 +01:00
debug.c
debug_page_ref.c
debug_vm_pgtable.c
dmapool.c
early_ioremap.c
fadvise.c
failslab.c mm: fix unexpected changes to {failslab|fail_page_alloc}.attr 2022-11-22 18:50:44 -08:00
filemap.c mm/filemap: fix page end in filemap_get_read_batch 2023-02-22 12:59:49 +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 highmem: fix kmap_to_page() for kmap_local_page() addresses 2022-10-12 18:51:51 -07:00
hmm.c
huge_memory.c mm/huge_memory.c: warn with pr_warn_ratelimited instead of VM_WARN_ON_ONCE_FOLIO 2023-04-26 14:28:41 +02:00
hugetlb.c hugetlb: do not clear hugetlb dtor until allocating vmemmap 2023-08-23 17:52:41 +02:00
hugetlb_cgroup.c
hugetlb_vmemmap.c mm: hugetlb_vmemmap: include missing linux/moduleparam.h 2022-11-08 15:57:23 -08:00
hugetlb_vmemmap.h
hwpoison-inject.c
init-mm.c
internal.h
interval_tree.c
io-mapping.c
ioremap.c
khugepaged.c mm/khugepaged: check again on anon uffd-wp during isolation 2023-04-26 14:28:41 +02:00
kmemleak.c mm/kmemleak: prevent soft lockup in kmemleak_scan()'s object iteration loops 2022-10-28 13:37:22 -07:00
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 Revert "mm: Always release pages to the buddy allocator in memblock_free_late()." 2023-02-22 12:59:50 +01:00
memcontrol.c mm: kmem: fix a NULL pointer dereference in obj_stock_flush_required() 2023-08-11 12:08:23 +02:00
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: memory-failure: fix unexpected return value in soft_offline_page() 2023-08-30 16:11:06 +02:00
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: call arch_swap_restore() from do_swap_page() 2023-07-19 16:21:16 +02:00
memory_hotplug.c
mempolicy.c mm/mempolicy: correctly update prev when policy is equal on mbind 2023-05-11 23:03:41 +09:00
mempool.c
memremap.c mm/memremap.c: map FS_DAX device memory as decrypted 2022-11-08 15:57:23 -08:00
memtest.c
migrate.c mm/migrate: fix wrongly apply write bit after mkdirty on sparc64 2023-02-22 12:59:49 +01:00
migrate_device.c mm/migrate_device: return number of migrating pages in args->cpages 2022-11-22 18:50:43 -08:00
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 mm/mmap: Fix extra maple tree write 2023-07-19 16:22:16 +02:00
mmap_lock.c
mmu_gather.c mm/khugepaged: fix GUP-fast interaction by sending IPI 2022-11-30 14:49:42 -08:00
mmu_notifier.c
mmzone.c
mprotect.c mm/uffd: fix warning without PTE_MARKER_UFFD_WP compiled in 2022-10-12 15:56:46 -07:00
mremap.c mm, mremap: fix mremap() expanding for vma's with vm_ops->close() 2023-02-09 11:28:22 +01:00
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
page_alloc.c mm/page_alloc: fix potential deadlock on zonelist_update_seq seqlock 2023-04-26 14:28:44 +02:00
page_counter.c
page_ext.c mm/page_exit: fix kernel doc warning in page_ext_put() 2022-11-22 18:50:41 -08:00
page_idle.c
page_io.c use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
page_isolation.c mm/page_isolation: fix clang deadcode warning 2022-10-28 13:37:22 -07:00
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 use less confusing names for iov_iter direction initializers 2023-02-09 11:28:04 +01:00
ptdump.c
readahead.c
rmap.c mm/hwpoison: convert TTU_IGNORE_HWPOISON to TTU_HWPOISON 2023-03-10 09:34:25 +01:00
rodata_test.c
secretmem.c
shmem.c tmpfs: verify {g,u}id mount options correctly 2023-09-13 09:42:27 +02:00
shrinker_debug.c mm: shrinkers: fix deadlock in shrinker debugfs 2023-02-22 12:59:46 +01:00
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: remove duplicate kernel-doc comment for ksize() 2022-11-07 17:11:27 +01:00
slob.c
slub.c treewide: use prandom_u32_max() when possible, part 1 2022-10-11 17:42:55 -06:00
sparse-vmemmap.c
sparse.c
swap.c
swap.h
swap_cgroup.c
swap_slots.c
swap_state.c
swapfile.c mm/swap: fix swap_info_struct race between swapoff and get_swap_pages() 2023-04-13 16:55:36 +02:00
truncate.c
usercopy.c mm: Fix copy_from_user_nofault(). 2023-06-28 11:12:17 +02:00
userfaultfd.c mm/shmem: use page_mapping() to detect page cache for uffd continue 2022-11-08 15:57:23 -08:00
util.c
vmalloc.c mm: add a call to flush_cache_vmap() in vmap_pfn() 2023-08-30 16:11:06 +02:00
vmpressure.c net-memcg: Fix scope of sockmem pressure indicators 2023-09-13 09:42:33 +02:00
vmscan.c mm: do not reclaim private data from pinned page 2023-05-11 23:03:39 +09:00
vmstat.c
workingset.c
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