Vasily Averin 6126891c6d memcg: enable accounting for IP address and routing-related objects ... An netadmin inside container can use 'ip a a' and 'ip r a' to assign a large number of ipv4/ipv6 addresses and routing entries and force kernel to allocate megabytes of unaccounted memory for long-lived per-netdevice related kernel objects: 'struct in_ifaddr', 'struct inet6_ifaddr', 'struct fib6_node', 'struct rt6_info', 'struct fib_rules' and ip_fib caches. These objects can be manually removed, though usually they lives in memory till destroy of its net namespace. It makes sense to account for them to restrict the host's memory consumption from inside the memcg-limited container. One of such objects is the 'struct fib6_node' mostly allocated in net/ipv6/route.c::__ip6_ins_rt() inside the lock_bh()/unlock_bh() section: write_lock_bh(&table->tb6_lock); err = fib6_add(&table->tb6_root, rt, info, mxc); write_unlock_bh(&table->tb6_lock); In this case it is not enough to simply add SLAB_ACCOUNT to corresponding kmem cache. The proper memory cgroup still cannot be found due to the incorrect 'in_interrupt()' check used in memcg_kmem_bypass(). Obsoleted in_interrupt() does not describe real execution context properly. >From include/linux/preempt.h: The following macros are deprecated and should not be used in new code: in_interrupt() - We're in NMI,IRQ,SoftIRQ context or have BH disabled To verify the current execution context new macro should be used instead: in_task() - We're in task context Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2021-07-20 06:00:38 -07:00
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kasan	Merge branch 'akpm' (patches from Andrew)	2021-06-29 17:29:11 -07:00
kfence	kfence: unconditionally use unbound work queue	2021-07-01 11:06:03 -07:00
backing-dev.c	writeback, cgroup: release dying cgwbs by switching attached inodes	2021-06-29 10:53:48 -07:00
balloon_compaction.c
bootmem_info.c	mm: memory_hotplug: factor out bootmem core functions to bootmem_info.c	2021-06-30 20:47:25 -07:00
cleancache.c
cma_debug.c
cma_sysfs.c
cma.c
cma.h
compaction.c	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
debug_page_ref.c
debug_vm_pgtable.c	mm/swapops: rework swap entry manipulation code	2021-07-01 11:06:03 -07:00
debug.c	mm/debug: factor PagePoisoned out of __dump_page	2021-06-29 10:53:53 -07:00
dmapool.c	mm/dmapool: use DEVICE_ATTR_RO macro	2021-06-29 10:53:52 -07:00
early_ioremap.c
fadvise.c
failslab.c
filemap.c	Merge branch 'work.iov_iter' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2021-07-03 11:30:04 -07:00
frontswap.c
gup_test.c
gup_test.h
gup.c	mm: introduce memfd_secret system call to create "secret" memory areas	2021-07-08 11:48:21 -07:00
highmem.c
hmm.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
huge_memory.c	mm/rmap: fix comments left over from recent changes	2021-07-11 15:05:15 -07:00
hugetlb_cgroup.c
hugetlb_vmemmap.c	mm: hugetlb: introduce CONFIG_HUGETLB_PAGE_FREE_VMEMMAP_DEFAULT_ON	2021-06-30 20:47:26 -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	mm/swapops: rework swap entry manipulation code	2021-07-01 11:06:03 -07:00
hwpoison-inject.c
init-mm.c	mm: add setup_initial_init_mm() helper	2021-07-08 11:48:21 -07:00
internal.h	mmap: make mlock_future_check() global	2021-07-08 11:48:20 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig	mm: introduce memfd_secret system call to create "secret" memory areas	2021-07-08 11:48:21 -07:00
Kconfig.debug
khugepaged.c	mm, thp: relax the VM_DENYWRITE constraint on file-backed THPs	2021-06-30 20:47:29 -07:00
kmemleak.c	mm/kmemleak: fix possible wrong memory scanning period	2021-06-29 10:53:47 -07:00
ksm.c	mm/ksm: use vma_lookup() in find_mergeable_vma()	2021-06-29 10:53:52 -07:00
list_lru.c
maccess.c
madvise.c	mm/madvise: introduce MADV_POPULATE_(READ|WRITE) to prefault page tables	2021-06-30 20:47:30 -07:00
Makefile	mm: introduce memfd_secret system call to create "secret" memory areas	2021-07-08 11:48:21 -07:00
mapping_dirty_helpers.c	mm/mapping_dirty_helpers: remove double Note in kerneldoc	2021-07-01 11:06:02 -07:00
memblock.c	memblock, arm: fix crashes caused by holes in the memory map	2021-07-04 12:23:05 -07:00
memcontrol.c	memcg: enable accounting for IP address and routing-related objects	2021-07-20 06:00:38 -07:00
memfd.c
memory_hotplug.c	mm/memory_hotplug: fix kerneldoc comment for __remove_memory	2021-07-01 11:06:02 -07:00
memory-failure.c	mm: fix spelling mistakes	2021-07-01 11:06:02 -07:00
memory.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
mempolicy.c	mm/mempolicy: use unified 'nodes' for bind/interleave/prefer policies	2021-06-30 20:47:29 -07:00
mempool.c
memremap.c
memtest.c
migrate.c	mm: Make copy_huge_page() always available	2021-07-12 11:30:56 -07:00
mincore.c
mlock.c	mm: introduce memfd_secret system call to create "secret" memory areas	2021-07-08 11:48:21 -07:00
mm_init.c
mmap_lock.c	mm/mmap_lock: remove dead code for !CONFIG_TRACING configurations	2021-07-01 11:06:03 -07:00
mmap.c	mmap: make mlock_future_check() global	2021-07-08 11:48:20 -07:00
mmu_gather.c
mmu_notifier.c
mmzone.c
mprotect.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
mremap.c	mm/mremap: allow arch runtime override	2021-07-08 11:48:23 -07:00
msync.c
nommu.c	mm/nommu: unexport do_munmap()	2021-06-30 20:47:30 -07:00
oom_kill.c	Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu	2021-07-04 12:58:33 -07:00
page_alloc.c	mm/page_alloc: Revert pahole zero-sized workaround	2021-07-10 16:09:39 -07:00
page_counter.c
page_ext.c	mm: replace CONFIG_FLAT_NODE_MEM_MAP with CONFIG_FLATMEM	2021-06-29 10:53:55 -07:00
page_idle.c
page_io.c
page_isolation.c
page_owner.c	mm/page_owner: constify dump_page_owner	2021-06-29 10:53:53 -07:00
page_poison.c
page_reporting.c	mm/page_reporting: allow driver to specify reporting order	2021-06-29 10:53:47 -07:00
page_reporting.h	mm/page_reporting: export reporting order as module parameter	2021-06-29 10:53:47 -07:00
page_vma_mapped.c	mm: device exclusive memory access	2021-07-01 11:06:03 -07:00
page-writeback.c	for-5.14/block-2021-06-29	2021-06-30 12:12:56 -07:00
pagewalk.c	mm: pagewalk: fix walk for hugepage tables	2021-06-29 10:53:49 -07:00
percpu-internal.h	Merge branch 'for-5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu	2021-07-01 17:17:24 -07:00
percpu-km.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu-stats.c
percpu-vm.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
percpu.c	percpu: flush tlb in pcpu_reclaim_populated()	2021-07-04 18:30:17 +00:00
pgalloc-track.h
pgtable-generic.c
process_vm_access.c
ptdump.c
readahead.c
rmap.c	mm/rmap: fix munlocking Anon THP with mlocked ptes	2021-07-12 11:30:56 -07:00
rodata_test.c
secretmem.c	PM: hibernate: disable when there are active secretmem users	2021-07-08 11:48:21 -07:00
shmem.c	Merge branch 'akpm' (patches from Andrew)	2021-07-02 12:08:10 -07:00
shuffle.c
shuffle.h
slab_common.c	Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu	2021-07-04 12:58:33 -07:00
slab.c
slab.h	Merge branch 'core-rcu-2021.07.04' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu	2021-07-04 12:58:33 -07:00
slob.c
slub.c	mm/slub: use stackdepot to save stack trace in objects	2021-07-08 11:48:20 -07:00
sparse-vmemmap.c	mm: sparsemem: split the huge PMD mapping of vmemmap pages	2021-06-30 20:47:26 -07:00
sparse.c	mm: memory_hotplug: factor out bootmem core functions to bootmem_info.c	2021-06-30 20:47:25 -07:00
swap_cgroup.c
swap_slots.c	mm/swap_slots.c: delete meaningless forward declarations	2021-06-29 10:53:49 -07:00
swap_state.c	swap: check mapping_empty() for swap cache before being freed	2021-06-29 10:53:49 -07:00
swap.c	mm: fix typos and grammar error in comments	2021-07-01 11:06:02 -07:00
swapfile.c	mm: fix spelling mistakes	2021-07-01 11:06:02 -07:00
truncate.c
usercopy.c
userfaultfd.c	userfaultfd/shmem: modify shmem_mfill_atomic_pte to use install_pte()	2021-06-30 20:47:27 -07:00
util.c	mm: Make copy_huge_page() always available	2021-07-12 11:30:56 -07:00
vmacache.c
vmalloc.c	mm/vmalloc: include header for prototype of set_iounmap_nonlazy	2021-07-01 11:06:02 -07:00
vmpressure.c
vmscan.c	mm/vmscan: remove kerneldoc-like comment from isolate_lru_pages	2021-07-01 11:06:02 -07:00
vmstat.c	mm/vmstat: inline NUMA event counter updates	2021-06-29 10:53:54 -07:00
workingset.c	mm: workingset: define macro WORKINGSET_SHIFT	2021-06-30 20:47:28 -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
zsmalloc.c	mm/zsmalloc.c: improve readability for async_free_zspage()	2021-07-01 11:06:02 -07:00
zswap.c	mm/zswap.c: fix two bugs in zswap_writeback_entry()	2021-06-30 20:47:31 -07:00