Roman Gushchin 4330a26bc4 mm: memcg/slab: deprecate memory.kmem.slabinfo ... Deprecate memory.kmem.slabinfo. An empty file will be presented if corresponding config options are enabled. The interface is implementation dependent, isn't present in cgroup v2, and is generally useful only for core mm debugging purposes. In other words, it doesn't provide any value for the absolute majority of users. A drgn-based replacement can be found in tools/cgroup/memcg_slabinfo.py. It does support cgroup v1 and v2, mimics memory.kmem.slabinfo output and also allows to get any additional information without a need to recompile the kernel. If a drgn-based solution is too slow for a task, a bpf-based tracing tool can be used, which can easily keep track of all slab allocations belonging to a memory cgroup. Signed-off-by: Roman Gushchin <guro@fb.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Vlastimil Babka <vbabka@suse.cz> Reviewed-by: Shakeel Butt <shakeelb@google.com> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Cc: Christoph Lameter <cl@linux.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Tejun Heo <tj@kernel.org> Link: http://lkml.kernel.org/r/20200623174037.3951353-11-guro@fb.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2020-08-07 11:33:24 -07:00
..
kasan	mm: remove __ARCH_HAS_5LEVEL_HACK and include/asm-generic/5level-fixup.h	2020-06-04 19:06:21 -07:00
backing-dev.c	writeback: remove struct bdi_writeback_congested	2020-07-08 17:05:53 -06:00
balloon_compaction.c
cleancache.c
cma_debug.c	debugfs: make sure we can remove u32_array files cleanly	2020-07-10 13:54:00 -07:00
cma.c	mm/cma.c: use exact_nid true to fix possible per-numa cma leak	2020-07-03 16:15:25 -07:00
cma.h	debugfs: make sure we can remove u32_array files cleanly	2020-07-10 13:54:00 -07:00
compaction.c	mm, compaction: make capture control handling safe wrt interrupts	2020-06-26 00:27:36 -07:00
debug_page_ref.c
debug_vm_pgtable.c	Documentation/mm: add descriptions for arch page table helpers	2020-08-07 11:33:23 -07:00
debug.c	mm, dump_page: do not crash with bad compound_mapcount()	2020-08-07 11:33:23 -07:00
dmapool.c
early_ioremap.c
fadvise.c	mm: return void from various readahead functions	2020-06-02 10:59:06 -07:00
failslab.c
filemap.c	mm: filemap: add missing FGP_ flags in kerneldoc comment for pagecache_get_page	2020-08-07 11:33:23 -07:00
frame_vector.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
frontswap.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
gup_benchmark.c
gup.c	mm/gup.c: fix the comment of return value for populate_vma_page_range()	2020-08-07 11:33:23 -07:00
highmem.c
hmm.c	mm/hmm: provide the page mapping order in hmm_range_fault()	2020-07-10 16:24:28 -03:00
huge_memory.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
hugetlb_cgroup.c
hugetlb.c	mm/hugetlb: avoid hardcoding while checking if cma is enabled	2020-07-24 12:42:41 -07:00
hwpoison-inject.c
init-mm.c	mmap locking API: add MMAP_LOCK_INITIALIZER	2020-06-09 09:39:14 -07:00
internal.h	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
interval_tree.c
Kconfig	docs: move nommu-mmap.txt to admin-guide and rename to ReST	2020-06-26 11:33:35 -06:00
Kconfig.debug	treewide: replace '---help---' in Kconfig files with 'help'	2020-06-14 01:57:21 +09:00
khugepaged.c	khugepaged: fix null-pointer dereference due to race	2020-07-24 12:42:41 -07:00
kmemleak-test.c
kmemleak.c
ksm.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
list_lru.c	mm/list_lru.c: Rename kvfree_rcu() to local variant	2020-06-29 11:59:25 -07:00
maccess.c	maccess: rename probe_user_{read,write} to copy_{from,to}_user_nofault	2020-06-17 10:57:41 -07:00
madvise.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
Makefile	The Kernel Concurrency Sanitizer (KCSAN)	2020-06-11 18:55:43 -07:00
mapping_dirty_helpers.c
memblock.c	mm/memblock: expose only miminal interface to add/walk physmem	2020-07-10 15:08:09 +02:00
memcontrol.c	mm: memcg/slab: deprecate memory.kmem.slabinfo	2020-08-07 11:33:24 -07:00
memfd.c
memory_hotplug.c	mm/memory_hotplug.c: fix false softlockup during pfn range removal	2020-06-26 00:27:38 -07:00
memory-failure.c	mm/memory-failure: send SIGBUS(BUS_MCEERR_AR) only to current thread	2020-06-11 18:17:47 -07:00
memory.c	Remove uninitialized_var() macro for v5.9-rc1	2020-08-04 13:49:43 -07:00
mempolicy.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
mempool.c
memremap.c
memtest.c
migrate.c	mm/migrate: fix migrate_pgmap_owner w/o CONFIG_MMU_NOTIFIER	2020-08-07 11:33:21 -07:00
mincore.c	mmap locking API: use coccinelle to convert mmap_sem rwsem call sites	2020-06-09 09:39:14 -07:00
mlock.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
mm_init.c	mm/mm_init.c: report kasan-tag information stored in page->flags	2020-06-02 10:59:12 -07:00
mmap.c	Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into core/rcu	2020-07-31 00:15:53 +02:00
mmu_gather.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
mmu_notifier.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
mmzone.c
mprotect.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
mremap.c	mm: document warning in move_normal_pmd() and make it warn only once	2020-07-13 11:37:39 -07:00
msync.c	mmap locking API: use coccinelle to convert mmap_sem rwsem call sites	2020-06-09 09:39:14 -07:00
nommu.c	It's been a busy cycle for documentation - hopefully the busiest for a	2020-08-04 22:47:54 -07:00
oom_kill.c	mm: memcg: convert vmstat slab counters to bytes	2020-08-07 11:33:24 -07:00
page_alloc.c	mm: memcg: convert vmstat slab counters to bytes	2020-08-07 11:33:24 -07:00
page_counter.c
page_ext.c
page_idle.c	mm/page_idle.c: skip offline pages	2020-06-08 11:05:55 -07:00
page_io.c	mm/page_io.c: use blk_io_schedule() for avoiding task hung in sync io	2020-08-07 11:33:24 -07:00
page_isolation.c	mm: Allow to offline unmovable PageOffline() pages via MEM_GOING_OFFLINE	2020-06-04 15:36:52 -04:00
page_owner.c	mm: rename gfpflags_to_migratetype to gfp_migratetype for same convention	2020-06-03 20:09:45 -07:00
page_poison.c
page_reporting.c
page_reporting.h	mm: introduce include/linux/pgtable.h	2020-06-09 09:39:13 -07:00
page_vma_mapped.c
page-writeback.c	mm/page-writeback: fix a typo in comment "effictive"->"effective"	2020-06-04 19:06:24 -07:00
pagewalk.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
percpu-internal.h
percpu-km.c
percpu-stats.c
percpu-vm.c
percpu.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
pgtable-generic.c	mm: introduce include/linux/pgtable.h	2020-06-09 09:39:13 -07:00
process_vm_access.c	mmap locking API: use coccinelle to convert mmap_sem rwsem call sites	2020-06-09 09:39:14 -07:00
ptdump.c	mmap locking API: use coccinelle to convert mmap_sem rwsem call sites	2020-06-09 09:39:14 -07:00
readahead.c	mm: use memalloc_nofs_save in readahead path	2020-06-02 10:59:07 -07:00
rmap.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
rodata_test.c	maccess: rename probe_kernel_{read,write} to copy_{from,to}_kernel_nofault	2020-06-17 10:57:41 -07:00
shmem.c	tmpfs: support 64-bit inums per-sb	2020-08-07 11:33:24 -07:00
shuffle.c	mm/shuffle: don't move pages between zones and don't read garbage memmaps	2020-08-07 11:33:21 -07:00
shuffle.h
slab_common.c	mm: memcg/slab: deprecate memory.kmem.slabinfo	2020-08-07 11:33:24 -07:00
slab.c	mm: memcg/slab: save obj_cgroup for non-root slab objects	2020-08-07 11:33:24 -07:00
slab.h	mm: memcg/slab: charge individual slab objects instead of pages	2020-08-07 11:33:24 -07:00
slob.c	mm: memcg: convert vmstat slab counters to bytes	2020-08-07 11:33:24 -07:00
slub.c	mm: memcg/slab: save obj_cgroup for non-root slab objects	2020-08-07 11:33:24 -07:00
sparse-vmemmap.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
sparse.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
swap_cgroup.c	mm: memcontrol: make swap tracking an integral part of memory control	2020-06-03 20:09:48 -07:00
swap_slots.c	mm/swap_slots.c: remove redundant check for swap_slot_cache_initialized	2020-08-07 11:33:24 -07:00
swap_state.c	mm: swap: fix kerneldoc of swap_vma_readahead()	2020-08-07 11:33:24 -07:00
swap.c	treewide: Remove uninitialized_var() usage	2020-07-16 12:35:15 -07:00
swapfile.c	block: remove the bd_queue field from struct block_device	2020-07-01 08:08:20 -06:00
truncate.c
usercopy.c
userfaultfd.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
util.c	mmap locking API: convert mmap_sem comments	2020-06-09 09:39:14 -07:00
vmacache.c	kernel: better document the use_mm/unuse_mm API contract	2020-06-10 19:14:18 -07:00
vmalloc.c	mm: remove vmalloc_exec	2020-06-26 00:27:38 -07:00
vmpressure.c
vmscan.c	mm: memcg: convert vmstat slab counters to bytes	2020-08-07 11:33:24 -07:00
vmstat.c	mm: memcg: prepare for byte-sized vmstat items	2020-08-07 11:33:24 -07:00
workingset.c	mm: memcg: convert vmstat slab counters to bytes	2020-08-07 11:33:24 -07:00
z3fold.c	mm/z3fold: silence kmemleak false positives of slots	2020-05-28 11:35:40 -07:00
zbud.c	mm: use false for bool variable	2020-06-04 19:06:24 -07:00
zpool.c
zsmalloc.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
zswap.c