SeongJae Park a61ea561c8 mm/damon/sysfs: link DAMON for virtual address spaces monitoring ... This commit links the DAMON sysfs interface to DAMON so that users can control DAMON via the interface. In detail, this commit makes writing 'on' to 'state' file constructs DAMON contexts based on values that users have written to relevant sysfs files and start the context. It supports only virtual address spaces monitoring at the moment, though. The files hierarchy of DAMON sysfs interface after this commit is shown below. In the below figure, parents-children relations are represented with indentations, each directory is having ``/`` suffix, and files in each directory are separated by comma (","). /sys/kernel/mm/damon/admin │ kdamonds/nr_kdamonds │ │ 0/state,pid │ │ │ contexts/nr_contexts │ │ │ │ 0/operations │ │ │ │ │ monitoring_attrs/ │ │ │ │ │ │ intervals/sample_us,aggr_us,update_us │ │ │ │ │ │ nr_regions/min,max │ │ │ │ │ targets/nr_targets │ │ │ │ │ │ 0/pid_target │ │ │ │ │ │ ... │ │ │ │ ... │ │ ... The usage is straightforward. Writing a number ('N') to each 'nr_*' file makes directories named '0' to 'N-1'. Users can construct DAMON contexts by writing proper values to the files in the straightforward manner and start each kdamond by writing 'on' to 'kdamonds/<N>/state'. Link: https://lkml.kernel.org/r/20220228081314.5770-5-sj@kernel.org Signed-off-by: SeongJae Park <sj@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Shuah Khan <skhan@linuxfoundation.org> Cc: Xin Hao <xhao@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2022-03-22 15:57:13 -07:00
..
damon	mm/damon/sysfs: link DAMON for virtual address spaces monitoring	2022-03-22 15:57:13 -07:00
kasan	lib/stackdepot: always do filter_irq_stacks() in stack_depot_save()	2022-01-22 08:33:38 +02:00
kfence	kfence: allow use of a deferrable timer	2022-03-22 15:57:11 -07:00
backing-dev.c	remove congestion tracking framework	2022-03-22 15:57:01 -07:00
balloon_compaction.c
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	mm/cma: provide option to opt out from exposing pages on activation failure	2022-03-22 15:57:09 -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: cleanup the compaction trace events	2022-03-22 15:57:09 -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,fs: split dump_mapping() out from dump_page()	2022-01-15 16:30:26 +02:00
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: do not allocate pages on read	2022-03-22 15:57:02 -07:00
folio-compat.c	filemap: Add filemap_release_folio()	2022-01-04 13:15:34 -05:00
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/gup: remove unused get_user_pages_locked()	2022-03-22 15:57:01 -07:00
highmem.c	mm/highmem: remove unnecessary done label	2022-03-22 15:57:11 -07:00
hmm.c	mm/hmm.c: remove unneeded local variable ret	2022-03-22 15:57:12 -07:00
huge_memory.c	memory tiering: skip to scan fast memory	2022-03-22 15:57:09 -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
hugetlb.c	userfaultfd: provide unmasked address on page-fault	2022-03-22 15:57:08 -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	mm: add setup_initial_init_mm() helper	2021-07-08 11:48:21 -07:00
internal.h	mm/early_ioremap: declare early_memremap_pgprot_adjust()	2022-03-22 15:57:11 -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/hugetlb: generalize ARCH_WANT_GENERAL_HUGETLB	2022-03-22 15:57:08 -07:00
Kconfig.debug	mm: page table check	2022-01-15 16:30:28 +02:00
khugepaged.c	mm/page_table_check: check entries at pmd levels	2022-02-04 09:25:04 -08:00
kmemleak.c	mm/kmemleak: avoid scanning potential huge holes	2022-02-04 09:25:05 -08:00
ksm.c	mm/ksm: use helper macro __ATTR_RW	2022-03-22 15:57:09 -07:00
list_lru.c	mm/list_lru: optimize memcg_reparent_list_lru_node()	2022-03-22 15:57:08 -07:00
maccess.c	mm: uninline copy_overflow()	2022-03-22 15:57:11 -07:00
madvise.c	mm: madvise: skip unmapped vma holes passed to process_madvise	2022-03-22 15:57:10 -07:00
Makefile	mm: remove cleancache	2022-01-22 08:33:38 +02:00
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: use kfree() to release kmalloced memblock regions	2022-02-20 08:45:39 +02:00
memcontrol.c	memcg: do not tweak node in alloc_mem_cgroup_per_node_info	2022-03-22 15:57:10 -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	drivers/base/memory: determine and store zone for single-zone memory blocks	2022-03-22 15:57:10 -07:00
memory-failure.c	mm/memory-failure.c: make non-LRU movable pages unhandlable	2022-03-22 15:57:07 -07:00
memory.c	userfaultfd: provide unmasked address on page-fault	2022-03-22 15:57:08 -07:00
mempolicy.c	mempolicy: mbind_range() set_policy() after vma_merge()	2022-03-22 15:57:09 -07:00
mempool.c	mm: remove spurious blkdev.h includes	2021-10-18 06:17:01 -06:00
memremap.c	mm/memremap: avoid calling kasan_remove_zero_shadow() for device private memory	2022-03-22 15:57:01 -07:00
memtest.c
migrate.c	mm: only re-generate demotion targets when a numa node changes its N_CPU state	2022-03-22 15:57:11 -07:00
mincore.c
mlock.c	mm/mlock: fix potential imbalanced rlimit ucounts adjustment	2022-03-22 15:57:07 -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/mmap: remove obsolete comment in ksys_mmap_pgoff	2022-03-22 15:57:05 -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
mmzone.c	mm/mmzone.c: use try_cmpxchg() in page_cpupid_xchg_last()	2022-03-22 15:57:05 -07:00
mprotect.c	memory tiering: skip to scan fast memory	2022-03-22 15:57:09 -07:00
mremap.c	mm/mremap:: use vma_lookup() instead of find_vma()	2022-03-22 15:57:05 -07:00
msync.c
nommu.c	Merge branch 'akpm' (patches from Andrew)	2021-11-06 14:08:17 -07:00
oom_kill.c	mm/oom_kill: remove unneeded is_memcg_oom check	2022-03-22 15:57:09 -07:00
page_alloc.c	mm: make free_area_init_node aware of memory less nodes	2022-03-22 15:57:10 -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/idle_page_tracking: make PG_idle reusable	2021-09-08 11:50:24 -07:00
page_io.c	mm: page_io: fix psi memory pressure error on cold swapins	2022-03-22 15:57:09 -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	lib/stackdepot: allow optional init and stack_table allocation by kvmalloc()	2022-01-22 08:33:37 +02:00
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: device exclusive memory access	2021-07-01 11:06:03 -07:00
page-writeback.c	mm/writeback: minor clean up for highmem_dirtyable_memory	2022-03-22 15:57:01 -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
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	remove inode_congested()	2022-03-22 15:57:01 -07:00
rmap.c	mm/thp: ClearPageDoubleMap in first page_add_file_rmap()	2022-03-22 15:57:11 -07:00
rodata_test.c
secretmem.c	mm/secretmem: avoid letting secretmem_users drop to zero	2021-10-28 17:18:55 -07:00
shmem.c	mm: shmem: fix missing cache flush in shmem_mfill_atomic_pte()	2022-03-22 15:57:04 -07:00
shuffle.c
shuffle.h
slab_common.c	Merge branch 'akpm' (patches from Andrew)	2022-01-15 20:37:06 +02:00
slab.c	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -07:00
slab.h	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -07:00
slob.c	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -07:00
slub.c	mm: introduce kmem_cache_alloc_lru	2022-03-22 15:57:03 -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
swap_slots.c	treewide: Add missing includes masked by cgroup -> bpf dependency	2021-12-03 10:58:13 -08:00
swap_state.c	mm: swap: get rid of livelock in swapin readahead	2022-03-17 11:02:13 -07:00
swap.c	mm: lru_cache_disable: replace work queue synchronization with synchronize_rcu	2022-03-22 15:57:08 -07:00
swapfile.c	userfaultfd: provide unmasked address on page-fault	2022-03-22 15:57:08 -07:00
truncate.c	mm: remove cleancache	2022-01-22 08:33:38 +02:00
usercopy.c	mm/usercopy: return 1 from hardened_usercopy __setup() handler	2022-03-22 15:57:11 -07:00
userfaultfd.c	mm: userfaultfd: fix missing cache flush in mcopy_atomic_pte() and __mcopy_atomic()	2022-03-22 15:57:04 -07:00
util.c	mm: Consider __GFP_NOWARN flag for oversized kvmalloc() calls	2022-03-04 10:00:37 -08:00
vmacache.c
vmalloc.c	mm/vmalloc.c: fix "unused function" warning	2022-03-22 15:57:05 -07:00
vmpressure.c	mm/vmpressure: fix data-race with memcg->socket_pressure	2021-11-06 13:30:40 -07:00
vmscan.c	NUMA balancing: optimize page placement for memory tiering system	2022-03-22 15:57:09 -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	mm: workingset: replace IRQ-off check with a lockdep assert.	2022-03-22 15:57:08 -07:00
z3fold.c
zbud.c
zpool.c	zpool: remove the list of pools_head	2022-01-15 16:30:31 +02:00
zsmalloc.c	zsmalloc: replace get_cpu_var with local_lock	2022-01-22 08:33:37 +02:00
zswap.c	mm/zswap.c: allow handling just same-value filled pages	2022-03-22 15:57:11 -07:00