linux/mm
SeongJae Park de6d01542a mm/damon/vaddr: register a damon_operations for fixed virtual address ranges monitoring
Patch series "support fixed virtual address ranges monitoring".

The monitoring operations set for virtual address spaces automatically
updates the monitoring target regions to cover entire mappings of the
virtual address spaces as much as possible.  Some users could have more
information about their programs than kernel and therefore have interest
in not entire regions but only specific regions.  For such cases, the
automatic monitoring target regions updates are only unnecessary overhead
or distractions.

This patchset adds supports for the use case on DAMON's kernel API
(DAMON_OPS_FVADDR) and sysfs interface ('fvaddr' keyword for 'operations'
sysfs file).


This patch (of 3):

The monitoring operations set for virtual address spaces automatically
updates the monitoring target regions to cover entire mappings of the
virtual address spaces as much as possible.  Some users could have more
information about their programs than kernel and therefore have interest
in not entire regions but only specific regions.  For such cases, the
automatic monitoring target regions updates are only unnecessary overheads
or distractions.

For such cases, DAMON's API users can simply set the '->init()' and
'->update()' of the DAMON context's '->ops' NULL, and set the target
monitoring regions when creating the context.  But, that would be a dirty
hack.  Worse yet, the hack is unavailable for DAMON user space interface
users.

To support the use case in a clean way that can easily exported to the
user space, this commit adds another monitoring operations set called
'fvaddr', which is same to 'vaddr' but does not automatically update the
monitoring regions.  Instead, it will only respect the virtual address
regions which have explicitly passed at the initial context creation.

Note that this commit leave sysfs interface not supporting the feature
yet.  The support will be made in a following commit.

Link: https://lkml.kernel.org/r/20220426231750.48822-1-sj@kernel.org
Link: https://lkml.kernel.org/r/20220426231750.48822-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-05-13 07:20:06 -07:00
..
damon mm/damon/vaddr: register a damon_operations for fixed virtual address ranges monitoring 2022-05-13 07:20:06 -07:00
kasan kasan: fix sleeping function called from invalid context on RT kernel 2022-04-29 14:36:58 -07:00
kfence kfence: enable check kfence canary on panic via boot param 2022-05-13 07:20:06 -07:00
backing-dev.c remove congestion tracking framework 2022-03-22 15:57:01 -07:00
balloon_compaction.c mm/balloon_compaction: make balloon page compaction callbacks static 2022-03-28 16:52:57 -04:00
bootmem_info.c
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: make sure highest is above the min_pfn 2022-04-28 23:16:19 -07:00
debug_page_ref.c
debug_vm_pgtable.c mm/debug_vm_pgtable: add tests for __HAVE_ARCH_PTE_SWP_EXCLUSIVE 2022-05-09 18:20:45 -07:00
debug.c mm: unexport page_init_poison 2022-03-24 19:06:45 -07:00
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: fix regressions from wider use of ZERO_PAGE 2022-04-15 14:49:54 -07:00
folio-compat.c mm/rmap: Convert rmap_walk() to take a folio 2022-03-21 13:01:35 -04:00
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: fix comments to pin_user_pages_*() 2022-05-09 18:20:47 -07:00
highmem.c highmem: fix checks in __kmap_local_sched_{in,out} 2022-04-08 14:20:36 -10:00
hmm.c mm/hmm.c: remove unneeded local variable ret 2022-03-22 15:57:12 -07:00
huge_memory.c mm: avoid unnecessary flush on change_huge_pmd() 2022-05-13 07:20:05 -07:00
hugetlb_cgroup.c hugetlb: add hugetlb.*.numa_stat file 2022-01-15 16:30:29 +02:00
hugetlb_vmemmap.c mm/hugetlb_vmemmap: move comment block to Documentation/vm 2022-04-28 23:16:15 -07:00
hugetlb_vmemmap.h mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP* 2022-04-28 23:16:15 -07:00
hugetlb.c mm/gup: sanity-check with CONFIG_DEBUG_VM that anonymous pages are exclusive when (un)pinning 2022-05-09 18:20:45 -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 kernel/fork: Initialize mm's PASID 2022-02-14 19:51:47 +01:00
internal.h mm: compaction: clean up comment for sched contention 2022-04-28 23:16:17 -07:00
interval_tree.c
io-mapping.c
ioremap.c
Kconfig mm/mmap: drop arch_filter_pgprot() 2022-04-28 23:16:13 -07:00
Kconfig.debug mm: page table check 2022-01-15 16:30:28 +02:00
khugepaged.c mm/rmap: drop "compound" parameter from page_add_new_anon_rmap() 2022-05-09 18:20:43 -07:00
kmemleak.c mm: kmemleak: take a full lowmem check in kmemleak_*_phys() 2022-04-15 14:49:56 -07:00
ksm.c mm: remember exclusively mapped anonymous pages with PG_anon_exclusive 2022-05-09 18:20:44 -07:00
list_lru.c mm/list_lru.c: revert "mm/list_lru: optimize memcg_reparent_list_lru_node()" 2022-04-08 14:20:36 -10:00
maccess.c asm-generic updates for 5.18 2022-03-23 18:03:08 -07:00
madvise.c mm: submit multipage reads for SWP_FS_OPS swap-space 2022-05-09 18:20:49 -07:00
Makefile mm: hugetlb_vmemmap: cleanup CONFIG_HUGETLB_PAGE_FREE_VMEMMAP* 2022-04-28 23:16:15 -07:00
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: test suite and a small cleanup 2022-03-27 13:36:06 -07:00
memcontrol.c mm: create new mm/swap.h header file 2022-05-09 18:20:47 -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 mm/sparse-vmemmap: add a pgmap argument to section activation 2022-04-28 23:16:15 -07:00
memory-failure.c mm: create new mm/swap.h header file 2022-05-09 18:20:47 -07:00
memory.c mm: submit multipage reads for SWP_FS_OPS swap-space 2022-05-09 18:20:49 -07:00
mempolicy.c mm/mprotect: use mmu_gather 2022-05-13 07:20:05 -07:00
mempool.c
memremap.c mm/page-flags: reuse PG_mappedtodisk as PG_anon_exclusive for PageAnon() pages 2022-05-09 18:20:44 -07:00
memtest.c
migrate_device.c mm: remember exclusively mapped anonymous pages with PG_anon_exclusive 2022-05-09 18:20:44 -07:00
migrate.c mm: remember exclusively mapped anonymous pages with PG_anon_exclusive 2022-05-09 18:20:44 -07:00
mincore.c mm: create new mm/swap.h header file 2022-05-09 18:20:47 -07:00
mlock.c mm/munlock: protect the per-CPU pagevec by a local_lock_t 2022-04-01 11:46:09 -07:00
mm_init.c
mmap_lock.c
mmap.c mm/mmap: drop arch_vm_get_page_pgprot() 2022-04-28 23:16:14 -07:00
mmu_gather.c mm/mmu_gather: limit free batch count and add schedule point in tlb_batch_pages_flush 2022-04-28 23:16:12 -07:00
mmu_notifier.c mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove() 2022-04-21 20:01:10 -07:00
mmzone.c Folio changes for 5.18 2022-03-22 17:03:12 -07:00
mprotect.c mm/mprotect: do not flush when not required architecturally 2022-05-13 07:20:05 -07:00
mremap.c mm/mremap: avoid unneeded do_munmap call 2022-04-28 23:16:14 -07:00
msync.c
nommu.c no-MMU: expose vmalloc_huge() for alloc_large_system_hash() 2022-04-25 10:11:49 -07:00
oom_kill.c oom_kill.c: futex: delay the OOM reaper to allow time for proper futex cleanup 2022-04-21 20:01:10 -07:00
page_alloc.c mm: create new mm/swap.h header file 2022-05-09 18:20:47 -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: use for_each_online_node and node_online instead of open coding 2022-04-29 14:36:58 -07:00
page_idle.c mm/rmap: Constify the rmap_walk_control argument 2022-03-21 13:01:35 -04:00
page_io.c MM: handle THP in swap_*page_fs() - count_vm_events() 2022-05-09 18:20:49 -07:00
page_isolation.c mm: wrap __find_buddy_pfn() with a necessary buddy page validation 2022-04-28 23:16:01 -07:00
page_owner.c mm/page_owner.c: record tgid 2022-03-24 19:06:44 -07:00
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: pvmw: add support for walking devmap pages 2022-04-28 23:16:10 -07:00
page-writeback.c mm: rework calculation of bdi_min_ratio in bdi_set_min_ratio 2022-04-28 23:15:57 -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-stats.c mm: use vmalloc_array and vcalloc for array allocations 2022-03-08 09:30:46 -05:00
percpu-vm.c
percpu.c bitmap patches for 5.17-rc1 2022-01-23 06:20:44 +02:00
pgalloc-track.h
pgtable-generic.c mm: avoid unnecessary flush on change_huge_pmd() 2022-05-13 07:20:05 -07:00
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 readahead: Update comments 2022-04-01 14:40:42 -04:00
rmap.c mm/swap: remember PG_anon_exclusive via a swp pte bit 2022-05-09 18:20:45 -07:00
rodata_test.c
secretmem.c mm/secretmem: fix panic when growing a memfd_secret 2022-04-15 14:49:54 -07:00
shmem.c mm: create new mm/swap.h header file 2022-05-09 18:20:47 -07:00
shuffle.c
shuffle.h
slab_common.c mm, kfence: support kmem_dump_obj() for KFENCE objects 2022-04-15 14:49:55 -07:00
slab.c mm, kfence: support kmem_dump_obj() for KFENCE objects 2022-04-15 14:49:55 -07:00
slab.h mm, kfence: support kmem_dump_obj() for KFENCE objects 2022-04-15 14:49:55 -07:00
slob.c mm, kfence: support kmem_dump_obj() for KFENCE objects 2022-04-15 14:49:55 -07:00
slub.c mm, kfence: support kmem_dump_obj() for KFENCE objects 2022-04-15 14:49:55 -07:00
sparse-vmemmap.c mm/sparse-vmemmap: improve memory savings for compound devmaps 2022-04-28 23:16:16 -07:00
sparse.c mm/sparse-vmemmap: add a pgmap argument to section activation 2022-04-28 23:16:15 -07:00
swap_cgroup.c mm: use vmalloc_array and vcalloc for array allocations 2022-03-08 09:30:46 -05:00
swap_slots.c
swap_state.c mm: submit multipage reads for SWP_FS_OPS swap-space 2022-05-09 18:20:49 -07:00
swap.c mm/munlock: protect the per-CPU pagevec by a local_lock_t 2022-04-01 11:46:09 -07:00
swap.h mm: submit multipage write for SWP_FS_OPS swap-space 2022-05-09 18:20:49 -07:00
swapfile.c mm: introduce ->swap_rw and use it for reads from SWP_FS_OPS swap-space 2022-05-09 18:20:48 -07:00
truncate.c Filesystem folio changes for 5.18 2022-03-22 18:26:56 -07:00
usercopy.c Merge branch 'akpm' (patches from Andrew) 2022-03-22 16:11:53 -07:00
userfaultfd.c mm/mprotect: use mmu_gather 2022-05-13 07:20:05 -07:00
util.c mm: create new mm/swap.h header file 2022-05-09 18:20:47 -07:00
vmacache.c
vmalloc.c vmap(): don't allow invalid pages 2022-04-28 23:16:00 -07:00
vmpressure.c
vmscan.c mm: submit multipage write for SWP_FS_OPS swap-space 2022-05-09 18:20:49 -07:00
vmstat.c mm/vmstat: add events for ksm cow 2022-04-28 23:16:16 -07:00
workingset.c memcg: sync flush only if periodic flush is delayed 2022-04-21 20:01:09 -07:00
z3fold.c mm/z3fold: remove unneeded PAGE_HEADLESS check in free_handle() 2022-04-28 23:16:06 -07:00
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: create new mm/swap.h header file 2022-05-09 18:20:47 -07:00