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9c84819bd64ec15cb15d041c45ebe4725e9d4f3b
linux_media/mm
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Stefan Roesch 9c84819bd6 mm: add /sys/class/bdi/<bdi>/min_bytes knob 
bdi has two existing knobs to limit the amount of dirty memory:
min_ratio and max_ratio. However the granularity of the knobs is limited
and often it is more convenient to specify limits in terms of bytes.
This change adds the min_bytes knob.

It does not store the min_bytes value, instead it converts the max_bytes
value to a ratio. The value is therefore more an approximation than an
absolute value.

It also maintains the sum over all the bdi min_ratio values stored in
the variable bdi_min_ratio.

Link: https://lkml.kernel.org/r/20221119005215.3052436-14-shr@devkernel.io
Signed-off-by: Stefan Roesch <shr@devkernel.io>
Cc: Chris Mason <clm@meta.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-11-30 15:59:05 -08:00
..
damon
mm/damon: use kstrtobool() instead of strtobool()
2022-11-30 15:58:45 -08:00
kasan
memory: move hotplug memory notifier priority to same file for easy sorting
2022-11-08 17:37:17 -08:00
kfence
mm/kfence: remove hung_task cruft
2022-11-30 15:58:53 -08:00
kmsan
kmsan: core: kmsan_in_runtime() should return true in NMI context
2022-11-08 15:57:24 -08:00
backing-dev.c
mm: add /sys/class/bdi/<bdi>/min_bytes knob
2022-11-30 15:59:05 -08:00
balloon_compaction.c
mm: Convert all PageMovable users to movable_operations
2022-08-02 12:34:03 -04:00
bootmem_info.c
bootmem: remove the vmemmap pages from kmemleak in put_page_bootmem
2022-08-28 14:02:45 -07:00
cma_debug.c
mm/cma_debug: show complete cma name in debugfs directories
2022-09-11 20:25:50 -07:00
cma_sysfs.c
…
cma.c
Revert "mm/cma.c: remove redundant cma_mutex lock"
2022-05-13 15:11:26 -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: migrate: fix THP's mapcount on isolation
2022-11-30 14:49:41 -08:00
debug_page_ref.c
…
debug_vm_pgtable.c
mm: remove unused savedwrite infrastructure
2022-11-30 15:58:49 -08:00
debug.c
mm,thp,rmap: simplify compound page mapcount handling
2022-11-30 15:58:46 -08:00
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
riscv: compat: syscall: Add compat_sys_call_table implementation
2022-04-26 13:36:25 -07:00
failslab.c
mm: fix unexpected changes to {failslab|fail_page_alloc}.attr
2022-11-22 18:50:44 -08:00
filemap.c
filemap: find_get_entries() now updates start offset
2022-11-08 17:37:12 -08:00
folio-compat.c
folio-compat: remove try_to_release_page()
2022-11-30 15:59:02 -08:00
frontswap.c
frontswap: don't call ->init if no ops are registered
2022-09-26 12:14:34 -07:00
gup_test.c
mm/gup_test: start/stop/read functionality for PIN LONGTERM test
2022-11-08 17:37:15 -08:00
gup_test.h
mm/gup_test: start/stop/read functionality for PIN LONGTERM test
2022-11-08 17:37:15 -08:00
gup.c
mm/gup: disallow FOLL_FORCE|FOLL_WRITE on hugetlb mappings
2022-11-30 15:59:00 -08:00
highmem.c
highmem: fix kmap_to_page() for kmap_local_page() addresses
2022-10-12 18:51:51 -07:00
hmm.c
mm/swap: add swp_offset_pfn() to fetch PFN from swap entry
2022-09-26 19:46:05 -07:00
huge_memory.c
mm/gup: reliable R/O long-term pinning in COW mappings
2022-11-30 15:58:58 -08:00
hugetlb_cgroup.c
mm/hugeltb_cgroup: convert hugetlb_cgroup_commit_charge*() to folios
2022-11-30 15:58:43 -08:00
hugetlb_vmemmap.c
mm/hugetlb_vmemmap: remap head page to newly allocated page
2022-11-30 15:58:47 -08:00
hugetlb_vmemmap.h
mm: hugetlb_vmemmap: improve hugetlb_vmemmap code readability
2022-08-08 18:06:43 -07:00
hugetlb.c
mm/gup: reliable R/O long-term pinning in COW mappings
2022-11-30 15:58:58 -08:00
hwpoison-inject.c
mm/hwpoison: add __init/__exit annotations to module init/exit funcs
2022-10-03 14:03:05 -07:00
init-mm.c
mm: remove rb tree.
2022-09-26 19:46:16 -07:00
internal.h
mm/hwpoison: introduce per-memory_block hwpoison counter
2022-11-08 17:37:22 -08:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
mm: ioremap: Add ioremap/iounmap_allowed()
2022-06-27 12:22:31 +01:00
Kconfig
mm: Kconfig: make config SECRETMEM visible with EXPERT
2022-11-30 15:58:56 -08:00
Kconfig.debug
Merge tag 'mm-stable-2022-05-27' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-05-27 11:40:49 -07:00
khugepaged.c
khugepage: replace try_to_release_page() with filemap_release_folio()
2022-11-30 15:59:02 -08:00
kmemleak.c
mm/kmemleak.c: fix a comment
2022-11-30 15:58:54 -08:00
ksm.c
mm/autonuma: use can_change_(pte|pmd)_writable() to replace savedwrite
2022-11-30 15:58:49 -08:00
list_lru.c
mm: kmem: make mem_cgroup_from_obj() vmalloc()-safe
2022-06-16 19:48:31 -07:00
maccess.c
Merge tag 'asm-generic-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
2022-03-23 18:03:08 -07:00
madvise.c
mm: anonymous shared memory naming
2022-11-30 15:58:55 -08:00
Makefile
mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol
2022-10-03 14:03:36 -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
mm: add pageblock_align() macro
2022-10-03 14:03:04 -07:00
memcontrol.c
mm: vmscan: split khugepaged stats from direct reclaim stats
2022-11-30 15:58:41 -08:00
memfd.c
memfd: fix F_SEAL_WRITE after shmem huge page allocated
2022-03-05 11:08:32 -08:00
memory_hotplug.c
mm: add pageblock_aligned() macro
2022-10-03 14:03:04 -07:00
memory-failure.c
memory-failure: convert truncate_error_page() to use folio
2022-11-30 15:59:02 -08:00
memory-tiers.c
mm/demotion: fix NULL vs IS_ERR checking in memory_tier_init
2022-11-30 15:58:54 -08:00
memory.c
mm: extend FAULT_FLAG_UNSHARE support to anything in a COW mapping
2022-11-30 15:58:58 -08:00
mempolicy.c
mm/mempolicy: fix mbind_range() arguments to vma_merge()
2022-10-20 21:27:21 -07:00
mempool.c
mempool: do not use ksize() for poisoning
2022-11-30 15:58:41 -08:00
memremap.c
mm/memremap.c: map FS_DAX device memory as decrypted
2022-11-08 15:57:23 -08:00
memtest.c
…
migrate_device.c
mm/migrate_device: return number of migrating pages in args->cpages
2022-11-22 18:50:43 -08:00
migrate.c
mm/migrate.c: stop using 0 as NULL pointer
2022-11-30 15:59:00 -08:00
mincore.c
mm: convert find_get_incore_page() to filemap_get_incore_folio()
2022-11-08 17:37:18 -08:00
mlock.c
mm/mlock: drop dead code in count_mm_mlocked_page_nr()
2022-09-26 19:46:27 -07:00
mm_init.c
memory: move hotplug memory notifier priority to same file for easy sorting
2022-11-08 17:37:17 -08:00
mm_slot.h
mm: introduce common struct mm_slot
2022-10-03 14:02:43 -07:00
mmap_lock.c
…
mmap.c
Merge branch 'mm-hotfixes-stable' into mm-stable
2022-11-30 14:58:42 -08:00
mmu_gather.c
Revert "kmsan: unpoison @tlb in arch_tlb_gather_mmu()"
2022-11-30 15:59:02 -08:00
mmu_notifier.c
mm/mmu_notifier.c: fix race in mmu_interval_notifier_remove()
2022-04-21 20:01:10 -07:00
mmzone.c
mm: multi-gen LRU: groundwork
2022-09-26 19:46:09 -07:00
mprotect.c
mm/autonuma: use can_change_(pte|pmd)_writable() to replace savedwrite
2022-11-30 15:58:49 -08:00
mremap.c
mm: add merging after mremap resize
2022-09-26 19:46:28 -07:00
msync.c
mm/msync: use vma_find() instead of vma linked list
2022-09-26 19:46:25 -07:00
nommu.c
mm: remove the vma linked list
2022-09-26 19:46:26 -07:00
oom_kill.c
mm: reduce noise in show_mem for lowmem allocations
2022-09-26 19:46:29 -07:00
page_alloc.c
mm/page_alloc: simplify locking during free_unref_page_list
2022-11-30 15:59:01 -08:00
page_counter.c
mm: page_counter: remove unneeded atomic ops for low/min
2022-09-11 20:26:01 -07:00
page_ext.c
Merge branch 'mm-hotfixes-stable' into mm-stable
2022-11-30 14:58:42 -08:00
page_idle.c
mm: don't be stuck to rmap lock on reclaim path
2022-05-19 14:08:54 -07:00
page_io.c
swap: convert swap_writepage() to use a folio
2022-10-03 14:02:52 -07:00
page_isolation.c
mm/page_isolation: fix clang deadcode warning
2022-10-28 13:37:22 -07:00
page_owner.c
mm: reuse pageblock_start/end_pfn() macro
2022-10-03 14:03:03 -07:00
page_poison.c
…
page_reporting.c
…
page_reporting.h
…
page_table_check.c
mm: use kstrtobool() instead of strtobool()
2022-11-30 15:58:45 -08:00
page_vma_mapped.c
mm/swap: add swp_offset_pfn() to fetch PFN from swap entry
2022-09-26 19:46:05 -07:00
page-writeback.c
mm: add bdi_set_min_bytes() function
2022-11-30 15:59:05 -08:00
pagewalk.c
Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-10-10 17:53:04 -07:00
percpu-internal.h
percpu: improve percpu_alloc_percpu event trace
2022-05-13 07:20:18 -07:00
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
mm: percpu: use kmemleak_ignore_phys() instead of kmemleak_free()
2022-07-17 17:14:47 -07:00
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: pagewalk: Fix race between unmap and page walker
2022-09-03 10:13:13 -07:00
readahead.c
mm: add PSI accounting around ->read_folio and ->readahead calls
2022-09-20 08:24:38 -06:00
rmap.c
mm,thp,rmap: subpages_mapcount COMPOUND_MAPPED if PMD-mapped
2022-11-30 15:58:48 -08:00
rodata_test.c
mm/rodata_test: use PAGE_ALIGNED() helper
2022-10-03 14:03:05 -07:00
secretmem.c
mm/secretmem: remove reduntant return value
2022-10-03 14:03:36 -07:00
shmem.c
mm: anonymous shared memory naming
2022-11-30 15:58:55 -08:00
shrinker_debug.c
mm: shrinkers: fix double kfree on shrinker name
2022-07-29 18:07:13 -07:00
shuffle.c
mm/shuffle: convert module_param_call to module_param_cb
2022-10-03 14:03:07 -07:00
shuffle.h
…
slab_common.c
Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-10-10 17:53:04 -07:00
slab.c
Merge tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random
2022-10-16 15:27:07 -07:00
slab.h
Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
2022-10-10 17:53:04 -07:00
slob.c
Merge branch 'slab/for-6.1/kmalloc_size_roundup' into slab/for-next
2022-09-29 11:30:55 +02:00
slub.c
mm/slub.c: use hotplug_memory_notifier() directly
2022-11-08 17:37:16 -08:00
sparse-vmemmap.c
mm: hugetlb_vmemmap: move vmemmap code related to HugeTLB to hugetlb_vmemmap.c
2022-08-08 18:06:42 -07:00
sparse.c
mm/hwpoison: introduce per-memory_block hwpoison counter
2022-11-08 17:37:22 -08:00
swap_cgroup.c
mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled
2022-10-03 14:03:36 -07:00
swap_slots.c
mm/swap: convert put_swap_page() to put_swap_folio()
2022-10-03 14:02:46 -07:00
swap_state.c
mm: mmu_gather: prepare to gather encoded page pointers with flags
2022-11-30 15:58:50 -08:00
swap.c
mm: teach release_pages() to take an array of encoded page pointers too
2022-11-30 15:58:50 -08:00
swap.h
mm: convert find_get_incore_page() to filemap_get_incore_folio()
2022-11-08 17:37:18 -08:00
swapfile.c
mm: use pte markers for swap errors
2022-11-30 15:58:46 -08:00
truncate.c
filemap: find_get_entries() now updates start offset
2022-11-08 17:37:12 -08:00
usercopy.c
mm: use kstrtobool() instead of strtobool()
2022-11-30 15:58:45 -08:00
userfaultfd.c
mm/shmem: use page_mapping() to detect page cache for uffd continue
2022-11-08 15:57:23 -08:00
util.c
mm,thp,rmap: simplify compound page mapcount handling
2022-11-30 15:58:46 -08:00
vmalloc.c
mm: vmalloc: use trace_free_vmap_area_noflush event
2022-11-08 17:37:17 -08:00
vmpressure.c
…
vmscan.c
mm: multi-gen LRU: remove NULL checks on NODE_DATA()
2022-11-30 15:59:00 -08:00
vmstat.c
mm: vmscan: split khugepaged stats from direct reclaim stats
2022-11-30 15:58:41 -08:00
workingset.c
mm: vmscan: make rotations a secondary factor in balancing anon vs file
2022-11-08 17:37:11 -08:00
z3fold.c
mm: Convert all PageMovable users to movable_operations
2022-08-02 12:34:03 -04:00
zbud.c
…
zpool.c
zpool: remove the list of pools_head
2022-01-15 16:30:31 +02:00
zsmalloc.c
zram: add size class equals check into recompression
2022-11-30 15:58:52 -08:00
zswap.c
mm/swap: remove the end_write_func argument to __swap_writepage
2022-09-11 20:25:50 -07:00