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7c2af309abd24ff4e313246bf9b68f398d95c871
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Alexey RomanovandAndrew Morton 7c2af309ab zram: add size class equals check into recompression 
It makes no sense for us to recompress the object if it will be in the
same size class.  We anyway don't get any memory gain.  But, at the same
time, we get a CPU time overhead when inserting this object into zspage
and decompressing it afterwards.

[senozhatsky: rebased and fixed conflicts]
Link: https://lkml.kernel.org/r/20221109115047.2921851-9-senozhatsky@chromium.org
Signed-off-by: Alexey Romanov <avromanov@sberdevices.ru>
Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Acked-by: Minchan Kim <minchan@kernel.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Suleiman Souhlal <suleiman@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2022-11-30 15:58:52 -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
kfence: fix stack trace pruning
2022-11-22 18:50:44 -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: backing-dev: Remove the unneeded result variable
2022-09-11 20:26:02 -07:00
balloon_compaction.c
…
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
…
cma.h
…
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
…
early_ioremap.c
…
fadvise.c
…
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
mm,thp,rmap: simplify compound page mapcount handling
2022-11-30 15:58:46 -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
hugetlb: simplify hugetlb handling in follow_page_mask
2022-11-08 17:37:10 -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/autonuma: use can_change_(pte|pmd)_writable() to replace savedwrite
2022-11-30 15:58:49 -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
…
hugetlb.c
mm,thp,rmap: simplify compound page mapcount handling
2022-11-30 15:58:46 -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
…
Kconfig
mm,hugetlb: use folio fields in second tail page
2022-11-30 15:58:46 -08:00
Kconfig.debug
…
khugepaged.c
mm,thp,rmap: simplify compound page mapcount handling
2022-11-30 15:58:46 -08:00
kmemleak.c
mm/kmemleak: prevent soft lockup in kmemleak_scan()'s object iteration loops
2022-10-28 13:37:22 -07:00
ksm.c
mm/autonuma: use can_change_(pte|pmd)_writable() to replace savedwrite
2022-11-30 15:58:49 -08:00
list_lru.c
…
maccess.c
…
madvise.c
madvise: use zap_page_range_single for madvise dontneed
2022-11-30 14:49:40 -08:00
Makefile
mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol
2022-10-03 14:03:36 -07:00
mapping_dirty_helpers.c
…
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
…
memory_hotplug.c
mm: add pageblock_aligned() macro
2022-10-03 14:03:04 -07:00
memory-failure.c
mm,hugetlb: use folio fields in second tail page
2022-11-30 15:58:46 -08:00
memory-tiers.c
memory: move hotplug memory notifier priority to same file for easy sorting
2022-11-08 17:37:17 -08:00
memory.c
mm: mmu_gather: do not expose delayed_rmap flag
2022-11-30 15:58:50 -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/hugetlb: convert move_hugetlb_state() to folios
2022-11-30 15:58:43 -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
mm: mmu_gather: do not expose delayed_rmap flag
2022-11-30 15:58:50 -08:00
mmu_notifier.c
…
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,thp,rmap: subpages_mapcount COMPOUND_MAPPED if PMD-mapped
2022-11-30 15:58:48 -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
…
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: export balance_dirty_pages_ratelimited_flags()
2022-09-26 12:28:07 +02:00
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-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c
…
pgalloc-track.h
…
pgtable-generic.c
…
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: use pte markers for swap errors
2022-11-30 15:58:46 -08:00
shrinker_debug.c
…
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
…
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: vmscan: split khugepaged stats from direct reclaim stats
2022-11-30 15:58:41 -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
…
zbud.c
…
zpool.c
…
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