iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/mm
History
Kemeng Shi 27e0db3c21 mm/page_alloc: remove unnecessary check in break_down_buddy_pages 
Patch series "Two minor cleanups to break_down_buddy_pages", v2.

Two minor cleanups to break_down_buddy_pages.


This patch (of 2):

1. We always have target in range started with next_page and full free
   range started with current_buddy.

2. The last split range size is 1 << low and low should be >= 0, then
   size >= 1.  So page + size != page is always true (because size > 0). 
   As summary, current_page will not equal to target page.

Link: https://lkml.kernel.org/r/20230927103514.98281-1-shikemeng@huaweicloud.com
Link: https://lkml.kernel.org/r/20230927103514.98281-2-shikemeng@huaweicloud.com
Signed-off-by: Kemeng Shi <shikemeng@huaweicloud.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2023-10-18 14:34:15 -07:00
..
damon
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-10-18 14:32:58 -07:00
kasan
kasan: fix and update KUNIT_EXPECT_KASAN_FAIL comment
2023-10-18 14:34:15 -07:00
kfence
LoongArch changes for v6.6
2023-09-08 12:16:52 -07:00
kmsan
kmsan: introduce test_memcpy_initialized_gap()
2023-10-04 10:32:22 -07:00
backing-dev.c
writeback: remove redundant checks for root memcg
2023-08-21 13:37:48 -07:00
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
mm: cma: make kobj_type structure constant
2023-03-28 16:20:06 -07:00
cma.c
mm/cma: use nth_page() in place of direct struct page manipulation
2023-10-04 10:32:29 -07:00
cma.h
…
compaction.c
mm/compaction: factor out code to test if we should run compaction for target order
2023-10-04 10:32:19 -07:00
debug_page_alloc.c
mm: page_alloc: split out DEBUG_PAGEALLOC
2023-06-09 16:25:23 -07:00
debug_page_ref.c
…
debug_vm_pgtable.c
Add x86 shadow stack support
2023-08-31 12:20:12 -07:00
debug.c
mm: update validate_mm() to use vma iterator
2023-06-09 16:25:31 -07:00
dmapool_test.c
dmapool: add alloc/free performance test
2023-04-05 19:42:38 -07:00
dmapool.c
dmapool: create/destroy cleanup
2023-06-09 16:25:17 -07:00
early_ioremap.c
mm/early_ioremap.c: improve the execution efficiency of early_ioremap_setup()
2023-06-09 16:25:56 -07:00
fadvise.c
mm: remove unnecessary pagevec includes
2023-06-23 16:59:31 -07:00
fail_page_alloc.c
mm: page_alloc: split out FAIL_PAGE_ALLOC
2023-06-09 16:25:23 -07:00
failslab.c
mm: fix unexpected changes to {failslab|fail_page_alloc}.attr
2022-11-22 18:50:44 -08:00
filemap.c
mm: make lock_folio_maybe_drop_mmap() VMA lock aware
2023-10-18 14:34:14 -07:00
folio-compat.c
filemap: Add fgf_t typedef
2023-07-24 18:04:30 -04:00
gup_test.c
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-06-23 16:58:19 -07:00
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: make failure to pin an error if FOLL_NOWAIT not specified
2023-10-18 14:34:15 -07:00
highmem.c
mm: ptep_get() conversion
2023-06-19 16:19:25 -07:00
hmm.c
mm: enable page walking API to lock vmas during the walk
2023-08-21 13:07:20 -07:00
huge_memory.c
mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap()
2023-10-18 14:34:14 -07:00
hugetlb_cgroup.c
mm/hugetlb: increase use of folios in alloc_huge_page()
2023-02-13 15:54:27 -08:00
hugetlb_vmemmap.c
mm: hugetlb: skip initialization of gigantic tail struct pages if freed by HVO
2023-10-04 10:32:30 -07:00
hugetlb_vmemmap.h
mm: hugetlb: skip initialization of gigantic tail struct pages if freed by HVO
2023-10-04 10:32:30 -07:00
hugetlb.c
mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap()
2023-10-18 14:34:14 -07:00
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: move dummy_vm_ops out of a header
2023-08-21 13:37:46 -07:00
internal.h
mm/gup: explicitly define and check internal GUP flags, disallow FOLL_TOUCH
2023-10-18 14:34:15 -07:00
interval_tree.c
…
io-mapping.c
…
ioremap.c
mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed
2023-08-18 10:12:36 -07:00
Kconfig
zswap: change zswap's default allocator to zsmalloc
2023-10-04 10:32:20 -07:00
Kconfig.debug
mm: page_table_check: Make it dependent on EXCLUSIVE_SYSTEM_RAM
2023-05-29 16:14:28 +01:00
khugepaged.c
- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")
2023-08-29 14:25:26 -07:00
kmemleak.c
mm/kmemleak: move up cond_resched() call in page scanning loop
2023-09-02 15:17:34 -07:00
ksm.c
mm/ksm: add pages_skipped metric
2023-10-16 15:44:39 -07:00
list_lru.c
…
maccess.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
madvise.c
mm: remove remnants of SPLIT_RSS_COUNTING
2023-10-04 10:32:20 -07:00
Makefile
mm: vmscan: move shrinker-related code into a separate file
2023-10-04 10:32:23 -07:00
mapping_dirty_helpers.c
mm: fix clean_record_shared_mapping_range kernel-doc
2023-08-24 16:20:30 -07:00
memblock.c
memblock: introduce MEMBLOCK_RSRV_NOINIT flag
2023-10-04 10:32:30 -07:00
memcontrol.c
mm: memcg: normalize the value passed into memcg_rstat_updated()
2023-10-18 14:34:12 -07:00
memfd.c
memfd: drop warning for missing exec-related flags
2023-10-04 10:32:22 -07:00
memory_hotplug.c
mm/memory_hotplug: use pfn math in place of direct struct page manipulation
2023-10-04 10:32:29 -07:00
memory-failure.c
mm: convert DAX lock/unlock page to lock/unlock folio
2023-10-04 10:32:20 -07:00
memory-tiers.c
dax, kmem: calculate abstract distance with general interface
2023-10-16 15:44:39 -07:00
memory.c
mm/gup: adapt get_user_page_vma_remote() to never return NULL
2023-10-18 14:34:15 -07:00
mempolicy.c
Merge mm-hotfixes-stable into mm-stable to pick up depended-upon changes.
2023-10-18 14:32:58 -07:00
mempool.c
mempool: do not use ksize() for poisoning
2022-11-30 15:58:41 -08:00
memremap.c
mm/memremap.c: fix outdated comment in devm_memremap_pages
2023-02-09 16:51:46 -08:00
memtest.c
mm: memtest: convert to memtest_report_meminfo()
2023-08-21 13:37:47 -07:00
migrate_device.c
Add x86 shadow stack support
2023-08-31 12:20:12 -07:00
migrate.c
mm/migrate: remove unused mm argument from do_move_pages_to_node
2023-10-18 14:34:14 -07:00
mincore.c
mm: enable page walking API to lock vmas during the walk
2023-08-21 13:07:20 -07:00
mlock.c
mm: mlock: update mlock_pte_range to handle large folio
2023-10-04 10:32:32 -07:00
mm_init.c
mm: hugetlb: skip initialization of gigantic tail struct pages if freed by HVO
2023-10-04 10:32:30 -07:00
mm_slot.h
mm: introduce common struct mm_slot
2022-10-03 14:02:43 -07:00
mmap_lock.c
…
mmap.c
mmap: add clarifying comment to vma_merge() code
2023-10-18 14:34:15 -07:00
mmu_gather.c
mm: fix kernel-doc warning from tlb_flush_rmaps()
2023-08-24 16:20:30 -07:00
mmu_notifier.c
mmu_notifiers: rename invalidate_range notifier
2023-08-18 10:12:41 -07:00
mmzone.c
mm: multi-gen LRU: groundwork
2022-09-26 19:46:09 -07:00
mprotect.c
Add x86 shadow stack support
2023-08-31 12:20:12 -07:00
mremap.c
mm/mremap: allow moves within the same VMA for stack moves
2023-10-04 10:32:20 -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: make __access_remote_vm() static
2023-10-18 14:34:15 -07:00
oom_kill.c
mm: remove redundant K() macro definition
2023-08-21 13:37:44 -07:00
page_alloc.c
mm/page_alloc: remove unnecessary check in break_down_buddy_pages
2023-10-18 14:34:15 -07:00
page_counter.c
mm: page_counter: remove unneeded atomic ops for low/min
2022-09-11 20:26:01 -07:00
page_ext.c
mm/page_ext: move functions around for minor cleanups to page_ext
2023-08-18 10:12:31 -07:00
page_idle.c
mm: page_idle: convert page idle to use a folio
2023-01-18 17:12:52 -08:00
page_io.c
mm: memcg: add THP swap out info for anonymous reclaim
2023-10-04 10:32:27 -07:00
page_isolation.c
mm/hugetlb: get rid of page_hstate()
2023-08-18 10:12:39 -07:00
page_owner.c
mm/page_ext: use page_ext_data helper in page_owner
2023-08-21 13:37:27 -07:00
page_poison.c
mm/page_poison: remove unused page_ext.h from page_poison
2023-08-21 13:37:30 -07:00
page_reporting.c
mm, treewide: redefine MAX_ORDER sanely
2023-04-05 19:42:46 -07:00
page_reporting.h
…
page_table_check.c
mm: convert page_table_check_pte_set() to page_table_check_ptes_set()
2023-08-24 16:20:18 -07:00
page_vma_mapped.c
mm: correct stale comment of function check_pte
2023-08-18 10:12:13 -07:00
page-writeback.c
mm/writeback: update filemap_dirty_folio() comment
2023-10-04 10:32:32 -07:00
pagewalk.c
mm/pagewalk: fix bootstopping regression from extra pte_unmap()
2023-09-02 08:39:21 -07:00
percpu-internal.h
percpu-internal/pcpu_chunk: re-layout pcpu_chunk structure to reduce false sharing
2023-06-19 16:19:29 -07:00
percpu-km.c
…
percpu-stats.c
…
percpu-vm.c
…
percpu.c
mm/percpu.c: print error message too if atomic alloc failed
2023-08-25 08:04:59 -07:00
pgalloc-track.h
…
pgtable-generic.c
mm/pgtable: notes on pte_offset_map[_lock]()
2023-08-18 10:12:25 -07:00
process_vm_access.c
mm/gup: remove unused vmas parameter from pin_user_pages_remote()
2023-06-09 16:25:25 -07:00
ptdump.c
mm: ptdump should use ptep_get_lockless()
2023-06-19 16:19:24 -07:00
readahead.c
filemap: Allow __filemap_get_folio to allocate large folios
2023-07-24 18:04:30 -04:00
rmap.c
mm/rmap: convert page_move_anon_rmap() to folio_move_anon_rmap()
2023-10-18 14:34:14 -07:00
rodata_test.c
mm/rodata_test: use PAGE_ALIGNED() helper
2022-10-03 14:03:05 -07:00
secretmem.c
mm/secretmem: use a folio in secretmem_fault()
2023-08-21 13:38:02 -07:00
shmem_quota.c
shmem: Add default quota limit mount options
2023-08-09 09:15:40 +02:00
shmem.c
shmem,percpu_counter: add _limited_add(fbc, limit, amount)
2023-10-18 14:34:14 -07:00
show_mem.c
mm: refactor si_mem_available()
2023-10-04 10:32:19 -07:00
shrinker_debug.c
mm: shrinker: convert shrinker_rwsem to mutex
2023-10-04 10:32:26 -07:00
shrinker.c
mm: shrinker: convert shrinker_rwsem to mutex
2023-10-04 10:32:26 -07:00
shuffle.c
mm/shuffle: convert module_param_call to module_param_cb
2022-10-03 14:03:07 -07:00
shuffle.h
mm, treewide: redefine MAX_ORDER sanely
2023-04-05 19:42:46 -07:00
slab_common.c
slab fixes for 6.6-rc4
2023-09-29 12:10:12 -07:00
slab.c
Randomized slab caches for kmalloc()
2023-07-18 10:07:47 +02:00
slab.h
Randomized slab caches for kmalloc()
2023-07-18 10:07:47 +02:00
slub.c
mm/slub: remove freelist_dereference()
2023-07-14 09:57:21 +02:00
sparse-vmemmap.c
mm/vmemmap: allow architectures to override how vmemmap optimization works
2023-08-18 10:12:53 -07:00
sparse.c
mm/sparse: remove redundant judgments from macro for_each_present_section_nr
2023-08-18 10:12:14 -07:00
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/swap: inline folio_set_swap_entry() and folio_swap_entry()
2023-08-24 16:20:28 -07:00
swap.c
mm: remove references to pagevec
2023-06-23 16:59:30 -07:00
swap.h
swap: remove remnants of polling from read_swap_cache_async
2023-08-24 16:20:16 -07:00
swapfile.c
mm/swap: inline folio_set_swap_entry() and folio_swap_entry()
2023-08-24 16:20:28 -07:00
truncate.c
- Some swap cleanups from Ma Wupeng ("fix WARN_ON in add_to_avail_list")
2023-08-29 14:25:26 -07:00
usercopy.c
mm: Fix copy_from_user_nofault().
2023-04-12 17:36:23 -07:00
userfaultfd.c
Add x86 shadow stack support
2023-08-31 12:20:12 -07:00
util.c
rcu: dump vmalloc memory info safely
2023-09-05 10:13:45 -07:00
vmalloc.c
mm: hugetlb: add huge page size param to set_huge_pte_at()
2023-09-29 17:20:47 -07:00
vmpressure.c
net-memcg: Fix scope of sockmem pressure indicators
2023-08-16 12:21:32 +01:00
vmscan.c
mm: multi-gen LRU: reuse some legacy trace events
2023-10-18 14:34:14 -07:00
vmstat.c
mm/vmstat: use this_cpu_try_cmpxchg in mod_{zone,node}_state
2023-10-04 10:32:20 -07:00
workingset.c
mm: workingset: dynamically allocate the mm-shadow shrinker
2023-10-04 10:32:24 -07:00
z3fold.c
mm/z3fold: remove obsolete comment for struct z3fold_pool
2023-08-21 13:37:51 -07:00
zbud.c
mm: zswap: remove shrink from zpool interface
2023-06-19 16:19:27 -07:00
zpool.c
mm: zswap: remove shrink from zpool interface
2023-06-19 16:19:27 -07:00
zsmalloc.c
zsmalloc: dynamically allocate the mm-zspool shrinker
2023-10-04 10:32:26 -07:00
zswap.c
mm: zswap: fix pool refcount bug around shrink_worker()
2023-10-18 12:12:40 -07:00