kernel-hacking-2024-linux-s.../lib
Linus Torvalds 27bc50fc90 - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
linux-next for a couple of months without, to my knowledge, any negative
   reports (or any positive ones, come to that).
 
 - Also the Maple Tree from Liam R.  Howlett.  An overlapping range-based
   tree for vmas.  It it apparently slight more efficient in its own right,
   but is mainly targeted at enabling work to reduce mmap_lock contention.
 
   Liam has identified a number of other tree users in the kernel which
   could be beneficially onverted to mapletrees.
 
   Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat
   (https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com).
   This has yet to be addressed due to Liam's unfortunately timed
   vacation.  He is now back and we'll get this fixed up.
 
 - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer.  It uses
   clang-generated instrumentation to detect used-unintialized bugs down to
   the single bit level.
 
   KMSAN keeps finding bugs.  New ones, as well as the legacy ones.
 
 - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of
   memory into THPs.
 
 - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to support
   file/shmem-backed pages.
 
 - userfaultfd updates from Axel Rasmussen
 
 - zsmalloc cleanups from Alexey Romanov
 
 - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and memory-failure
 
 - Huang Ying adds enhancements to NUMA balancing memory tiering mode's
   page promotion, with a new way of detecting hot pages.
 
 - memcg updates from Shakeel Butt: charging optimizations and reduced
   memory consumption.
 
 - memcg cleanups from Kairui Song.
 
 - memcg fixes and cleanups from Johannes Weiner.
 
 - Vishal Moola provides more folio conversions
 
 - Zhang Yi removed ll_rw_block() :(
 
 - migration enhancements from Peter Xu
 
 - migration error-path bugfixes from Huang Ying
 
 - Aneesh Kumar added ability for a device driver to alter the memory
   tiering promotion paths.  For optimizations by PMEM drivers, DRM
   drivers, etc.
 
 - vma merging improvements from Jakub Matěn.
 
 - NUMA hinting cleanups from David Hildenbrand.
 
 - xu xin added aditional userspace visibility into KSM merging activity.
 
 - THP & KSM code consolidation from Qi Zheng.
 
 - more folio work from Matthew Wilcox.
 
 - KASAN updates from Andrey Konovalov.
 
 - DAMON cleanups from Kaixu Xia.
 
 - DAMON work from SeongJae Park: fixes, cleanups.
 
 - hugetlb sysfs cleanups from Muchun Song.
 
 - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core.
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Merge tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in
   linux-next for a couple of months without, to my knowledge, any
   negative reports (or any positive ones, come to that).

 - Also the Maple Tree from Liam Howlett. An overlapping range-based
   tree for vmas. It it apparently slightly more efficient in its own
   right, but is mainly targeted at enabling work to reduce mmap_lock
   contention.

   Liam has identified a number of other tree users in the kernel which
   could be beneficially onverted to mapletrees.

   Yu Zhao has identified a hard-to-hit but "easy to fix" lockdep splat
   at [1]. This has yet to be addressed due to Liam's unfortunately
   timed vacation. He is now back and we'll get this fixed up.

 - Dmitry Vyukov introduces KMSAN: the Kernel Memory Sanitizer. It uses
   clang-generated instrumentation to detect used-unintialized bugs down
   to the single bit level.

   KMSAN keeps finding bugs. New ones, as well as the legacy ones.

 - Yang Shi adds a userspace mechanism (madvise) to induce a collapse of
   memory into THPs.

 - Zach O'Keefe has expanded Yang Shi's madvise(MADV_COLLAPSE) to
   support file/shmem-backed pages.

 - userfaultfd updates from Axel Rasmussen

 - zsmalloc cleanups from Alexey Romanov

 - cleanups from Miaohe Lin: vmscan, hugetlb_cgroup, hugetlb and
   memory-failure

 - Huang Ying adds enhancements to NUMA balancing memory tiering mode's
   page promotion, with a new way of detecting hot pages.

 - memcg updates from Shakeel Butt: charging optimizations and reduced
   memory consumption.

 - memcg cleanups from Kairui Song.

 - memcg fixes and cleanups from Johannes Weiner.

 - Vishal Moola provides more folio conversions

 - Zhang Yi removed ll_rw_block() :(

 - migration enhancements from Peter Xu

 - migration error-path bugfixes from Huang Ying

 - Aneesh Kumar added ability for a device driver to alter the memory
   tiering promotion paths. For optimizations by PMEM drivers, DRM
   drivers, etc.

 - vma merging improvements from Jakub Matěn.

 - NUMA hinting cleanups from David Hildenbrand.

 - xu xin added aditional userspace visibility into KSM merging
   activity.

 - THP & KSM code consolidation from Qi Zheng.

 - more folio work from Matthew Wilcox.

 - KASAN updates from Andrey Konovalov.

 - DAMON cleanups from Kaixu Xia.

 - DAMON work from SeongJae Park: fixes, cleanups.

 - hugetlb sysfs cleanups from Muchun Song.

 - Mike Kravetz fixes locking issues in hugetlbfs and in hugetlb core.

Link: https://lkml.kernel.org/r/CAOUHufZabH85CeUN-MEMgL8gJGzJEWUrkiM58JkTbBhh-jew0Q@mail.gmail.com [1]

* tag 'mm-stable-2022-10-08' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (555 commits)
  hugetlb: allocate vma lock for all sharable vmas
  hugetlb: take hugetlb vma_lock when clearing vma_lock->vma pointer
  hugetlb: fix vma lock handling during split vma and range unmapping
  mglru: mm/vmscan.c: fix imprecise comments
  mm/mglru: don't sync disk for each aging cycle
  mm: memcontrol: drop dead CONFIG_MEMCG_SWAP config symbol
  mm: memcontrol: use do_memsw_account() in a few more places
  mm: memcontrol: deprecate swapaccounting=0 mode
  mm: memcontrol: don't allocate cgroup swap arrays when memcg is disabled
  mm/secretmem: remove reduntant return value
  mm/hugetlb: add available_huge_pages() func
  mm: remove unused inline functions from include/linux/mm_inline.h
  selftests/vm: add selftest for MADV_COLLAPSE of uffd-minor memory
  selftests/vm: add file/shmem MADV_COLLAPSE selftest for cleared pmd
  selftests/vm: add thp collapse shmem testing
  selftests/vm: add thp collapse file and tmpfs testing
  selftests/vm: modularize thp collapse memory operations
  selftests/vm: dedup THP helpers
  mm/khugepaged: add tracepoint to hpage_collapse_scan_file()
  mm/madvise: add file and shmem support to MADV_COLLAPSE
  ...
2022-10-10 17:53:04 -07:00
..
842
crypto crypto: lib - remove unneeded selection of XOR_BLOCKS 2022-08-26 18:40:14 +08:00
dim
fonts
kunit kunit: add kunit.enable to enable/disable KUnit test 2022-09-30 13:17:39 -06:00
livepatch selftests/livepatch: better synchronize test_klp_callbacks_busy 2022-06-15 10:29:10 +02:00
lz4 lib: make LZ4_decompress_safe_forceExtDict() static 2022-07-17 17:31:39 -07:00
lzo lib/lzo/lzo1x_compress.c: replace ternary operator with min() and min_t() 2022-07-29 18:12:34 -07:00
math
mpi Updates to various subsystems which I help look after. lib, ocfs2, 2022-08-07 10:03:24 -07:00
pldmfw
raid6
reed_solomon
test_fortify
vdso
xz
zlib_deflate
zlib_dfltcc
zlib_inflate
zstd zstd: Fixing mixed module-builtin objects 2022-10-03 03:52:58 +09:00
.gitignore
argv_split.c
ashldi3.c
ashrdi3.c
asn1_decoder.c
asn1_encoder.c
assoc_array.c
atomic64.c
atomic64_test.c
audit.c
base64.c lib/base64: RFC4648-compliant base64 encoding 2022-08-02 17:14:47 -06:00
bcd.c
bch.c
bitfield_kunit.c
bitmap.c lib/bitmap: remove bitmap_ord_to_pos 2022-09-26 12:19:12 -07:00
bitrev.c
bootconfig-data.S
bootconfig.c
bsearch.c
btree.c lib/btree: simplify btree_{lookup|update} 2022-06-16 19:58:21 -07:00
bucket_locks.c
bug.c
build_OID_registry
buildid.c
bust_spinlocks.c kernel/panic: Drop unblank_screen call 2022-09-01 16:55:35 +02:00
check_signature.c
checksum.c
clz_ctz.c
clz_tab.c
cmdline.c
cmdline_kunit.c
cmpdi2.c
compat_audit.c
cpu_rmap.c
cpumask.c lib/find_bit: add find_next{,_and}_bit_wrap 2022-10-01 10:22:57 -07:00
cpumask_kunit.c lib/test_cpumask: Add for_each_cpu_and(not) tests 2022-10-06 05:57:36 -07:00
crc-ccitt.c
crc-itu-t.c crc-itu-t: fix typo in CRC ITU-T polynomial comment 2022-06-07 10:27:38 +02:00
crc-t10dif.c
crc4.c
crc7.c
crc8.c
crc16.c
crc32.c
crc32defs.h
crc32test.c
crc64-rocksoft.c
crc64.c
ctype.c
debug_info.c
debug_locks.c
debugobjects.c
dec_and_lock.c
decompress.c
decompress_bunzip2.c
decompress_inflate.c
decompress_unlz4.c
decompress_unlzma.c
decompress_unlzo.c
decompress_unxz.c
decompress_unzstd.c
devmem_is_allowed.c
devres.c devres: remove devm_ioremap_np 2022-09-01 18:04:43 +02:00
digsig.c
dump_stack.c
dynamic_debug.c dyndbg: add drm.debug style (drm/parameters/debug) bitmap support 2022-09-07 17:04:49 +02:00
dynamic_queue_limits.c
earlycpio.c
errname.c
error-inject.c lib/error-inject: traverse list with mutex 2022-07-17 17:31:38 -07:00
errseq.c
extable.c
fault-inject-usercopy.c
fault-inject.c
fdt.c
fdt_addresses.c
fdt_empty_tree.c
fdt_ro.c
fdt_rw.c
fdt_strerror.c
fdt_sw.c
fdt_wip.c
find_bit.c lib/find_bit: Introduce find_next_andnot_bit() 2022-10-06 05:57:36 -07:00
find_bit_benchmark.c lib/bitmap: add tests for find_nth_bit() 2022-09-26 12:19:12 -07:00
flex_proportions.c flex_proportions: Disable preemption entering the write section. 2022-09-19 14:35:08 +02:00
fortify_kunit.c fortify: Adjust KUnit test for modular build 2022-09-14 07:04:15 -07:00
gen_crc32table.c
gen_crc64table.c
genalloc.c
generic-radix-tree.c
glob.c
globtest.c
hexdump.c
hweight.c
idr.c ida: don't use BUG_ON() for debugging 2022-07-10 13:55:49 -07:00
inflate.c
interval_tree.c
interval_tree_test.c
iomap.c kmsan: add iomap support 2022-10-03 14:03:21 -07:00
iomap_copy.c
iommu-helper.c
iov_iter.c instrumented.h: allow instrumenting both sides of copy_from_user() 2022-10-03 14:03:18 -07:00
irq_poll.c
irq_regs.c
is_signed_type_kunit.c lib: Improve the is_signed_type() kunit test 2022-09-07 16:37:27 -07:00
is_single_threaded.c
kasprintf.c
Kconfig This update includes the following changes: 2022-10-10 13:04:25 -07:00
Kconfig.debug - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
Kconfig.kasan kasan: drop CONFIG_KASAN_TAGS_IDENTIFY 2022-10-03 14:02:57 -07:00
Kconfig.kcsan
Kconfig.kfence
Kconfig.kgdb
Kconfig.kmsan kmsan: add tests for KMSAN 2022-10-03 14:03:22 -07:00
Kconfig.ubsan ubsan: disable UBSAN_DIV_ZERO for clang 2022-07-14 15:45:26 -07:00
kfifo.c
klist.c
kobject.c
kobject_uevent.c
kstrtox.c
kstrtox.h
libcrc32c.c
linear_ranges.c
list-test.c
list_debug.c lib/list_debug.c: Detect uninitialized lists 2022-06-16 19:58:20 -07:00
list_sort.c
llist.c
locking-selftest-hardirq.h
locking-selftest-mutex.h
locking-selftest-rlock-hardirq.h
locking-selftest-rlock-softirq.h
locking-selftest-rlock.h
locking-selftest-rsem.h
locking-selftest-rtmutex.h
locking-selftest-softirq.h
locking-selftest-spin-hardirq.h
locking-selftest-spin-softirq.h
locking-selftest-spin.h
locking-selftest-wlock-hardirq.h
locking-selftest-wlock-softirq.h
locking-selftest-wlock.h
locking-selftest-wsem.h
locking-selftest.c
lockref.c lockref: remove unused 'lockref_get_or_lock()' function 2022-07-03 14:40:28 -07:00
logic_iomem.c
logic_pio.c
lru_cache.c lib/lru_cache: fix error free handing in lc_create 2022-07-17 17:31:37 -07:00
lshrdi3.c
Makefile - Yu Zhao's Multi-Gen LRU patches are here. They've been under test in 2022-10-10 17:53:04 -07:00
maple_tree.c Maple Tree: add new data structure 2022-09-26 19:46:13 -07:00
memcat_p.c
memcpy_kunit.c kunit/memcpy: Avoid pathological compile-time string size 2022-09-07 16:37:48 -07:00
memory-notifier-error-inject.c
memregion.c
memweight.c
muldi3.c
net_utils.c
netdev-notifier-error-inject.c
nlattr.c netlink: introduce NLA_POLICY_MAX_BE 2022-09-07 12:33:43 +01:00
nmi_backtrace.c
notifier-error-inject.c
notifier-error-inject.h
objagg.c
of-reconfig-notifier-error-inject.c
oid_registry.c
once.c once: rename _SLOW to _SLEEPABLE 2022-10-03 17:34:32 -07:00
overflow_kunit.c linux-kselftest-kunit-6.1-rc1 2022-10-06 12:57:55 -07:00
packing.c
parman.c
parser.c
pci_iomap.c
percpu-refcount.c
percpu_counter.c
percpu_test.c
plist.c
pm-notifier-error-inject.c
polynomial.c
radix-tree.c lib/radix-tree: remove unused argument of insert_entries 2022-07-17 17:31:38 -07:00
random32.c
ratelimit.c ratelimit: Fix data-races in ___ratelimit(). 2022-08-24 13:46:57 +01:00
rbtree.c
rbtree_test.c
ref_tracker.c
refcount.c
rhashtable.c
sbitmap.c sbitmap: fix lockup while swapping 2022-09-29 17:58:17 -06:00
scatterlist.c lib/scatterlist: use matched parameter type when calling __sg_free_table() 2022-07-17 17:31:39 -07:00
seq_buf.c
sg_pool.c lib/sg_pool: change module_init(sg_pool_init) to subsys_initcall 2022-09-23 16:46:19 +02:00
sg_split.c
show_mem.c mm: reduce noise in show_mem for lowmem allocations 2022-09-26 19:46:29 -07:00
siphash.c SPDX changes for 5.19-rc1 2022-06-03 10:34:34 -07:00
slub_kunit.c
smp_processor_id.c lib/smp_processor_id: fix imbalanced instrumentation_end() call 2022-07-17 17:31:41 -07:00
sort.c
stackdepot.c stackdepot: reserve 5 extra bits in depot_stack_handle_t 2022-10-03 14:03:18 -07:00
stackinit_kunit.c lib: stackinit: update reference to kunit-tool 2022-09-30 13:21:22 -06:00
stmp_device.c
string.c kmsan: disable strscpy() optimization under KMSAN 2022-10-03 14:03:22 -07:00
string_helpers.c lib/string_helpers: Introduce parse_int_array_user() 2022-09-05 14:51:46 +01:00
strncpy_from_user.c
strnlen_user.c
syscall.c
test-kstrtox.c
test-string_helpers.c
test_bitmap.c lib/bitmap: add tests for for_each() loops 2022-10-01 10:22:58 -07:00
test_bitops.c
test_bits.c
test_blackhole_dev.c
test_bpf.c test_bpf: fix incorrect netdev features 2022-06-22 19:20:20 -07:00
test_debug_virtual.c
test_dynamic_debug.c dyndbg: test DECLARE_DYNDBG_CLASSMAP, sysfs nodes 2022-09-07 17:04:49 +02:00
test_firmware.c
test_fprobe.c
test_fpu.c
test_free_pages.c lib/test_free_pages.c: pass a pointer to virt_to_page() 2022-07-17 17:14:36 -07:00
test_hash.c
test_hexdump.c
test_hmm.c mm/hmm/test: use char dev with struct device to get device node 2022-10-03 14:03:03 -07:00
test_hmm_uapi.h lib: add support for device coherent type in test_hmm 2022-07-17 17:14:29 -07:00
test_ida.c
test_kmod.c
test_kprobes.c
test_linear_ranges.c
test_list_sort.c
test_lockup.c
test_maple_tree.c lib/test_maple_tree: add testing for maple tree 2022-09-26 19:46:14 -07:00
test_memcat_p.c
test_meminit.c
test_min_heap.c
test_module.c
test_objagg.c
test_parman.c
test_printf.c lib/test_printf.c: fix clang -Wformat warnings 2022-07-28 10:38:30 +02:00
test_ref_tracker.c
test_rhashtable.c
test_scanf.c
test_siphash.c
test_sort.c
test_static_key_base.c
test_static_keys.c
test_string.c
test_strscpy.c
test_sysctl.c
test_ubsan.c
test_user_copy.c
test_uuid.c
test_vmalloc.c lib/test_vmalloc: switch to prandom_u32() 2022-07-03 18:08:42 -07:00
test_xarray.c
textsearch.c
timerqueue.c
trace_readwrite.c lib: Add register read/write tracing support 2022-06-15 17:41:12 +02:00
ts_bm.c lib/ts_bm.c: remove redundant store to variable consumed after addition 2022-07-17 17:31:39 -07:00
ts_fsm.c
ts_kmp.c
ubsan.c
ubsan.h
ucmpdi2.c
ucs2_string.c
usercopy.c instrumented.h: allow instrumenting both sides of copy_from_user() 2022-10-03 14:03:18 -07:00
uuid.c
vsprintf.c printk changes for 6.1 2022-10-10 11:24:19 -07:00
win_minmax.c
xarray.c mm/huge_memory: Fix xarray node memory leak 2022-06-09 16:24:25 -04:00
xxhash.c