Merge tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel...

Pull MM updates from Andrew Morton:

 - In the series "mm: Avoid possible overflows in dirty throttling" Jan
   Kara addresses a couple of issues in the writeback throttling code.
   These fixes are also targetted at -stable kernels.

 - Ryusuke Konishi's series "nilfs2: fix potential issues related to
   reserved inodes" does that. This should actually be in the
   mm-nonmm-stable tree, along with the many other nilfs2 patches. My
   bad.

 - More folio conversions from Kefeng Wang in the series "mm: convert to
   folio_alloc_mpol()"

 - Kemeng Shi has sent some cleanups to the writeback code in the series
   "Add helper functions to remove repeated code and improve readability
   of cgroup writeback"

 - Kairui Song has made the swap code a little smaller and a little
   faster in the series "mm/swap: clean up and optimize swap cache
   index".

 - In the series "mm/memory: cleanly support zeropage in
   vm_insert_page*(), vm_map_pages*() and vmf_insert_mixed()" David
   Hildenbrand has reworked the rather sketchy handling of the use of
   the zeropage in MAP_SHARED mappings. I don't see any runtime effects
   here - more a cleanup/understandability/maintainablity thing.

 - Dev Jain has improved selftests/mm/va_high_addr_switch.c's handling
   of higher addresses, for aarch64. The (poorly named) series is
   "Restructure va_high_addr_switch".

 - The core TLB handling code gets some cleanups and possible slight
   optimizations in Bang Li's series "Add update_mmu_tlb_range() to
   simplify code".

 - Jane Chu has improved the handling of our
   fake-an-unrecoverable-memory-error testing feature MADV_HWPOISON in
   the series "Enhance soft hwpoison handling and injection".

 - Jeff Johnson has sent a billion patches everywhere to add
   MODULE_DESCRIPTION() to everything. Some landed in this pull.

 - In the series "mm: cleanup MIGRATE_SYNC_NO_COPY mode", Kefeng Wang
   has simplified migration's use of hardware-offload memory copying.

 - Yosry Ahmed performs more folio API conversions in his series "mm:
   zswap: trivial folio conversions".

 - In the series "large folios swap-in: handle refault cases first",
   Chuanhua Han inches us forward in the handling of large pages in the
   swap code. This is a cleanup and optimization, working toward the end
   objective of full support of large folio swapin/out.

 - In the series "mm,swap: cleanup VMA based swap readahead window
   calculation", Huang Ying has contributed some cleanups and a possible
   fixlet to his VMA based swap readahead code.

 - In the series "add mTHP support for anonymous shmem" Baolin Wang has
   taught anonymous shmem mappings to use multisize THP. By default this
   is a no-op - users must opt in vis sysfs controls. Dramatic
   improvements in pagefault latency are realized.

 - David Hildenbrand has some cleanups to our remaining use of
   page_mapcount() in the series "fs/proc: move page_mapcount() to
   fs/proc/internal.h".

 - David also has some highmem accounting cleanups in the series
   "mm/highmem: don't track highmem pages manually".

 - Build-time fixes and cleanups from John Hubbard in the series
   "cleanups, fixes, and progress towards avoiding "make headers"".

 - Cleanups and consolidation of the core pagemap handling from Barry
   Song in the series "mm: introduce pmd|pte_needs_soft_dirty_wp helpers
   and utilize them".

 - Lance Yang's series "Reclaim lazyfree THP without splitting" has
   reduced the latency of the reclaim of pmd-mapped THPs under fairly
   common circumstances. A 10x speedup is seen in a microbenchmark.

   It does this by punting to aother CPU but I guess that's a win unless
   all CPUs are pegged.

 - hugetlb_cgroup cleanups from Xiu Jianfeng in the series
   "mm/hugetlb_cgroup: rework on cftypes".

 - Miaohe Lin's series "Some cleanups for memory-failure" does just that
   thing.

 - Someone other than SeongJae has developed a DAMON feature in Honggyu
   Kim's series "DAMON based tiered memory management for CXL memory".
   This adds DAMON features which may be used to help determine the
   efficiency of our placement of CXL/PCIe attached DRAM.

 - DAMON user API centralization and simplificatio work in SeongJae
   Park's series "mm/damon: introduce DAMON parameters online commit
   function".

 - In the series "mm: page_type, zsmalloc and page_mapcount_reset()"
   David Hildenbrand does some maintenance work on zsmalloc - partially
   modernizing its use of pageframe fields.

 - Kefeng Wang provides more folio conversions in the series "mm: remove
   page_maybe_dma_pinned() and page_mkclean()".

 - More cleanup from David Hildenbrand, this time in the series
   "mm/memory_hotplug: use PageOffline() instead of PageReserved() for
   !ZONE_DEVICE". It "enlightens memory hotplug more about PageOffline()
   pages" and permits the removal of some virtio-mem hacks.

 - Barry Song's series "mm: clarify folio_add_new_anon_rmap() and
   __folio_add_anon_rmap()" is a cleanup to the anon folio handling in
   preparation for mTHP (multisize THP) swapin.

 - Kefeng Wang's series "mm: improve clear and copy user folio"
   implements more folio conversions, this time in the area of large
   folio userspace copying.

 - The series "Docs/mm/damon/maintaier-profile: document a mailing tool
   and community meetup series" tells people how to get better involved
   with other DAMON developers. From SeongJae Park.

 - A large series ("kmsan: Enable on s390") from Ilya Leoshkevich does
   that.

 - David Hildenbrand sends along more cleanups, this time against the
   migration code. The series is "mm/migrate: move NUMA hinting fault
   folio isolation + checks under PTL".

 - Jan Kara has found quite a lot of strangenesses and minor errors in
   the readahead code. He addresses this in the series "mm: Fix various
   readahead quirks".

 - SeongJae Park's series "selftests/damon: test DAMOS tried regions and
   {min,max}_nr_regions" adds features and addresses errors in DAMON's
   self testing code.

 - Gavin Shan has found a userspace-triggerable WARN in the pagecache
   code. The series "mm/filemap: Limit page cache size to that supported
   by xarray" addresses this. The series is marked cc:stable.

 - Chengming Zhou's series "mm/ksm: cmp_and_merge_page() optimizations
   and cleanup" cleans up and slightly optimizes KSM.

 - Roman Gushchin has separated the memcg-v1 and memcg-v2 code - lots of
   code motion. The series (which also makes the memcg-v1 code
   Kconfigurable) are "mm: memcg: separate legacy cgroup v1 code and put
   under config option" and "mm: memcg: put cgroup v1-specific memcg
   data under CONFIG_MEMCG_V1"

 - Dan Schatzberg's series "Add swappiness argument to memory.reclaim"
   adds an additional feature to this cgroup-v2 control file.

 - The series "Userspace controls soft-offline pages" from Jiaqi Yan
   permits userspace to stop the kernel's automatic treatment of
   excessive correctable memory errors. In order to permit userspace to
   monitor and handle this situation.

 - Kefeng Wang's series "mm: migrate: support poison recover from
   migrate folio" teaches the kernel to appropriately handle migration
   from poisoned source folios rather than simply panicing.

 - SeongJae Park's series "Docs/damon: minor fixups and improvements"
   does those things.

 - In the series "mm/zsmalloc: change back to per-size_class lock"
   Chengming Zhou improves zsmalloc's scalability and memory
   utilization.

 - Vivek Kasireddy's series "mm/gup: Introduce memfd_pin_folios() for
   pinning memfd folios" makes the GUP code use FOLL_PIN rather than
   bare refcount increments. So these paes can first be moved aside if
   they reside in the movable zone or a CMA block.

 - Andrii Nakryiko has added a binary ioctl()-based API to
   /proc/pid/maps for much faster reading of vma information. The series
   is "query VMAs from /proc/<pid>/maps".

 - In the series "mm: introduce per-order mTHP split counters" Lance
   Yang improves the kernel's presentation of developer information
   related to multisize THP splitting.

 - Michael Ellerman has developed the series "Reimplement huge pages
   without hugepd on powerpc (8xx, e500, book3s/64)". This permits
   userspace to use all available huge page sizes.

 - In the series "revert unconditional slab and page allocator fault
   injection calls" Vlastimil Babka removes a performance-affecting and
   not very useful feature from slab fault injection.

* tag 'mm-stable-2024-07-21-14-50' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (411 commits)
  mm/mglru: fix ineffective protection calculation
  mm/zswap: fix a white space issue
  mm/hugetlb: fix kernel NULL pointer dereference when migrating hugetlb folio
  mm/hugetlb: fix possible recursive locking detected warning
  mm/gup: clear the LRU flag of a page before adding to LRU batch
  mm/numa_balancing: teach mpol_to_str about the balancing mode
  mm: memcg1: convert charge move flags to unsigned long long
  alloc_tag: fix page_ext_get/page_ext_put sequence during page splitting
  lib: reuse page_ext_data() to obtain codetag_ref
  lib: add missing newline character in the warning message
  mm/mglru: fix overshooting shrinker memory
  mm/mglru: fix div-by-zero in vmpressure_calc_level()
  mm/kmemleak: replace strncpy() with strscpy()
  mm, page_alloc: put should_fail_alloc_page() back behing CONFIG_FAIL_PAGE_ALLOC
  mm, slab: put should_failslab() back behind CONFIG_SHOULD_FAILSLAB
  mm: ignore data-race in __swap_writepage
  hugetlbfs: ensure generic_hugetlb_get_unmapped_area() returns higher address than mmap_min_addr
  mm: shmem: rename mTHP shmem counters
  mm: swap_state: use folio_alloc_mpol() in __read_swap_cache_async()
  mm/migrate: putback split folios when numa hint migration fails
  ...

diff --cc Documentation/admin-guide/cgroup-v2.rst
Simple merge

diff --cc Documentation/admin-guide/kernel-parameters.txt
Simple merge

diff --cc MAINTAINERS
Simple merge

diff --cc arch/powerpc/Kconfig
Simple merge

diff --cc arch/powerpc/mm/init-common.c
Simple merge

diff --cc arch/powerpc/mm/nohash/Makefile
index 86d0fe4348245adc897263862efa63f7b9b054ef,90e846f0c46c70b8bbbddc8b0aba4a3e753b304c..cf60c776c88309f443e1fa49b3a8e54e6e8f69a8
--- 1/arch/powerpc/mm/nohash/Makefile
--- 2/arch/powerpc/mm/nohash/Makefile
+++ b/arch/powerpc/mm/nohash/Makefile
@@@ -1,7 -1,8 +1,7 @@@
  # SPDX-License-Identifier: GPL-2.0
  
  obj-y                         += mmu_context.o tlb.o tlb_low.o kup.o
- obj-$(CONFIG_PPC_BOOK3E_64)   += tlb_low_64e.o book3e_pgtable.o
+ obj-$(CONFIG_PPC_BOOK3E_64)   += tlb_64e.o tlb_low_64e.o book3e_pgtable.o
 -obj-$(CONFIG_40x)             += 40x.o
  obj-$(CONFIG_44x)             += 44x.o
  obj-$(CONFIG_PPC_8xx)         += 8xx.o
  obj-$(CONFIG_PPC_E500)                += e500.o

diff --cc arch/riscv/include/asm/pgtable.h
Simple merge

diff --cc arch/s390/Kconfig
Simple merge

diff --cc arch/s390/boot/startup.c
Simple merge

diff --cc arch/s390/include/asm/pgtable.h
Simple merge

diff --cc arch/s390/kernel/diag.c
Simple merge

diff --cc arch/s390/kernel/traps.c
Simple merge

diff --cc arch/s390/mm/hugetlbpage.c
Simple merge

diff --cc arch/x86/mm/init_64.c
Simple merge

diff --cc arch/x86/mm/pat/set_memory.c
Simple merge

diff --cc drivers/acpi/numa/hmat.c
index febd9e51350b16fb7fffaefd21a98198a89028ec,a2f9e7a4b4794f3214d3a070ee0d816decbe5f73..1a902a02390f6d7809cbc71434a976bcea02e9a2
--- 1/drivers/acpi/numa/hmat.c
--- 2/drivers/acpi/numa/hmat.c
+++ b/drivers/acpi/numa/hmat.c
@@@ -933,7 -933,7 +933,7 @@@ static int hmat_callback(struct notifie
        return NOTIFY_OK;
  }
  
--static int hmat_set_default_dram_perf(void)
++static int __init hmat_set_default_dram_perf(void)
  {
        int rc;
        int nid, pxm;

diff --cc drivers/video/fbdev/core/fb_defio.c
Simple merge

diff --cc fs/aio.c
Simple merge

diff --cc fs/btrfs/relocation.c
Simple merge

diff --cc fs/btrfs/send.c
Simple merge

diff --cc fs/hugetlbfs/inode.c
Simple merge

diff --cc fs/netfs/buffered_read.c
index 4c0401dbbfcfafafcecb95ef945a967e83bb8f8e,a688d4c75d9926864ae80d2d26a7e1ed6a34ac3d..a6d5d07cd4369f3538a6b493ebbbe43ab351829b
--- 1/fs/netfs/buffered_read.c
--- 2/fs/netfs/buffered_read.c
+++ b/fs/netfs/buffered_read.c
@@@ -268,10 -268,10 +268,10 @@@ int netfs_read_folio(struct file *file
        struct folio *sink = NULL;
        int ret;
  
 -      _enter("%lx", folio->index);
 +      kenter("%lx", folio->index);
  
        rreq = netfs_alloc_request(mapping, file,
-                                  folio_file_pos(folio), folio_size(folio),
+                                  folio_pos(folio), folio_size(folio),
                                   NETFS_READPAGE);
        if (IS_ERR(rreq)) {
                ret = PTR_ERR(rreq);

diff --cc fs/netfs/buffered_write.c
index ecbc99ec7d367a3f9cb6d36b34332e156dbf7c05,8294da4af52fac4d71394ae79686f65b9f6515ac..68a3f1383cee31faf4ce96d51dedc7d739b3fc2f
--- 1/fs/netfs/buffered_write.c
--- 2/fs/netfs/buffered_write.c
+++ b/fs/netfs/buffered_write.c
@@@ -54,9 -54,9 +54,9 @@@ static enum netfs_how_to_modify netfs_h
  {
        struct netfs_folio *finfo = netfs_folio_info(folio);
        struct netfs_group *group = netfs_folio_group(folio);
-       loff_t pos = folio_file_pos(folio);
+       loff_t pos = folio_pos(folio);
  
 -      _enter("");
 +      kenter("");
  
        if (group != netfs_group && group != NETFS_FOLIO_COPY_TO_CACHE)
                return NETFS_FLUSH_CONTENT;

diff --cc fs/nfs/file.c
Simple merge

diff --cc fs/nfs/write.c
index 190c1fa8882c57696b54367826f6b4f8aedbc0b1,3573cdc4b28f47e764a56249a9d3ce883f6d7a45..d074d0ceb4f016acf7290d4d2ba44efad254f5bd
--- 1/fs/nfs/write.c
--- 2/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@@ -180,9 -279,9 +180,9 @@@ static void nfs_grow_file(struct folio 
        spin_lock(&inode->i_lock);
        i_size = i_size_read(inode);
        end_index = ((i_size - 1) >> folio_shift(folio)) << folio_order(folio);
 -      if (i_size > 0 && folio_index(folio) < end_index)
 +      if (i_size > 0 && folio->index < end_index)
                goto out;
-       end = folio_file_pos(folio) + (loff_t)offset + (loff_t)count;
+       end = folio_pos(folio) + (loff_t)offset + (loff_t)count;
        if (i_size >= end)
                goto out;
        trace_nfs_size_grow(inode, end);

diff --cc include/linux/bpf.h
Simple merge

diff --cc include/linux/cgroup-defs.h
Simple merge

diff --cc include/linux/hid_bpf.h
index 9ca96fc904491622d8693ce208c77790cbed0999,99a3edb6cf0702a426690ba9d8252e4061835a5e..d4d063cf63b56cae15ee8544d0323acdf6b552ac
--- 1/include/linux/hid_bpf.h
--- 2/include/linux/hid_bpf.h
+++ b/include/linux/hid_bpf.h
@@@ -227,7 -151,12 +227,12 @@@ static inline int dispatch_hid_bpf_outp
  static inline int hid_bpf_connect_device(struct hid_device *hdev) { return 0; }
  static inline void hid_bpf_disconnect_device(struct hid_device *hdev) {}
  static inline void hid_bpf_destroy_device(struct hid_device *hid) {}
 -static inline void hid_bpf_device_init(struct hid_device *hid) {}
 +static inline int hid_bpf_device_init(struct hid_device *hid) { return 0; }
+ /*
+  * This specialized allocator has to be a macro for its allocations to be
+  * accounted separately (to have a separate alloc_tag). The typecast is
+  * intentional to enforce typesafety.
+  */
  #define call_hid_bpf_rdesc_fixup(_hdev, _rdesc, _size)        \
                ((u8 *)kmemdup(_rdesc, *(_size), GFP_KERNEL))
  

diff --cc include/linux/jbd2.h
Simple merge

diff --cc include/linux/memblock.h
Simple merge

diff --cc include/linux/mm.h
Simple merge

diff --cc include/linux/mm_types.h
Simple merge

diff --cc include/linux/pagemap.h
Simple merge

diff --cc include/linux/sched.h
Simple merge

diff --cc include/linux/skbuff.h
Simple merge

diff --cc include/linux/slab.h
Simple merge

diff --cc include/uapi/linux/fs.h
index 191a7e88a8ab7da7426ba4f1f73e287eb2c570f8,2a4a5f50c98ecfddfa2551958d72719374ed30e3..7539717707337a8cb22396a869baba3bafa08371
--- 1/include/uapi/linux/fs.h
--- 2/include/uapi/linux/fs.h
+++ b/include/uapi/linux/fs.h
@@@ -329,15 -329,14 +329,17 @@@ typedef int __bitwise __kernel_rwf_t
  /* per-IO negation of O_APPEND */
  #define RWF_NOAPPEND  ((__force __kernel_rwf_t)0x00000020)
  
 +/* Atomic Write */
 +#define RWF_ATOMIC    ((__force __kernel_rwf_t)0x00000040)
 +
  /* mask of flags supported by the kernel */
  #define RWF_SUPPORTED (RWF_HIPRI | RWF_DSYNC | RWF_SYNC | RWF_NOWAIT |\
 -                       RWF_APPEND | RWF_NOAPPEND)
 +                       RWF_APPEND | RWF_NOAPPEND | RWF_ATOMIC)
  
+ #define PROCFS_IOCTL_MAGIC 'f'
+ 
  /* Pagemap ioctl */
- #define PAGEMAP_SCAN  _IOWR('f', 16, struct pm_scan_arg)
+ #define PAGEMAP_SCAN  _IOWR(PROCFS_IOCTL_MAGIC, 16, struct pm_scan_arg)
  
  /* Bitmasks provided in pm_scan_args masks and reported in page_region.categories. */
  #define PAGE_IS_WPALLOWED     (1 << 0)

diff --cc init/Kconfig
Simple merge

diff --cc kernel/bpf/syscall.c
Simple merge

diff --cc kernel/bpf/verifier.c
Simple merge

diff --cc kernel/events/core.c
Simple merge

diff --cc kernel/events/uprobes.c
Simple merge

diff --cc kernel/exit.c
Simple merge

diff --cc kernel/fork.c
Simple merge

diff --cc kernel/trace/ftrace.c
Simple merge

diff --cc mm/Kconfig
Simple merge

diff --cc mm/filemap.c
Simple merge

diff --cc mm/hugetlb.c
Simple merge

diff --cc mm/khugepaged.c
Simple merge

diff --cc mm/migrate.c
Simple merge

diff --cc mm/mm_init.c
Simple merge

diff --cc mm/shmem.c
Simple merge

diff --cc mm/slab.h
Simple merge

diff --cc mm/slab_common.c
Simple merge

diff --cc mm/slub.c
index 829a1f08e8a266a0add31cb94324f71bad33655e,b5aaaa3ca756c20b89b469f0b38972c95384f58b..3520acaf9afaf356e7bc149a9ca6ea25340d3dec
--- 1/mm/slub.c
--- 2/mm/slub.c
+++ b/mm/slub.c
@@@ -2123,10 -2102,9 +2140,10 @@@ alloc_tagging_slab_free_hook(struct kme
  {
  }
  
 -#endif /* CONFIG_SLAB_OBJ_EXT */
 +#endif /* CONFIG_MEM_ALLOC_PROFILING */
 +
  
- #ifdef CONFIG_MEMCG_KMEM
+ #ifdef CONFIG_MEMCG
  
  static void memcg_alloc_abort_single(struct kmem_cache *s, void *object);
  

diff --cc mm/truncate.c
Simple merge

diff --cc mm/util.c
Simple merge

diff --cc tools/testing/selftests/exec/Makefile
index ab67d58cfab7ce2b3748e02918a5702eda186c56,c5bdb653422b2489815fa148a7c11e32eac53e23..ba012bc5aab9f69f3577c1b75535bc68272ba2d1
--- 1/tools/testing/selftests/exec/Makefile
--- 2/tools/testing/selftests/exec/Makefile
+++ b/tools/testing/selftests/exec/Makefile
@@@ -1,15 -1,9 +1,14 @@@
  # SPDX-License-Identifier: GPL-2.0
  CFLAGS = -Wall
  CFLAGS += -Wno-nonnull
- CFLAGS += -D_GNU_SOURCE
  
 +ALIGNS := 0x1000 0x200000 0x1000000
 +ALIGN_PIES        := $(patsubst %,load_address.%,$(ALIGNS))
 +ALIGN_STATIC_PIES := $(patsubst %,load_address.static.%,$(ALIGNS))
 +ALIGNMENT_TESTS   := $(ALIGN_PIES) $(ALIGN_STATIC_PIES)
 +
  TEST_PROGS := binfmt_script.py
 -TEST_GEN_PROGS := execveat load_address_4096 load_address_2097152 load_address_16777216 non-regular
 +TEST_GEN_PROGS := execveat non-regular $(ALIGNMENT_TESTS)
  TEST_GEN_FILES := execveat.symlink execveat.denatured script subdir
  # Makefile is a run-time dependency, since it's accessed by the execveat test
  TEST_FILES := Makefile

diff --cc tools/testing/selftests/kvm/Makefile
Simple merge

diff --cc tools/testing/selftests/lib.mk
Simple merge

diff --cc tools/testing/selftests/net/Makefile
Simple merge