Linus, please merge another batch of hotfixes, thanks. The following changes since commit 197b6b60ae7bc51dd0814953c562833143b292aa: Linux 6.3-rc4 (2023-03-26 14:40:20 -0700) are available in the Git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm tags/mm-hotfixes-stable-2023-04-07-16-23 for you to fetch changes up to c45ea315a602d45569b08b93e9ab30f6a63a38aa: maple_tree: fix a potential concurrency bug in RCU mode (2023-04-05 18:06:25 -0700) ---------------------------------------------------------------- 28 hotfixes. 23 are cc:stable and the other 5 address issues which were introduced during this merge cycle. 20 are for MM and the remainder are for other subsystems. ---------------------------------------------------------------- Alistair Popple (1): mm: take a page reference when removing device exclusive entries Florian Fainelli (1): mailmap: add an entry for Leonard Crestez Leonard Göhrs (1): .mailmap: add entry for Leonard Göhrs Liam Howlett (4): maple_tree: be more cautious about dead nodes maple_tree: detect dead nodes in mas_start() maple_tree: fix freeing of nodes in rcu mode maple_tree: remove extra smp_wmb() from mas_dead_leaves() Liam R. Howlett (4): maple_tree: fix write memory barrier of nodes once dead for RCU mode maple_tree: add smp_rmb() to dead node detection maple_tree: add RCU lock checking to rcu callback functions mm: enable maple tree RCU mode by default Muchun Song (2): mm: kfence: fix PG_slab and memcg_data clearing mm: kfence: fix handling discontiguous page Peng Zhang (2): maple_tree: fix get wrong data_end in mtree_lookup_walk() maple_tree: fix a potential concurrency bug in RCU mode Peter Xu (1): mm/hugetlb: fix uffd wr-protection for CoW optimization path Rongwei Wang (1): mm/swap: fix swap_info_struct race between swapoff and get_swap_pages() Ryusuke Konishi (2): nilfs2: fix potential UAF of struct nilfs_sc_info in nilfs_segctor_thread() nilfs2: fix sysfs interface lifetime Sergey Senozhatsky (2): zsmalloc: document new fullness grouping zsmalloc: document freeable stats Shiyang Ruan (3): fsdax: unshare: zero destination if srcmap is HOLE or UNWRITTEN fsdax: dedupe should compare the min of two iters' length fsdax: force clear dirty mark if CoW Tetsuo Handa (1): nilfs2: initialize "struct nilfs_binfo_dat"->bi_pad field Tiezhu Yang (1): lib/Kconfig.debug: correct help info of LOCKDEP_STACK_TRACE_HASH_BITS Yafang Shao (1): mm: vmalloc: avoid warn_alloc noise caused by fatal signal ye xingchen (1): Kconfig.debug: fix SCHED_DEBUG dependency .mailmap | 2 + Documentation/mm/zsmalloc.rst | 135 ++++++++++-------- fs/dax.c | 52 ++++++- fs/nilfs2/btree.c | 1 + fs/nilfs2/direct.c | 1 + fs/nilfs2/segment.c | 3 +- fs/nilfs2/super.c | 2 + fs/nilfs2/the_nilfs.c | 12 +- include/linux/mm_types.h | 3 +- kernel/fork.c | 3 + lib/Kconfig.debug | 4 +- lib/maple_tree.c | 287 ++++++++++++++++++++++++++------------- mm/hugetlb.c | 14 +- mm/kfence/core.c | 32 ++--- mm/memory.c | 16 ++- mm/mmap.c | 3 +- mm/swapfile.c | 3 +- mm/vmalloc.c | 8 +- tools/testing/radix-tree/maple.c | 16 +++ 19 files changed, 402 insertions(+), 195 deletions(-)