Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux...

Pull non-MM updates from Andrew Morton:

 - "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves
   disk space by teaching ocfs2 to reclaim suballocator block group
   space (Heming Zhao)

 - "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the
   ARRAY_END() macro and uses it in various places (Alejandro Colomar)

 - "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes
   the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the
   page size (Pnina Feder)

 - "kallsyms: Prevent invalid access when showing module buildid" cleans
   up kallsyms code related to module buildid and fixes an invalid
   access crash when printing backtraces (Petr Mladek)

 - "Address page fault in ima_restore_measurement_list()" fixes a
   kexec-related crash that can occur when booting the second-stage
   kernel on x86 (Harshit Mogalapalli)

 - "kho: ABI headers and Documentation updates" updates the kexec
   handover ABI documentation (Mike Rapoport)

 - "Align atomic storage" adds the __aligned attribute to atomic_t and
   atomic64_t definitions to get natural alignment of both types on
   csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain)

 - "kho: clean up page initialization logic" simplifies the page
   initialization logic in kho_restore_page() (Pratyush Yadav)

 - "Unload linux/kernel.h" moves several things out of kernel.h and into
   more appropriate places (Yury Norov)

 - "don't abuse task_struct.group_leader" removes the usage of
   ->group_leader when it is "obviously unnecessary" (Oleg Nesterov)

 - "list private v2 & luo flb" adds some infrastructure improvements to
   the live update orchestrator (Pasha Tatashin)

* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits)
  watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency
  procfs: fix missing RCU protection when reading real_parent in do_task_stat()
  watchdog/softlockup: fix sample ring index wrap in need_counting_irqs()
  kcsan, compiler_types: avoid duplicate type issues in BPF Type Format
  kho: fix doc for kho_restore_pages()
  tests/liveupdate: add in-kernel liveupdate test
  liveupdate: luo_flb: introduce File-Lifecycle-Bound global state
  liveupdate: luo_file: Use private list
  list: add kunit test for private list primitives
  list: add primitives for private list manipulations
  delayacct: fix uapi timespec64 definition
  panic: add panic_force_cpu= parameter to redirect panic to a specific CPU
  netclassid: use thread_group_leader(p) in update_classid_task()
  RDMA/umem: don't abuse current->group_leader
  drm/pan*: don't abuse current->group_leader
  drm/amd: kill the outdated "Only the pthreads threading model is supported" checks
  drm/amdgpu: don't abuse current->group_leader
  android/binder: use same_thread_group(proc->tsk, current) in binder_mmap()
  android/binder: don't abuse current->group_leader
  kho: skip memoryless NUMA nodes when reserving scratch areas
  ...

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

diff --cc Documentation/dev-tools/checkpatch.rst
Simple merge

diff --cc MAINTAINERS
Simple merge

diff --cc arch/arm64/net/bpf_jit_comp.c
Simple merge

diff --cc arch/m68k/configs/amiga_defconfig
Simple merge

diff --cc arch/m68k/configs/apollo_defconfig
Simple merge

diff --cc arch/m68k/configs/atari_defconfig
Simple merge

diff --cc arch/m68k/configs/bvme6000_defconfig
Simple merge

diff --cc arch/m68k/configs/hp300_defconfig
Simple merge

diff --cc arch/m68k/configs/mac_defconfig
Simple merge

diff --cc arch/m68k/configs/multi_defconfig
Simple merge

diff --cc arch/m68k/configs/mvme147_defconfig
Simple merge

diff --cc arch/m68k/configs/mvme16x_defconfig
Simple merge

diff --cc arch/m68k/configs/q40_defconfig
Simple merge

diff --cc arch/m68k/configs/sun3_defconfig
Simple merge

diff --cc arch/m68k/configs/sun3x_defconfig
Simple merge

diff --cc arch/mips/kernel/setup.c
Simple merge

diff --cc arch/powerpc/configs/ppc64_defconfig
Simple merge

diff --cc arch/powerpc/configs/skiroot_defconfig
Simple merge

diff --cc arch/powerpc/net/bpf_jit_comp.c
Simple merge

diff --cc arch/s390/configs/debug_defconfig
Simple merge

diff --cc arch/x86/kernel/setup.c
Simple merge

diff --cc crypto/asymmetric_keys/asymmetric_type.c
Simple merge

diff --cc crypto/asymmetric_keys/x509_public_key.c
Simple merge

diff --cc drivers/android/binder.c
Simple merge

diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c
Simple merge

diff --cc drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
Simple merge

diff --cc drivers/gpu/drm/amd/amdkfd/kfd_process.c
Simple merge

diff --cc drivers/gpu/drm/panfrost/panfrost_gem.c
Simple merge

diff --cc drivers/gpu/drm/panthor/panthor_gem.c
Simple merge

diff --cc drivers/md/dm-crypt.c
Simple merge

diff --cc drivers/md/dm-integrity.c
Simple merge

diff --cc drivers/md/dm-verity-target.c
Simple merge

diff --cc drivers/net/bonding/bond_options.c
Simple merge

diff --cc drivers/net/ethernet/micrel/ksz884x.c
Simple merge

diff --cc drivers/net/netconsole.c
Simple merge

diff --cc drivers/net/netdevsim/dev.c
Simple merge

diff --cc drivers/net/usb/r8152.c
Simple merge

diff --cc drivers/net/usb/usbnet.c
Simple merge

diff --cc drivers/net/wireless/intel/iwlwifi/mld/debugfs.c
Simple merge

diff --cc drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
Simple merge

diff --cc drivers/net/wireless/realtek/rtw89/debug.c
Simple merge

diff --cc drivers/s390/crypto/ap_bus.c
Simple merge

diff --cc drivers/tty/vt/vt.c
Simple merge

diff --cc fs/ecryptfs/ecryptfs_kernel.h
Simple merge

diff --cc fs/efivarfs/vars.c
Simple merge

diff --cc fs/fat/dir.c
index 07d95f1442c8490cdc88c67dff8141c188613b3d,af7dedf8adcbbf34a2a4b948051193eff5e3fe31..4b8b25f688e4f0c4e5b54bc6dd245076729c1756
--- 1/fs/fat/dir.c
--- 2/fs/fat/dir.c
+++ b/fs/fat/dir.c
@@@ -16,7 -16,7 +16,8 @@@
  
  #include <linux/slab.h>
  #include <linux/compat.h>
 +#include <linux/filelock.h>
+ #include <linux/hex.h>
  #include <linux/uaccess.h>
  #include <linux/iversion.h>
  #include "fat.h"

diff --cc fs/fat/namei_msdos.c
index ba0152ed0810ecd39afbc22d29204a7105a96c87,262ec1b790b560fae7aadeeb6a5aaca136625a01..048c103b506a89de6ac58d6cc34513be592736c0
--- 1/fs/fat/namei_msdos.c
--- 2/fs/fat/namei_msdos.c
+++ b/fs/fat/namei_msdos.c
@@@ -325,9 -325,15 +325,14 @@@ static int msdos_rmdir(struct inode *di
        err = fat_remove_entries(dir, &sinfo);  /* and releases bh */
        if (err)
                goto out;
-       drop_nlink(dir);
+       if (dir->i_nlink >= 3)
+               drop_nlink(dir);
+       else {
+               fat_fs_error(sb, "parent dir link count too low (%u)",
+                       dir->i_nlink);
+       }
  
        clear_nlink(inode);
 -      fat_truncate_time(inode, NULL, S_CTIME);
        fat_detach(inode);
  out:
        mutex_unlock(&MSDOS_SB(sb)->s_lock);

diff --cc fs/fat/namei_vfat.c
index e46f34cade1a254ac77b6e15b5262df2982bf432,8bf5f7a9fd2382c7381eb8e77804a087c4993d50..2acfe3123a7293ae37471b460321fac93c85702b
--- 1/fs/fat/namei_vfat.c
--- 2/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@@ -803,10 -804,15 +804,15 @@@ static int vfat_rmdir(struct inode *dir
        err = fat_remove_entries(dir, &sinfo);  /* and releases bh */
        if (err)
                goto out;
-       drop_nlink(dir);
+       if (dir->i_nlink >= 3)
+               drop_nlink(dir);
+       else {
+               fat_fs_error(sb, "parent dir link count too low (%u)",
+                       dir->i_nlink);
+       }
  
        clear_nlink(inode);
 -      fat_truncate_time(inode, NULL, S_ATIME|S_MTIME);
 +      fat_truncate_time(inode, NULL, FAT_UPDATE_ATIME | FAT_UPDATE_CMTIME);
        fat_detach(inode);
        vfat_d_version_set(dentry, inode_query_iversion(dir));
  out:

diff --cc fs/gfs2/lock_dlm.c
Simple merge

diff --cc include/asm-generic/rqspinlock.h
Simple merge

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

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

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

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

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

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

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

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

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

diff --cc init/main.c
Simple merge

diff --cc kernel/audit.c
Simple merge

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

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

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

diff --cc kernel/fork.c
Simple merge

diff --cc kernel/kallsyms.c
Simple merge

diff --cc kernel/liveupdate/luo_file.c
Simple merge

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

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

diff --cc kernel/trace/trace.h
Simple merge

diff --cc kernel/vmcore_info.c
Simple merge

diff --cc lib/Kconfig.debug
index 64ef7e62eb8a363f8856e90e1f84761d69a8fdad,ef201f1cc4980fa1fc8af249f09d8378493ea749..4e2dfbbd3d7863029fb38810031a786aa5d6b6d9
--- 1/lib/Kconfig.debug
--- 2/lib/Kconfig.debug
+++ b/lib/Kconfig.debug
@@@ -2870,20 -2825,29 +2890,43 @@@ config LINEAR_RANGES_TES
  
          If unsure, say N.
  
 +config CONTEXT_ANALYSIS_TEST
 +      bool "Compiler context-analysis warnings test"
 +      depends on EXPERT
 +      help
 +        This builds the test for compiler-based context analysis. The test
 +        does not add executable code to the kernel, but is meant to test that
 +        common patterns supported by the analysis do not result in false
 +        positive warnings.
 +
 +        When adding support for new context locks, it is strongly recommended
 +        to add supported patterns to this test.
 +
 +        If unsure, say N.
 +
+ config LIVEUPDATE_TEST
+       bool "Live Update Kernel Test"
+       default n
+       depends on LIVEUPDATE
+       help
+         Enable a built-in kernel test module for the Live Update
+         Orchestrator.
+ 
+         This module validates the File-Lifecycle-Bound subsystem by
+         registering a set of mock FLB objects with any real file handlers
+         that support live update (such as the memfd handler).
+ 
+         When live update operations are performed, this test module will
+         output messages to the kernel log (dmesg), confirming that its
+         registration and various callback functions (preserve, retrieve,
+         finish, etc.) are being invoked correctly.
+ 
+         This is a debugging and regression testing tool for developers
+         working on the Live Update subsystem. It should not be enabled in
+         production kernels.
+ 
+         If unsure, say N
+ 
  config CMDLINE_KUNIT_TEST
        tristate "KUnit test for cmdline API" if !KUNIT_ALL_TESTS
        depends on KUNIT

diff --cc lib/Makefile
Simple merge

diff --cc lib/tests/Makefile
Simple merge

diff --cc mm/Makefile
Simple merge

diff --cc mm/kmsan/kmsan_test.c
Simple merge

diff --cc mm/memblock.c
Simple merge

diff --cc mm/memcontrol-v1.c
Simple merge

diff --cc net/bridge/br_sysfs_br.c
Simple merge

diff --cc scripts/checkpatch.pl
Simple merge

diff --cc security/integrity/evm/evm_crypto.c
Simple merge

diff --cc security/keys/trusted-keys/trusted_core.c
index 2d328de170e8c3a9403312ab590a70c32484de76,16168ba5c83e29047dfe2588016189276199ec4a..9046123d94de728bd090a3354f8d3e3688979679
--- 1/security/keys/trusted-keys/trusted_core.c
--- 2/security/keys/trusted-keys/trusted_core.c
+++ b/security/keys/trusted-keys/trusted_core.c
@@@ -12,9 -12,9 +12,10 @@@
  #include <keys/trusted_caam.h>
  #include <keys/trusted_dcp.h>
  #include <keys/trusted_tpm.h>
 +#include <keys/trusted_pkwm.h>
  #include <linux/capability.h>
  #include <linux/err.h>
+ #include <linux/hex.h>
  #include <linux/init.h>
  #include <linux/key-type.h>
  #include <linux/module.h>