Commit 136114e0abf0 for kernel
commit 136114e0abf03005e182d75761ab694648e6d388
Merge: 4cff5c05e076 0dddf20b4fd4
Author: Linus Torvalds <torvalds@linux-foundation.org>
Date: Thu Feb 12 12:13:01 2026 -0800
Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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 fs/fat/dir.c
index 07d95f1442c8,af7dedf8adcb..4b8b25f688e4
--- a/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 ba0152ed0810,262ec1b790b5..048c103b506a
--- a/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 e46f34cade1a,8bf5f7a9fd23..2acfe3123a72
--- a/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 lib/Kconfig.debug
index 64ef7e62eb8a,ef201f1cc498..4e2dfbbd3d78
--- a/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 security/keys/trusted-keys/trusted_core.c
index 2d328de170e8,16168ba5c83e..9046123d94de
--- a/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>