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authorLinus Torvalds <torvalds@linux-foundation.org>2026-09-25 15:55:03 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-09-25 15:55:03 -0700
commit75467f60a3d14f08f86f2b353298d2826382ff23 (patch)
treeacd8a7d5b5a675042449386efa5b42ec44d8bf81 /Documentation/features/locking
downloadlinux-stable-75467f60a3d14f08f86f2b353298d2826382ff23.tar.gz
linux-stable-75467f60a3d14f08f86f2b353298d2826382ff23.zip
Merge tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipegrafted
Pull IPE fixes from Fan Wu: "Two fixes for use-after-free issues found by recent LLM-assisted code analysis. - move successful policy load auditing under the new policy directory's inode lock, preventing a concurrent policy deletion from freeing the policy while it is still being audited - protect the dm-verity root hash with RCU, preventing policy evaluation from racing with root hash replacement during preresume" * tag 'ipe-pr-20260925' of git://git.kernel.org/pub/scm/linux/kernel/git/wufan/ipe: ipe: protect the dm-verity root hash with RCU ipe: fix use-after-free when auditing a newly loaded policy
Diffstat (limited to 'Documentation/features/locking')
-rw-r--r--Documentation/features/locking/cmpxchg-local/arch-support.txt30
-rw-r--r--Documentation/features/locking/lockdep/arch-support.txt30
-rw-r--r--Documentation/features/locking/queued-rwlocks/arch-support.txt30
-rw-r--r--Documentation/features/locking/queued-spinlocks/arch-support.txt30
4 files changed, 120 insertions, 0 deletions
diff --git a/Documentation/features/locking/cmpxchg-local/arch-support.txt b/Documentation/features/locking/cmpxchg-local/arch-support.txt
new file mode 100644
index 000000000..2c3a4b91f
--- /dev/null
+++ b/Documentation/features/locking/cmpxchg-local/arch-support.txt
@@ -0,0 +1,30 @@
+#
+# Feature name: cmpxchg-local
+# Kconfig: HAVE_CMPXCHG_LOCAL
+# description: arch supports the this_cpu_cmpxchg() API
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | TODO |
+ | hexagon: | TODO |
+ | loongarch: | TODO |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | TODO |
+ | nios2: | TODO |
+ | openrisc: | TODO |
+ | parisc: | TODO |
+ | powerpc: | TODO |
+ | riscv: | TODO |
+ | s390: | ok |
+ | sh: | TODO |
+ | sparc: | TODO |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | TODO |
+ -----------------------
diff --git a/Documentation/features/locking/lockdep/arch-support.txt b/Documentation/features/locking/lockdep/arch-support.txt
new file mode 100644
index 000000000..87a534c89
--- /dev/null
+++ b/Documentation/features/locking/lockdep/arch-support.txt
@@ -0,0 +1,30 @@
+#
+# Feature name: lockdep
+# Kconfig: LOCKDEP_SUPPORT
+# description: arch supports the runtime locking correctness debug facility
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | ok |
+ | arc: | ok |
+ | arm: | ok |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | ok |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | ok |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | ok |
+ | parisc: | ok |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | ok |
+ | sh: | ok |
+ | sparc: | ok |
+ | um: | ok |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/locking/queued-rwlocks/arch-support.txt b/Documentation/features/locking/queued-rwlocks/arch-support.txt
new file mode 100644
index 000000000..b286a5fff
--- /dev/null
+++ b/Documentation/features/locking/queued-rwlocks/arch-support.txt
@@ -0,0 +1,30 @@
+#
+# Feature name: queued-rwlocks
+# Kconfig: ARCH_USE_QUEUED_RWLOCKS
+# description: arch supports queued rwlocks
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | ok |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------
diff --git a/Documentation/features/locking/queued-spinlocks/arch-support.txt b/Documentation/features/locking/queued-spinlocks/arch-support.txt
new file mode 100644
index 000000000..cf2604248
--- /dev/null
+++ b/Documentation/features/locking/queued-spinlocks/arch-support.txt
@@ -0,0 +1,30 @@
+#
+# Feature name: queued-spinlocks
+# Kconfig: ARCH_USE_QUEUED_SPINLOCKS
+# description: arch supports queued spinlocks
+#
+ -----------------------
+ | arch |status|
+ -----------------------
+ | alpha: | TODO |
+ | arc: | TODO |
+ | arm: | TODO |
+ | arm64: | ok |
+ | csky: | ok |
+ | hexagon: | TODO |
+ | loongarch: | ok |
+ | m68k: | TODO |
+ | microblaze: | TODO |
+ | mips: | ok |
+ | nios2: | TODO |
+ | openrisc: | ok |
+ | parisc: | TODO |
+ | powerpc: | ok |
+ | riscv: | ok |
+ | s390: | TODO |
+ | sh: | TODO |
+ | sparc: | ok |
+ | um: | TODO |
+ | x86: | ok |
+ | xtensa: | ok |
+ -----------------------