[GIT PULL] Locking changes for v6.5

From: Ingo Molnar
Date: Tue Jun 27 2023 - 06:55:54 EST

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Linus,

Please pull the latest locking tree from:

git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking-core-2023-06-27

# HEAD: b33eb50a92b0a298fa8a6ac350e741c3ec100f6d locking/atomic: scripts: fix ${atomic}_dec_if_positive() kerneldoc

Locking changes for v6.5:

- Introduce cmpxchg128() -- aka. the demise of cmpxchg_double().

The cmpxchg128() family of functions is basically & functionally
the same as cmpxchg_double(), but with a saner interface: instead
of a 6-parameter horror that forced u128 - u64/u64-halves layout
details on the interface and exposed users to complexity,
fragility & bugs, use a natural 3-parameter interface with u128 types.

- Restructure the generated atomic headers, and add
kerneldoc comments for all of the generic atomic{,64,_long}_t
operations. Generated definitions are much cleaner now,
and come with documentation.

- Implement lock_set_cmp_fn() on lockdep, for defining an ordering
when taking multiple locks of the same type. This gets rid of
one use of lockdep_set_novalidate_class() in the bcache code.

- Fix raw_cpu_generic_try_cmpxchg() bug due to an unintended
variable shadowing generating garbage code on Clang on certain
ARM builds.

Thanks,

Ingo

------------------>
Kent Overstreet (2):
lockdep: Add lock_set_cmp_fn() annotation
bcache: Convert to lock_cmp_fn

Mark Rutland (27):
locking/atomic: arm: fix sync ops
locking/atomic: remove fallback comments
locking/atomic: hexagon: remove redundant arch_atomic_cmpxchg
locking/atomic: make atomic*_{cmp,}xchg optional
locking/atomic: arc: add preprocessor symbols
locking/atomic: arm: add preprocessor symbols
locking/atomic: hexagon: add preprocessor symbols
locking/atomic: m68k: add preprocessor symbols
locking/atomic: parisc: add preprocessor symbols
locking/atomic: sh: add preprocessor symbols
locking/atomic: sparc: add preprocessor symbols
locking/atomic: x86: add preprocessor symbols
locking/atomic: xtensa: add preprocessor symbols
locking/atomic: scripts: remove bogus order parameter
locking/atomic: scripts: remove leftover "${mult}"
locking/atomic: scripts: factor out order template generation
locking/atomic: scripts: add trivial raw_atomic*_<op>()
locking/atomic: treewide: use raw_atomic*_<op>()
locking/atomic: scripts: build raw_atomic_long*() directly
locking/atomic: scripts: restructure fallback ifdeffery
locking/atomic: scripts: split pfx/name/sfx/order
locking/atomic: scripts: simplify raw_atomic_long*() definitions
locking/atomic: scripts: simplify raw_atomic*() definitions
docs: scripts: kernel-doc: accept bitwise negation like ~@var
locking/atomic: scripts: generate kerneldoc comments
locking/atomic: treewide: delete arch_atomic_*() kerneldoc
locking/atomic: scripts: fix ${atomic}_dec_if_positive() kerneldoc

Nathan Chancellor (1):
percpu: Fix self-assignment of __old in raw_cpu_generic_try_cmpxchg()

Paul E. McKenney (1):
locking/atomic: docs: Add atomic operations to the driver basic API documentation

Peter Zijlstra (12):
cyrpto/b128ops: Remove struct u128
types: Introduce [us]128
arch: Introduce arch_{,try_}_cmpxchg128{,_local}()
instrumentation: Wire up cmpxchg128()
percpu: Add {raw,this}_cpu_try_cmpxchg()
percpu: Wire up cmpxchg128
parisc: Raise minimal GCC version
x86,amd_iommu: Replace cmpxchg_double()
x86,intel_iommu: Replace cmpxchg_double()
slub: Replace cmpxchg_double()
arch: Remove cmpxchg_double
s390/cpum_sf: Convert to cmpxchg128()

Documentation/core-api/this_cpu_ops.rst | 2 -
Documentation/driver-api/basics.rst | 8 +-
arch/alpha/include/asm/atomic.h | 35 -
arch/arc/include/asm/atomic-spinlock.h | 9 +
arch/arc/include/asm/atomic.h | 24 -
arch/arc/include/asm/atomic64-arcv2.h | 19 +-
arch/arm/include/asm/assembler.h | 17 +
arch/arm/include/asm/atomic.h | 15 +-
arch/arm/include/asm/sync_bitops.h | 29 +-
arch/arm/lib/bitops.h | 14 +-
arch/arm/lib/testchangebit.S | 4 +
arch/arm/lib/testclearbit.S | 4 +
arch/arm/lib/testsetbit.S | 4 +
arch/arm64/include/asm/atomic.h | 28 -
arch/arm64/include/asm/atomic_ll_sc.h | 56 +-
arch/arm64/include/asm/atomic_lse.h | 39 +-
arch/arm64/include/asm/cmpxchg.h | 48 +-
arch/arm64/include/asm/percpu.h | 30 +-
arch/csky/include/asm/atomic.h | 35 -
arch/hexagon/include/asm/atomic.h | 69 +-
arch/ia64/include/asm/atomic.h | 7 -
arch/loongarch/include/asm/atomic.h | 56 -
arch/m68k/include/asm/atomic.h | 18 +-
arch/mips/include/asm/atomic.h | 11 -
arch/openrisc/include/asm/atomic.h | 3 -
arch/parisc/include/asm/atomic.h | 27 +-
arch/powerpc/include/asm/atomic.h | 24 -
arch/powerpc/kernel/smp.c | 12 +-
arch/riscv/include/asm/atomic.h | 72 -
arch/s390/include/asm/cmpxchg.h | 32 +-
arch/s390/include/asm/cpu_mf.h | 2 +-
arch/s390/include/asm/percpu.h | 34 +-
arch/s390/kernel/perf_cpum_sf.c | 16 +-
arch/sh/include/asm/atomic-grb.h | 9 +
arch/sh/include/asm/atomic-irq.h | 9 +
arch/sh/include/asm/atomic-llsc.h | 9 +
arch/sh/include/asm/atomic.h | 3 -
arch/sparc/include/asm/atomic_32.h | 30 +-
arch/sparc/include/asm/atomic_64.h | 29 +-
arch/x86/include/asm/atomic.h | 87 -
arch/x86/include/asm/atomic64_32.h | 76 -
arch/x86/include/asm/atomic64_64.h | 81 -
arch/x86/include/asm/cmpxchg.h | 25 -
arch/x86/include/asm/cmpxchg_32.h | 2 +-
arch/x86/include/asm/cmpxchg_64.h | 67 +-
arch/x86/include/asm/percpu.h | 102 +-
arch/x86/kernel/alternative.c | 4 +-
arch/x86/kernel/cpu/mce/core.c | 16 +-
arch/x86/kernel/nmi.c | 2 +-
arch/x86/kernel/pvclock.c | 4 +-
arch/x86/kvm/x86.c | 2 +-
arch/x86/lib/Makefile | 3 +-
arch/x86/lib/cmpxchg16b_emu.S | 43 +-
arch/x86/lib/cmpxchg8b_emu.S | 67 +-
arch/xtensa/include/asm/atomic.h | 12 +-
drivers/iommu/amd/amd_iommu_types.h | 9 +-
drivers/iommu/amd/iommu.c | 10 +-
drivers/iommu/intel/irq_remapping.c | 8 +-
drivers/md/bcache/btree.c | 23 +-
drivers/md/bcache/btree.h | 4 +-
include/asm-generic/atomic.h | 3 -
include/asm-generic/bitops/atomic.h | 12 +-
include/asm-generic/bitops/lock.h | 8 +-
include/asm-generic/percpu.h | 209 +-
include/crypto/b128ops.h | 14 +-
include/linux/atomic/atomic-arch-fallback.h | 5607 +++++++++++++++++---------
include/linux/atomic/atomic-instrumented.h | 3459 ++++++++++++++--
include/linux/atomic/atomic-long.h | 2122 ++++++----
include/linux/context_tracking.h | 4 +-
include/linux/context_tracking_state.h | 2 +-
include/linux/cpumask.h | 2 +-
include/linux/dmar.h | 117 +-
include/linux/jump_label.h | 2 +-
include/linux/lockdep.h | 8 +
include/linux/lockdep_types.h | 8 +
include/linux/percpu-defs.h | 45 +-
include/linux/slub_def.h | 12 +-
include/linux/types.h | 5 +
include/uapi/linux/types.h | 4 +
kernel/context_tracking.c | 12 +-
kernel/locking/lockdep.c | 118 +-
kernel/sched/clock.c | 2 +-
lib/crypto/curve25519-hacl64.c | 2 -
lib/crypto/poly1305-donna64.c | 2 -
mm/slab.h | 53 +-
mm/slub.c | 139 +-
scripts/atomic/atomic-tbl.sh | 112 +-
scripts/atomic/atomics.tbl | 2 +-
scripts/atomic/fallbacks/acquire | 4 -
scripts/atomic/fallbacks/add_negative | 14 +-
scripts/atomic/fallbacks/add_unless | 15 +-
scripts/atomic/fallbacks/andnot | 6 +-
scripts/atomic/fallbacks/cmpxchg | 3 +
scripts/atomic/fallbacks/dec | 6 +-
scripts/atomic/fallbacks/dec_and_test | 14 +-
scripts/atomic/fallbacks/dec_if_positive | 8 +-
scripts/atomic/fallbacks/dec_unless_positive | 8 +-
scripts/atomic/fallbacks/fence | 4 -
scripts/atomic/fallbacks/fetch_add_unless | 17 +-
scripts/atomic/fallbacks/inc | 6 +-
scripts/atomic/fallbacks/inc_and_test | 14 +-
scripts/atomic/fallbacks/inc_not_zero | 13 +-
scripts/atomic/fallbacks/inc_unless_negative | 8 +-
scripts/atomic/fallbacks/read_acquire | 6 +-
scripts/atomic/fallbacks/release | 4 -
scripts/atomic/fallbacks/set_release | 6 +-
scripts/atomic/fallbacks/sub_and_test | 15 +-
scripts/atomic/fallbacks/try_cmpxchg | 6 +-
scripts/atomic/fallbacks/xchg | 3 +
scripts/atomic/gen-atomic-fallback.sh | 276 +-
scripts/atomic/gen-atomic-instrumented.sh | 42 +-
scripts/atomic/gen-atomic-long.sh | 38 +-
scripts/atomic/kerneldoc/add | 13 +
scripts/atomic/kerneldoc/add_negative | 13 +
scripts/atomic/kerneldoc/add_unless | 18 +
scripts/atomic/kerneldoc/and | 13 +
scripts/atomic/kerneldoc/andnot | 13 +
scripts/atomic/kerneldoc/cmpxchg | 14 +
scripts/atomic/kerneldoc/dec | 12 +
scripts/atomic/kerneldoc/dec_and_test | 12 +
scripts/atomic/kerneldoc/dec_if_positive | 12 +
scripts/atomic/kerneldoc/dec_unless_positive | 12 +
scripts/atomic/kerneldoc/inc | 12 +
scripts/atomic/kerneldoc/inc_and_test | 12 +
scripts/atomic/kerneldoc/inc_not_zero | 12 +
scripts/atomic/kerneldoc/inc_unless_negative | 12 +
scripts/atomic/kerneldoc/or | 13 +
scripts/atomic/kerneldoc/read | 12 +
scripts/atomic/kerneldoc/set | 13 +
scripts/atomic/kerneldoc/sub | 13 +
scripts/atomic/kerneldoc/sub_and_test | 13 +
scripts/atomic/kerneldoc/try_cmpxchg | 15 +
scripts/atomic/kerneldoc/xchg | 13 +
scripts/atomic/kerneldoc/xor | 13 +
scripts/kernel-doc | 2 +-
scripts/min-tool-version.sh | 6 +-
136 files changed, 10107 insertions(+), 4346 deletions(-)
create mode 100644 scripts/atomic/fallbacks/cmpxchg
create mode 100644 scripts/atomic/fallbacks/xchg
create mode 100644 scripts/atomic/kerneldoc/add
create mode 100644 scripts/atomic/kerneldoc/add_negative
create mode 100644 scripts/atomic/kerneldoc/add_unless
create mode 100644 scripts/atomic/kerneldoc/and
create mode 100644 scripts/atomic/kerneldoc/andnot
create mode 100644 scripts/atomic/kerneldoc/cmpxchg
create mode 100644 scripts/atomic/kerneldoc/dec
create mode 100644 scripts/atomic/kerneldoc/dec_and_test
create mode 100644 scripts/atomic/kerneldoc/dec_if_positive
create mode 100644 scripts/atomic/kerneldoc/dec_unless_positive
create mode 100644 scripts/atomic/kerneldoc/inc
create mode 100644 scripts/atomic/kerneldoc/inc_and_test
create mode 100644 scripts/atomic/kerneldoc/inc_not_zero
create mode 100644 scripts/atomic/kerneldoc/inc_unless_negative
create mode 100644 scripts/atomic/kerneldoc/or
create mode 100644 scripts/atomic/kerneldoc/read
create mode 100644 scripts/atomic/kerneldoc/set
create mode 100644 scripts/atomic/kerneldoc/sub
create mode 100644 scripts/atomic/kerneldoc/sub_and_test
create mode 100644 scripts/atomic/kerneldoc/try_cmpxchg
create mode 100644 scripts/atomic/kerneldoc/xchg
create mode 100644 scripts/atomic/kerneldoc/xor

Next message: Tianyu Lan: "Re: [EXTERNAL] Re: [PATCH 5/9] x86/hyperv: Use vmmcall to implement Hyper-V hypercall in sev-snp enlightened guest"
Previous message: 叶澄锋: "Re: [PATCH] ALSA: sb: fix potential deadlock on &chip->mixer_lock"
Next in thread: pr-tracker-bot: "Re: [GIT PULL] Locking changes for v6.5"
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