* [GIT PULL] locking and misc x86 updates for v4.20
@ 2018-10-23 10:26 Ingo Molnar
0 siblings, 0 replies; only message in thread
From: Ingo Molnar @ 2018-10-23 10:26 UTC (permalink / raw)
To: Linus Torvalds
Cc: linux-kernel, Greg Kroah-Hartman, Peter Zijlstra, Thomas Gleixner,
Paul E. McKenney, Andrew Morton, Borislav Petkov
Linus,
Please pull the latest locking-core-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git locking-core-for-linus
# HEAD: 01a14bda11add9dcd4a59200f13834d634559935 locking/lockdep: Make global debug_locks* variables read-mostly
Lots of changes in this cycle - in part because locking/core attracted a
number of related x86 low level work which was easier to handle in a
single tree:
- Linux Kernel Memory Consistency Model updates
(Alan Stern, Paul E. McKenney, Andrea Parri)
- lockdep scalability improvements and micro-optimizations (Waiman Long)
- rwsem improvements (Waiman Long)
- spinlock micro-optimization (Matthew Wilcox)
- qspinlocks: Provide a liveness guarantee (more fairness) on x86.
(Peter Zijlstra)
- Add support for relative references in jump tables on arm64, x86 and
s390 to optimize jump labels (Ard Biesheuvel, Heiko Carstens)
- Be a lot less permissive on weird (kernel address) uaccess faults on
x86: BUG() when uaccess helpers fault on kernel addresses (Jann Horn)
- macrofy x86 asm statements to un-confuse the GCC inliner. (Nadav Amit)
- ... and a handful of other smaller changes as well.
Thanks,
Ingo
------------------>
Adam Borowski (1):
x86/defconfig: Enable CONFIG_USB_XHCI_HCD=y
Alan Stern (1):
tools/memory-model: Add extra ordering for locks and remove it for ordinary release/acquire
Andrea Parri (1):
locking/memory-barriers: Replace smp_cond_acquire() with smp_cond_load_acquire()
Andrew Murray (1):
Documentation/lockstat: Fix trivial typo
Ard Biesheuvel (10):
jump_label: Abstract jump_entry member accessors
jump_label: Implement generic support for relative references
arm64/kernel: jump_label: Switch to relative references
x86: Add support for 64-bit place relative relocations
x86/jump_label: Switch to jump_entry accessors
x86/jump_table: Use relative references
jump_label: Annotate entries that operate on __init code earlier
jump_table: Move entries into ro_after_init region
s390/vmlinux.lds: Move JUMP_TABLE_DATA into output section
jump_label: Fix NULL dereference bug in __jump_label_mod_update()
Borislav Petkov (1):
jump_label: Use static_key_linked() accessor
Heiko Carstens (1):
s390/jump_label: Switch to relative references
Jann Horn (7):
x86/kprobes: Refactor kprobes_fault() like kprobe_exceptions_notify()
x86/kprobes: Inline kprobe_exceptions_notify() into do_general_protection()
x86/kprobes: Stop calling fixup_exception() from kprobe_fault_handler()
x86/extable: Introduce _ASM_EXTABLE_UA for uaccess fixups
x86/fault: Plumb error code and fault address through to fault handlers
x86/fault: BUG() when uaccess helpers fault on kernel addresses
lkdtm: Test copy_to_user() on bad kernel pointer under KERNEL_DS
Lance Roy (1):
futex: Replace spin_is_locked() with lockdep
Masahiro Yamada (1):
x86/build: Remove unused CONFIG_AS_CRC32
Matthew Wilcox (1):
locking/spinlocks: Remove an instruction from spin and write locks
Nadav Amit (10):
kbuild/arch/xtensa: Define LINKER_SCRIPT for the linker script
kbuild/Makefile: Prepare for using macros in inline assembly code to work around asm() related GCC inlining bugs
x86/objtool: Use asm macros to work around GCC inlining bugs
x86/refcount: Work around GCC inlining bug
x86/alternatives: Macrofy lock prefixes to work around GCC inlining bugs
x86/bug: Macrofy the BUG table section handling, to work around GCC inlining bugs
x86/paravirt: Work around GCC inlining bugs when compiling paravirt ops
x86/extable: Macrofy inline assembly code to work around GCC inlining bugs
x86/cpufeature: Macrofy inline assembly code to work around GCC inlining bugs
x86/jump-labels: Macrofy inline assembly code to work around GCC inlining bugs
Paul E. McKenney (2):
tools/memory-model: Add litmus-test naming scheme
tools/memory-model: Add more LKMM limitations
Peter Zijlstra (6):
jump_label/lockdep: Assert we hold the hotplug lock for _cpuslocked() operations
locking/lockdep, cpu/hotplug: Annotate AP thread
locking/qspinlock: Re-order code
locking/qspinlock: Rework some comments
x86/asm: 'Simplify' GEN_*_RMWcc() macros
locking/qspinlock, x86: Provide liveness guarantee
SeongJae Park (1):
tools/memory-model: Fix a README typo
Steven Rostedt (VMware) (1):
locking/rtmutex: Fix the preprocessor logic with normal #ifdef #else #endif
Waiman Long (11):
locking/rwsem: Exit read lock slowpath if queue empty & no writer
locking/rwsem: Make owner store task pointer of last owning reader
locking/lockdep: Remove add_chain_cache_classes()
locking/lockdep: Eliminate redundant IRQs check in __lock_acquire()
locking/lockdep: Add a faster path in __lock_release()
locking/lockdep: Make class->ops a percpu counter and move it under CONFIG_DEBUG_LOCKDEP=y
locking/lockdep: Remove duplicated 'lock_class_ops' percpu array
locking/qspinlock_stat: Count instances of nested lock slowpaths
locking/pvqspinlock: Extend node size when pvqspinlock is configured
locking/lockdep: Fix debug_locks off performance problem
locking/lockdep: Make global debug_locks* variables read-mostly
Documentation/locking/lockstat.txt | 2 +-
Documentation/memory-barriers.txt | 3 +-
Makefile | 9 +-
arch/Kconfig | 3 +
arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/jump_label.h | 38 ++---
arch/arm64/kernel/jump_label.c | 6 +-
arch/s390/Kconfig | 1 +
arch/s390/include/asm/jump_label.h | 40 ++---
arch/s390/kernel/jump_label.c | 11 +-
arch/s390/kernel/vmlinux.lds.S | 1 +
arch/x86/Kconfig | 1 +
arch/x86/Makefile | 8 +-
arch/x86/configs/i386_defconfig | 1 +
arch/x86/configs/x86_64_defconfig | 1 +
arch/x86/entry/calling.h | 2 +-
arch/x86/include/asm/alternative-asm.h | 20 ++-
arch/x86/include/asm/alternative.h | 11 +-
arch/x86/include/asm/asm.h | 57 +++----
arch/x86/include/asm/atomic.h | 8 +-
arch/x86/include/asm/atomic64_64.h | 8 +-
arch/x86/include/asm/bitops.h | 9 +-
arch/x86/include/asm/bug.h | 98 ++++++-----
arch/x86/include/asm/cpufeature.h | 82 +++++----
arch/x86/include/asm/elf.h | 3 +-
arch/x86/include/asm/extable.h | 3 +-
arch/x86/include/asm/fpu/internal.h | 2 +-
arch/x86/include/asm/futex.h | 6 +-
arch/x86/include/asm/jump_label.h | 80 ++-------
arch/x86/include/asm/local.h | 8 +-
arch/x86/include/asm/paravirt_types.h | 56 +++----
arch/x86/include/asm/preempt.h | 2 +-
arch/x86/include/asm/ptrace.h | 2 +
arch/x86/include/asm/qspinlock.h | 15 ++
arch/x86/include/asm/refcount.h | 79 +++++----
arch/x86/include/asm/rmwcc.h | 69 ++++----
arch/x86/include/asm/uaccess.h | 22 +--
arch/x86/kernel/cpu/mcheck/mce.c | 2 +-
arch/x86/kernel/jump_label.c | 62 +++----
arch/x86/kernel/kprobes/core.c | 38 -----
arch/x86/kernel/macros.S | 16 ++
arch/x86/kernel/module.c | 6 +
arch/x86/kernel/traps.c | 16 +-
arch/x86/lib/checksum_32.S | 4 +-
arch/x86/lib/copy_user_64.S | 90 +++++-----
arch/x86/lib/csum-copy_64.S | 8 +-
arch/x86/lib/getuser.S | 12 +-
arch/x86/lib/putuser.S | 10 +-
arch/x86/lib/usercopy_32.c | 126 +++++++-------
arch/x86/lib/usercopy_64.c | 4 +-
arch/x86/mm/extable.c | 114 +++++++++++--
arch/x86/mm/fault.c | 26 +--
arch/x86/tools/relocs.c | 10 ++
arch/x86/um/asm/elf.h | 3 +-
arch/xtensa/kernel/Makefile | 4 +-
drivers/misc/lkdtm/core.c | 1 +
drivers/misc/lkdtm/lkdtm.h | 1 +
drivers/misc/lkdtm/usercopy.c | 13 ++
fs/namespace.c | 2 +
include/asm-generic/bug.h | 8 +-
include/asm-generic/qrwlock.h | 7 +-
include/asm-generic/qspinlock.h | 16 +-
include/asm-generic/vmlinux.lds.h | 11 +-
include/linux/compiler.h | 56 +++++--
include/linux/debug_locks.h | 4 +-
include/linux/jump_label.h | 65 ++++++-
include/linux/lockdep.h | 7 +-
include/linux/rwsem.h | 4 +-
include/linux/sched.h | 6 +
init/main.c | 1 -
kernel/cpu.c | 28 ++++
kernel/futex.c | 4 +-
kernel/jump_label.c | 107 ++++++------
kernel/locking/lockdep.c | 116 ++++---------
kernel/locking/lockdep_internals.h | 27 +++
kernel/locking/lockdep_proc.c | 2 +-
kernel/locking/qspinlock.c | 143 +++++++++++-----
kernel/locking/qspinlock_paravirt.h | 4 +-
kernel/locking/qspinlock_stat.h | 6 +
kernel/locking/rtmutex.c | 4 +-
kernel/locking/rwsem-xadd.c | 15 +-
kernel/locking/rwsem.c | 7 +-
kernel/locking/rwsem.h | 95 ++++++++---
kernel/module.c | 9 +
lib/debug_locks.c | 6 +-
mm/maccess.c | 6 +
scripts/Kbuild.include | 4 +-
scripts/mod/Makefile | 2 +
tools/memory-model/Documentation/explanation.txt | 186 ++++++++++++++++-----
tools/memory-model/Documentation/recipes.txt | 2 +-
tools/memory-model/README | 39 +++++
tools/memory-model/linux-kernel.cat | 8 +-
.../ISA2+pooncelock+pooncelock+pombonce.litmus | 7 +-
tools/memory-model/litmus-tests/README | 104 +++++++++++-
tools/objtool/special.c | 4 +-
95 files changed, 1522 insertions(+), 934 deletions(-)
create mode 100644 arch/x86/kernel/macros.S
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2018-10-23 10:26 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2018-10-23 10:26 [GIT PULL] locking and misc x86 updates for v4.20 Ingo Molnar
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.