mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-11-27 01:11:31 +00:00
1a4a2bc460
Pull low-level x86 updates from Ingo Molnar:
"In this cycle this topic tree has become one of those 'super topics'
that accumulated a lot of changes:
- Add CONFIG_VMAP_STACK=y support to the core kernel and enable it on
x86 - preceded by an array of changes. v4.8 saw preparatory changes
in this area already - this is the rest of the work. Includes the
thread stack caching performance optimization. (Andy Lutomirski)
- switch_to() cleanups and all around enhancements. (Brian Gerst)
- A large number of dumpstack infrastructure enhancements and an
unwinder abstraction. The secret long term plan is safe(r) live
patching plus maybe another attempt at debuginfo based unwinding -
but all these current bits are standalone enhancements in a frame
pointer based debug environment as well. (Josh Poimboeuf)
- More __ro_after_init and const annotations. (Kees Cook)
- Enable KASLR for the vmemmap memory region. (Thomas Garnier)"
[ The virtually mapped stack changes are pretty fundamental, and not
x86-specific per se, even if they are only used on x86 right now. ]
* 'x86-asm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (70 commits)
x86/asm: Get rid of __read_cr4_safe()
thread_info: Use unsigned long for flags
x86/alternatives: Add stack frame dependency to alternative_call_2()
x86/dumpstack: Fix show_stack() task pointer regression
x86/dumpstack: Remove dump_trace() and related callbacks
x86/dumpstack: Convert show_trace_log_lvl() to use the new unwinder
oprofile/x86: Convert x86_backtrace() to use the new unwinder
x86/stacktrace: Convert save_stack_trace_*() to use the new unwinder
perf/x86: Convert perf_callchain_kernel() to use the new unwinder
x86/unwind: Add new unwind interface and implementations
x86/dumpstack: Remove NULL task pointer convention
fork: Optimize task creation by caching two thread stacks per CPU if CONFIG_VMAP_STACK=y
sched/core: Free the stack early if CONFIG_THREAD_INFO_IN_TASK
lib/syscall: Pin the task stack in collect_syscall()
x86/process: Pin the target stack in get_wchan()
x86/dumpstack: Pin the target stack when dumping it
kthread: Pin the stack via try_get_task_stack()/put_task_stack() in to_live_kthread() function
sched/core: Add try_get_task_stack() and put_task_stack()
x86/entry/64: Fix a minor comment rebase error
iommu/amd: Don't put completion-wait semaphore on stack
...
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| .. | ||
| .gitignore | ||
| apc.c | ||
| asm-offsets.c | ||
| audit.c | ||
| auxio_32.c | ||
| auxio_64.c | ||
| btext.c | ||
| central.c | ||
| cherrs.S | ||
| chmc.c | ||
| compat_audit.c | ||
| cpu.c | ||
| cpumap.c | ||
| cpumap.h | ||
| devices.c | ||
| dma.c | ||
| ds.c | ||
| dtlb_miss.S | ||
| dtlb_prot.S | ||
| ebus.c | ||
| entry.h | ||
| entry.S | ||
| etrap_32.S | ||
| etrap_64.S | ||
| fpu_traps.S | ||
| ftrace.c | ||
| getsetcc.S | ||
| head_32.S | ||
| head_64.S | ||
| helpers.S | ||
| hvapi.c | ||
| hvcalls.S | ||
| hvtramp.S | ||
| idprom.c | ||
| iommu.c | ||
| iommu_common.h | ||
| ioport.c | ||
| irq.h | ||
| irq_32.c | ||
| irq_64.c | ||
| itlb_miss.S | ||
| ivec.S | ||
| jump_label.c | ||
| kernel.h | ||
| kgdb_32.c | ||
| kgdb_64.c | ||
| kprobes.c | ||
| kstack.h | ||
| ktlb.S | ||
| ldc.c | ||
| led.c | ||
| leon_kernel.c | ||
| leon_pci.c | ||
| leon_pci_grpci1.c | ||
| leon_pci_grpci2.c | ||
| leon_pmc.c | ||
| leon_smp.c | ||
| Makefile | ||
| mdesc.c | ||
| misctrap.S | ||
| module.c | ||
| nmi.c | ||
| of_device_32.c | ||
| of_device_64.c | ||
| of_device_common.c | ||
| of_device_common.h | ||
| pci.c | ||
| pci_common.c | ||
| pci_fire.c | ||
| pci_impl.h | ||
| pci_msi.c | ||
| pci_psycho.c | ||
| pci_sabre.c | ||
| pci_schizo.c | ||
| pci_sun4v.c | ||
| pci_sun4v.h | ||
| pci_sun4v_asm.S | ||
| pcic.c | ||
| pcr.c | ||
| perf_event.c | ||
| pmc.c | ||
| power.c | ||
| process_32.c | ||
| process_64.c | ||
| prom.h | ||
| prom_32.c | ||
| prom_64.c | ||
| prom_common.c | ||
| prom_irqtrans.c | ||
| psycho_common.c | ||
| psycho_common.h | ||
| ptrace_32.c | ||
| ptrace_64.c | ||
| reboot.c | ||
| rtrap_32.S | ||
| rtrap_64.S | ||
| sbus.c | ||
| setup_32.c | ||
| setup_64.c | ||
| signal32.c | ||
| signal_32.c | ||
| signal_64.c | ||
| sigutil.h | ||
| sigutil_32.c | ||
| sigutil_64.c | ||
| smp_32.c | ||
| smp_64.c | ||
| sparc_ksyms_32.c | ||
| sparc_ksyms_64.c | ||
| spiterrs.S | ||
| sstate.c | ||
| stacktrace.c | ||
| starfire.c | ||
| sun4d_irq.c | ||
| sun4d_smp.c | ||
| sun4m_irq.c | ||
| sun4m_smp.c | ||
| sun4v_ivec.S | ||
| sun4v_tlb_miss.S | ||
| sys32.S | ||
| sys_sparc32.c | ||
| sys_sparc_32.c | ||
| sys_sparc_64.c | ||
| syscalls.S | ||
| sysfs.c | ||
| systbls.h | ||
| systbls_32.S | ||
| systbls_64.S | ||
| time_32.c | ||
| time_64.c | ||
| trampoline_32.S | ||
| trampoline_64.S | ||
| traps_32.c | ||
| traps_64.c | ||
| tsb.S | ||
| ttable_32.S | ||
| ttable_64.S | ||
| una_asm_32.S | ||
| una_asm_64.S | ||
| unaligned_32.c | ||
| unaligned_64.c | ||
| urtt_fill.S | ||
| utrap.S | ||
| vio.c | ||
| viohs.c | ||
| visemul.c | ||
| vmlinux.lds.S | ||
| windows.c | ||
| winfixup.S | ||
| wof.S | ||
| wuf.S | ||