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- An extensive rework of kexec and crash Kconfig from Eric DeVolder

Browse Source 
("refactor Kconfig to consolidate KEXEC and CRASH options").
 
 - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
   couple of macros to args.h").
 
 - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
   commands").
 
 - vsprintf inclusion rationalization from Andy Shevchenko
   ("lib/vsprintf: Rework header inclusions").
 
 - Switch the handling of kdump from a udev scheme to in-kernel handling,
   by Eric DeVolder ("crash: Kernel handling of CPU and memory hot
   un/plug").
 
 - Many singleton patches to various parts of the tree
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Merge tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:

 - An extensive rework of kexec and crash Kconfig from Eric DeVolder
   ("refactor Kconfig to consolidate KEXEC and CRASH options")

 - kernel.h slimming work from Andy Shevchenko ("kernel.h: Split out a
   couple of macros to args.h")

 - gdb feature work from Kuan-Ying Lee ("Add GDB memory helper
   commands")

 - vsprintf inclusion rationalization from Andy Shevchenko
   ("lib/vsprintf: Rework header inclusions")

 - Switch the handling of kdump from a udev scheme to in-kernel
   handling, by Eric DeVolder ("crash: Kernel handling of CPU and memory
   hot un/plug")

 - Many singleton patches to various parts of the tree

* tag 'mm-nonmm-stable-2023-08-28-22-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (81 commits)
  document while_each_thread(), change first_tid() to use for_each_thread()
  drivers/char/mem.c: shrink character device's devlist[] array
  x86/crash: optimize CPU changes
  crash: change crash_prepare_elf64_headers() to for_each_possible_cpu()
  crash: hotplug support for kexec_load()
  x86/crash: add x86 crash hotplug support
  crash: memory and CPU hotplug sysfs attributes
  kexec: exclude elfcorehdr from the segment digest
  crash: add generic infrastructure for crash hotplug support
  crash: move a few code bits to setup support of crash hotplug
  kstrtox: consistently use _tolower()
  kill do_each_thread()
  nilfs2: fix WARNING in mark_buffer_dirty due to discarded buffer reuse
  scripts/bloat-o-meter: count weak symbol sizes
  treewide: drop CONFIG_EMBEDDED
  lockdep: fix static memory detection even more
  lib/vsprintf: declare no_hash_pointers in sprintf.h
  lib/vsprintf: split out sprintf() and friends
  kernel/fork: stop playing lockless games for exe_file replacement
  adfs: delete unused "union adfs_dirtail" definition
  ...
This commit is contained in:
Linus Torvalds 2023-08-29 14:53:51 -07:00
commit d68b4b6f30
205 changed files with 2838 additions and 1377 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/ABI/testing/sysfs-devices-memory
View File

@ -110,3 +110,11 @@ Description:
link is created for memory section 9 on node0.
/sys/devices/system/node/node0/memory9 -> ../../memory/memory9
What: /sys/devices/system/memory/crash_hotplug
Date: Aug 2023
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description:
(RO) indicates whether or not the kernel directly supports
modifying the crash elfcorehdr for memory hot un/plug and/or
on/offline changes.

8
Documentation/ABI/testing/sysfs-devices-system-cpu
View File

@ -688,3 +688,11 @@ Description:
(RO) the list of CPUs that are isolated and don't
participate in load balancing. These CPUs are set by
boot parameter "isolcpus=".
What: /sys/devices/system/cpu/crash_hotplug
Date: Aug 2023
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description:
(RO) indicates whether or not the kernel directly supports
modifying the crash elfcorehdr for CPU hot un/plug and/or
on/offline changes.

8
Documentation/admin-guide/mm/memory-hotplug.rst
View File

@ -291,6 +291,14 @@ The following files are currently defined:
Availability depends on the CONFIG_ARCH_MEMORY_PROBE
kernel configuration option.
``uevent`` read-write: generic udev file for device subsystems.
``crash_hotplug`` read-only: when changes to the system memory map
occur due to hot un/plug of memory, this file contains
'1' if the kernel updates the kdump capture kernel memory
map itself (via elfcorehdr), or '0' if userspace must update
the kdump capture kernel memory map.
Availability depends on the CONFIG_MEMORY_HOTPLUG kernel
configuration option.
====================== =========================================================
.. note::

18
Documentation/core-api/cpu_hotplug.rst
View File

@ -741,6 +741,24 @@ will receive all events. A script like::
can process the event further.
When changes to the CPUs in the system occur, the sysfs file
/sys/devices/system/cpu/crash_hotplug contains '1' if the kernel
updates the kdump capture kernel list of CPUs itself (via elfcorehdr),
or '0' if userspace must update the kdump capture kernel list of CPUs.
The availability depends on the CONFIG_HOTPLUG_CPU kernel configuration
option.
To skip userspace processing of CPU hot un/plug events for kdump
(i.e. the unload-then-reload to obtain a current list of CPUs), this sysfs
file can be used in a udev rule as follows:
SUBSYSTEM=="cpu", ATTRS{crash_hotplug}=="1", GOTO="kdump_reload_end"
For a CPU hot un/plug event, if the architecture supports kernel updates
of the elfcorehdr (which contains the list of CPUs), then the rule skips
the unload-then-reload of the kdump capture kernel.
Kernel Inline Documentations Reference
======================================

17
arch/Kconfig
View File

@ -11,19 +11,6 @@ source "arch/$(SRCARCH)/Kconfig"
menu "General architecture-dependent options"
config CRASH_CORE
bool
config KEXEC_CORE
select CRASH_CORE
bool
config KEXEC_ELF
bool
config HAVE_IMA_KEXEC
bool
config ARCH_HAS_SUBPAGE_FAULTS
bool
help
@ -748,7 +735,9 @@ config HAS_LTO_CLANG
depends on $(success,$(AR) --help | head -n 1 | grep -qi llvm)
depends on ARCH_SUPPORTS_LTO_CLANG
depends on !FTRACE_MCOUNT_USE_RECORDMCOUNT
depends on !KASAN || KASAN_HW_TAGS
# https://github.com/ClangBuiltLinux/linux/issues/1721
depends on (!KASAN || KASAN_HW_TAGS || CLANG_VERSION >= 170000) || !DEBUG_INFO
depends on (!KCOV || CLANG_VERSION >= 170000) || !DEBUG_INFO
depends on !GCOV_KERNEL
help
The compiler and Kconfig options support building with Clang's

2
arch/arc/configs/axs101_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set

2
arch/arc/configs/axs103_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set

2
arch/arc/configs/axs103_smp_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set

2
arch/arc/configs/haps_hs_smp_defconfig
View File

@ -11,7 +11,7 @@ CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set

2
arch/arc/configs/hsdk_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_NAMESPACES=y
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_BLK_DEV_RAM=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set

2
arch/arc/configs/nsim_700_defconfig
View File

@ -12,7 +12,7 @@ CONFIG_NAMESPACES=y
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/arc/configs/nsimosci_defconfig
View File

@ -11,7 +11,7 @@ CONFIG_NAMESPACES=y
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/arc/configs/nsimosci_hs_defconfig
View File

@ -11,7 +11,7 @@ CONFIG_NAMESPACES=y
# CONFIG_PID_NS is not set
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/arc/configs/tb10x_defconfig
View File

@ -16,7 +16,7 @@ CONFIG_INITRAMFS_ROOT_GID=501
# CONFIG_RD_GZIP is not set
CONFIG_KALLSYMS_ALL=y
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_COMPAT_BRK is not set
CONFIG_ISA_ARCOMPACT=y
CONFIG_MODULES=y

2
arch/arc/configs/vdk_hs38_defconfig
View File

@ -4,7 +4,7 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set

2
arch/arc/configs/vdk_hs38_smp_defconfig
View File

@ -4,7 +4,7 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set

31
arch/arm/Kconfig
View File

@ -250,7 +250,7 @@ config ARCH_MTD_XIP
bool
config ARM_PATCH_PHYS_VIRT
bool "Patch physical to virtual translations at runtime" if EMBEDDED
bool "Patch physical to virtual translations at runtime" if !ARCH_MULTIPLATFORM
default y
depends on MMU
help
@ -1645,20 +1645,8 @@ config XIP_DEFLATED_DATA
copied, saving some precious ROM space. A possible drawback is a
slightly longer boot delay.
config KEXEC
bool "Kexec system call (EXPERIMENTAL)"
depends on (!SMP || PM_SLEEP_SMP)
depends on MMU
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
initially work for you.
config ARCH_SUPPORTS_KEXEC
def_bool (!SMP || PM_SLEEP_SMP) && MMU
config ATAGS_PROC
bool "Export atags in procfs"
@ -1668,17 +1656,8 @@ config ATAGS_PROC
Should the atags used to boot the kernel be exported in an "atags"
file in procfs. Useful with kexec.
config CRASH_DUMP
bool "Build kdump crash kernel (EXPERIMENTAL)"
help
Generate crash dump after being started by kexec. This should
be normally only set in special crash dump kernels which are
loaded in the main kernel with kexec-tools into a specially
reserved region and then later executed after a crash by
kdump/kexec. The crash dump kernel must be compiled to a
memory address not used by the main kernel
For more details see Documentation/admin-guide/kdump/kdump.rst
config ARCH_SUPPORTS_CRASH_DUMP
def_bool y
config AUTO_ZRELADDR
bool "Auto calculation of the decompressed kernel image address" if !ARCH_MULTIPLATFORM

2
arch/arm/configs/aspeed_g4_defconfig
View File

@ -15,7 +15,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_UID16 is not set
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_ASPEED=y

2
arch/arm/configs/aspeed_g5_defconfig
View File

@ -15,7 +15,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_UID16 is not set
# CONFIG_SYSFS_SYSCALL is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
CONFIG_ARCH_MULTI_V6=y
CONFIG_ARCH_ASPEED=y

2
arch/arm/configs/at91_dt_defconfig
View File

@ -7,7 +7,7 @@ CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_ARCH_MULTI_V4T=y
CONFIG_ARCH_MULTI_V5=y
# CONFIG_ARCH_MULTI_V7 is not set

2
arch/arm/configs/axm55xx_defconfig
View File

@ -21,7 +21,7 @@ CONFIG_NAMESPACES=y
CONFIG_SCHED_AUTOGROUP=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
CONFIG_ARCH_AXXIA=y
CONFIG_ARM_LPAE=y

2
arch/arm/configs/bcm2835_defconfig
View File

@ -19,7 +19,7 @@ CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
CONFIG_CC_STACKPROTECTOR_REGULAR=y
CONFIG_ARCH_MULTI_V6=y

2
arch/arm/configs/clps711x_defconfig
View File

@ -3,7 +3,7 @@ CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_RD_LZMA=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_JUMP_LABEL=y
CONFIG_PARTITION_ADVANCED=y
CONFIG_ARCH_CLPS711X=y

2
arch/arm/configs/keystone_defconfig
View File

@ -14,7 +14,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_ELF_CORE is not set
# CONFIG_BASE_FULL is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
CONFIG_ARCH_KEYSTONE=y
CONFIG_ARM_LPAE=y

2
arch/arm/configs/lpc18xx_defconfig
View File

@ -14,7 +14,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_SIGNALFD is not set
# CONFIG_EVENTFD is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_MMU is not set
CONFIG_ARCH_LPC18XX=y
CONFIG_SET_MEM_PARAM=y

2
arch/arm/configs/lpc32xx_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_LPC32XX=y
CONFIG_AEABI=y

2
arch/arm/configs/milbeaut_m10v_defconfig
View File

@ -3,7 +3,7 @@ CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
CONFIG_ARCH_MILBEAUT=y
CONFIG_ARCH_MILBEAUT_M10V=y

2
arch/arm/configs/moxart_defconfig
View File

@ -10,7 +10,7 @@ CONFIG_IKCONFIG_PROC=y
# CONFIG_TIMERFD is not set
# CONFIG_EVENTFD is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_ARCH_MULTI_V4=y
# CONFIG_ARCH_MULTI_V7 is not set

2
arch/arm/configs/multi_v4t_defconfig
View File

@ -2,7 +2,7 @@ CONFIG_KERNEL_LZMA=y
CONFIG_SYSVIPC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_ARCH_MULTI_V4T=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_AT91=y

2
arch/arm/configs/multi_v7_defconfig
View File

@ -3,7 +3,7 @@ CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
CONFIG_ARCH_VIRT=y
CONFIG_ARCH_AIROHA=y

2
arch/arm/configs/pxa_defconfig
View File

@ -11,7 +11,7 @@ CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=13
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
# CONFIG_ARCH_MULTI_V7 is not set
CONFIG_ARCH_PXA=y

2
arch/arm/configs/qcom_defconfig
View File

@ -7,7 +7,7 @@ CONFIG_IKCONFIG_PROC=y
CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
CONFIG_ARCH_QCOM=y
CONFIG_ARCH_MSM8X60=y

2
arch/arm/configs/sama5_defconfig
View File

@ -5,7 +5,7 @@ CONFIG_HIGH_RES_TIMERS=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_ARCH_AT91=y
CONFIG_SOC_SAMA5D2=y
CONFIG_SOC_SAMA5D3=y

2
arch/arm/configs/sama7_defconfig
View File

@ -12,7 +12,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_FHANDLE is not set
# CONFIG_IO_URING is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_ARCH_AT91=y
CONFIG_SOC_SAMA7G5=y
CONFIG_ATMEL_CLOCKSOURCE_TCB=y

2
arch/arm/configs/socfpga_defconfig
View File

@ -7,7 +7,7 @@ CONFIG_CGROUPS=y
CONFIG_CPUSETS=y
CONFIG_NAMESPACES=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
CONFIG_ARCH_INTEL_SOCFPGA=y
CONFIG_ARM_THUMBEE=y

2
arch/arm/configs/stm32_defconfig
View File

@ -11,7 +11,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_SIGNALFD is not set
# CONFIG_EVENTFD is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_BLK_DEV_BSG is not set
# CONFIG_MMU is not set
CONFIG_ARCH_STM32=y

2
arch/arm/configs/tegra_defconfig
View File

@ -14,7 +14,7 @@ CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_BLK_DEV_INITRD=y
# CONFIG_ELF_CORE is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
CONFIG_ARCH_TEGRA=y
CONFIG_SMP=y

2
arch/arm/configs/vf610m4_defconfig
View File

@ -5,7 +5,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_RD_XZ is not set
# CONFIG_RD_LZ4 is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_MMU is not set
CONFIG_ARCH_MXC=y
CONFIG_SOC_VF610=y

2
arch/arm/include/asm/irq.h
View File

@ -32,7 +32,7 @@ void handle_IRQ(unsigned int, struct pt_regs *);
#include <linux/cpumask.h>
extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
bool exclude_self);
int exclude_cpu);
#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
#endif

4
arch/arm/kernel/smp.c
View File

@ -846,7 +846,7 @@ static void raise_nmi(cpumask_t *mask)
__ipi_send_mask(ipi_desc[IPI_CPU_BACKTRACE], mask);
}
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu)
{
nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_nmi);
nmi_trigger_cpumask_backtrace(mask, exclude_cpu, raise_nmi);
}

62
arch/arm64/Kconfig
View File

@ -1460,60 +1460,28 @@ config PARAVIRT_TIME_ACCOUNTING
If in doubt, say N here.
config KEXEC
depends on PM_SLEEP_SMP
select KEXEC_CORE
bool "kexec system call"
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
config ARCH_SUPPORTS_KEXEC
def_bool PM_SLEEP_SMP
config KEXEC_FILE
bool "kexec file based system call"
select KEXEC_CORE
select HAVE_IMA_KEXEC if IMA
help
This is new version of kexec system call. This system call is
file based and takes file descriptors as system call argument
for kernel and initramfs as opposed to list of segments as
accepted by previous system call.
config ARCH_SUPPORTS_KEXEC_FILE
def_bool y
config KEXEC_SIG
bool "Verify kernel signature during kexec_file_load() syscall"
config ARCH_SELECTS_KEXEC_FILE
def_bool y
depends on KEXEC_FILE
help
Select this option to verify a signature with loaded kernel
image. If configured, any attempt of loading a image without
valid signature will fail.
select HAVE_IMA_KEXEC if IMA
In addition to that option, you need to enable signature
verification for the corresponding kernel image type being
loaded in order for this to work.
config ARCH_SUPPORTS_KEXEC_SIG
def_bool y
config KEXEC_IMAGE_VERIFY_SIG
bool "Enable Image signature verification support"
default y
depends on KEXEC_SIG
depends on EFI && SIGNED_PE_FILE_VERIFICATION
help
Enable Image signature verification support.
config ARCH_SUPPORTS_KEXEC_IMAGE_VERIFY_SIG
def_bool y
comment "Support for PE file signature verification disabled"
depends on KEXEC_SIG
depends on !EFI || !SIGNED_PE_FILE_VERIFICATION
config ARCH_DEFAULT_KEXEC_IMAGE_VERIFY_SIG
def_bool y
config CRASH_DUMP
bool "Build kdump crash kernel"
help
Generate crash dump after being started by kexec. This should
be normally only set in special crash dump kernels which are
loaded in the main kernel with kexec-tools into a specially
reserved region and then later executed after a crash by
kdump/kexec.
For more details see Documentation/admin-guide/kdump/kdump.rst
config ARCH_SUPPORTS_CRASH_DUMP
def_bool y
config TRANS_TABLE
def_bool y

2
arch/hexagon/configs/comet_defconfig
View File

@ -14,7 +14,7 @@ CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=18
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_BLK_DEV_BSG is not set
CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"

30
arch/ia64/Kconfig
View File

@ -362,32 +362,14 @@ config IA64_HP_AML_NFW
the "force" module parameter, e.g., with the "aml_nfw.force"
kernel command line option.
config KEXEC
bool "kexec system call"
depends on !SMP || HOTPLUG_CPU
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
The name comes from the similarity to the exec system call.
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
initially work for you. As of this writing the exact hardware
interface is strongly in flux, so no good recommendation can be
made.
config CRASH_DUMP
bool "kernel crash dumps"
depends on IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU)
help
Generate crash dump after being started by kexec.
endmenu
config ARCH_SUPPORTS_KEXEC
def_bool !SMP || HOTPLUG_CPU
config ARCH_SUPPORTS_CRASH_DUMP
def_bool IA64_MCA_RECOVERY && (!SMP || HOTPLUG_CPU)
menu "Power management and ACPI options"
source "kernel/power/Kconfig"

17
arch/ia64/include/asm/cmpxchg.h
View File

@ -13,4 +13,21 @@
#define arch_cmpxchg_local arch_cmpxchg
#define arch_cmpxchg64_local arch_cmpxchg64
#ifdef CONFIG_IA64_DEBUG_CMPXCHG
# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128;
# define CMPXCHG_BUGCHECK(v) \
do { \
if (_cmpxchg_bugcheck_count-- <= 0) { \
void *ip; \
extern int _printk(const char *fmt, ...); \
ip = (void *) ia64_getreg(_IA64_REG_IP); \
_printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));\
break; \
} \
} while (0)
#else /* !CONFIG_IA64_DEBUG_CMPXCHG */
# define CMPXCHG_BUGCHECK_DECL
# define CMPXCHG_BUGCHECK(v)
#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
#endif /* _ASM_IA64_CMPXCHG_H */

17
arch/ia64/include/uapi/asm/cmpxchg.h
View File

@ -133,23 +133,6 @@ extern long ia64_cmpxchg_called_with_bad_pointer(void);
#define cmpxchg64_local cmpxchg64
#endif
#ifdef CONFIG_IA64_DEBUG_CMPXCHG
# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128;
# define CMPXCHG_BUGCHECK(v) \
do { \
if (_cmpxchg_bugcheck_count-- <= 0) { \
void *ip; \
extern int _printk(const char *fmt, ...); \
ip = (void *) ia64_getreg(_IA64_REG_IP); \
_printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));\
break; \
} \
} while (0)
#else /* !CONFIG_IA64_DEBUG_CMPXCHG */
# define CMPXCHG_BUGCHECK_DECL
# define CMPXCHG_BUGCHECK(v)
#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
#endif /* !__ASSEMBLY__ */
#endif /* _UAPI_ASM_IA64_CMPXCHG_H */

4
arch/ia64/kernel/mca.c
View File

@ -1630,10 +1630,10 @@ default_monarch_init_process(struct notifier_block *self, unsigned long val, voi
}
printk("\n\n");
if (read_trylock(&tasklist_lock)) {
do_each_thread (g, t) {
for_each_process_thread(g, t) {
printk("\nBacktrace of pid %d (%s)\n", t->pid, t->comm);
show_stack(t, NULL, KERN_DEFAULT);
} while_each_thread (g, t);
}
read_unlock(&tasklist_lock);
}
/* FIXME: This will not restore zapped printk locks. */

26
arch/loongarch/Kconfig
View File

@ -538,28 +538,16 @@ config CPU_HAS_PREFETCH
bool
default y
config KEXEC
bool "Kexec system call"
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
config ARCH_SUPPORTS_KEXEC
def_bool y
The name comes from the similarity to the exec system call.
config ARCH_SUPPORTS_CRASH_DUMP
def_bool y
config CRASH_DUMP
bool "Build kdump crash kernel"
config ARCH_SELECTS_CRASH_DUMP
def_bool y
depends on CRASH_DUMP
select RELOCATABLE
help
Generate crash dump after being started by kexec. This should
be normally only set in special crash dump kernels which are
loaded in the main kernel with kexec-tools into a specially
reserved region and then later executed after a crash by
kdump/kexec.
For more details see Documentation/admin-guide/kdump/kdump.rst
config RELOCATABLE
bool "Relocatable kernel"

2
arch/loongarch/include/asm/irq.h
View File

@ -40,7 +40,7 @@ void spurious_interrupt(void);
#define NR_IRQS_LEGACY 16
#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
void arch_trigger_cpumask_backtrace(const struct cpumask *mask, bool exclude_self);
void arch_trigger_cpumask_backtrace(const struct cpumask *mask, int exclude_cpu);
#define MAX_IO_PICS 2
#define NR_IRQS (64 + (256 * MAX_IO_PICS))

4
arch/loongarch/kernel/process.c
View File

@ -338,9 +338,9 @@ static void raise_backtrace(cpumask_t *mask)
}
}
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu)
{
nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace);
nmi_trigger_cpumask_backtrace(mask, exclude_cpu, raise_backtrace);
}
#ifdef CONFIG_64BIT

19
arch/m68k/Kconfig
View File

@ -89,23 +89,8 @@ config MMU_SUN3
bool
depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
config KEXEC
bool "kexec system call"
depends on M68KCLASSIC && MMU
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
The name comes from the similarity to the exec system call.
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
initially work for you. As of this writing the exact hardware
interface is strongly in flux, so no good recommendation can be
made.
config ARCH_SUPPORTS_KEXEC
def_bool M68KCLASSIC && MMU
config BOOTINFO_PROC
bool "Export bootinfo in procfs"

2
arch/m68k/configs/amcore_defconfig
View File

@ -8,7 +8,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_AIO is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_MEMBARRIER is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/m68k/configs/m5475evb_defconfig
View File

@ -8,7 +8,7 @@ CONFIG_LOG_BUF_SHIFT=14
# CONFIG_EVENTFD is not set
# CONFIG_SHMEM is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MODULES=y
# CONFIG_BLK_DEV_BSG is not set
CONFIG_COLDFIRE=y

2
arch/m68k/configs/stmark2_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_AIO is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_MEMBARRIER is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_COLDFIRE=y

2
arch/microblaze/configs/mmu_defconfig
View File

@ -7,7 +7,7 @@ CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
# CONFIG_BASE_FULL is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR=1
CONFIG_XILINX_MICROBLAZE0_USE_PCMP_INSTR=1
CONFIG_XILINX_MICROBLAZE0_USE_BARREL=1

30
arch/mips/Kconfig
View File

@ -2878,33 +2878,11 @@ config HZ
config SCHED_HRTICK
def_bool HIGH_RES_TIMERS
config KEXEC
bool "Kexec system call"
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
config ARCH_SUPPORTS_KEXEC
def_bool y
The name comes from the similarity to the exec system call.
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
initially work for you. As of this writing the exact hardware
interface is strongly in flux, so no good recommendation can be
made.
config CRASH_DUMP
bool "Kernel crash dumps"
help
Generate crash dump after being started by kexec.
This should be normally only set in special crash dump kernels
which are loaded in the main kernel with kexec-tools into
a specially reserved region and then later executed after
a crash by kdump/kexec. The crash dump kernel must be compiled
to a memory address not used by the main kernel or firmware using
PHYSICAL_START.
config ARCH_SUPPORTS_CRASH_DUMP
def_bool y
config PHYSICAL_START
hex "Physical address where the kernel is loaded"

2
arch/mips/cavium-octeon/setup.c
View File

@ -1240,7 +1240,7 @@ static int __init octeon_no_pci_init(void)
*/
octeon_dummy_iospace = vzalloc(IO_SPACE_LIMIT);
set_io_port_base((unsigned long)octeon_dummy_iospace);
ioport_resource.start = MAX_RESOURCE;
ioport_resource.start = RESOURCE_SIZE_MAX;
ioport_resource.end = 0;
return 0;
}

2
arch/mips/configs/ath25_defconfig
View File

@ -11,7 +11,7 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_FHANDLE is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/mips/configs/ath79_defconfig
View File

@ -5,7 +5,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_RD_GZIP is not set
# CONFIG_AIO is not set
# CONFIG_KALLSYMS is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/mips/configs/bcm47xx_defconfig
View File

@ -2,7 +2,7 @@ CONFIG_SYSVIPC=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_BCM47XX=y
CONFIG_PCI=y
# CONFIG_SUSPEND is not set

2
arch/mips/configs/ci20_defconfig
View File

@ -18,7 +18,7 @@ CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MACH_INGENIC_SOC=y
CONFIG_JZ4780_CI20=y
CONFIG_HIGHMEM=y

2
arch/mips/configs/cu1000-neo_defconfig
View File

@ -15,7 +15,7 @@ CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_MACH_INGENIC_SOC=y

2
arch/mips/configs/cu1830-neo_defconfig
View File

@ -15,7 +15,7 @@ CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_MACH_INGENIC_SOC=y

2
arch/mips/configs/db1xxx_defconfig
View File

@ -17,7 +17,7 @@ CONFIG_CGROUP_FREEZER=y
CONFIG_CGROUP_DEVICE=y
CONFIG_CGROUP_CPUACCT=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MIPS_ALCHEMY=y
CONFIG_HZ_100=y
CONFIG_PCI=y

2
arch/mips/configs/gcw0_defconfig
View File

@ -2,7 +2,7 @@ CONFIG_DEFAULT_HOSTNAME="gcw0"
CONFIG_NO_HZ_IDLE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_PREEMPT_VOLUNTARY=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
CONFIG_MACH_INGENIC_SOC=y
CONFIG_JZ4770_GCW0=y

2
arch/mips/configs/generic_defconfig
View File

@ -17,7 +17,7 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BPF_SYSCALL=y
CONFIG_USERFAULTFD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_CPU_LITTLE_ENDIAN=y

2
arch/mips/configs/loongson2k_defconfig
View File

@ -18,7 +18,7 @@ CONFIG_SCHED_AUTOGROUP=y
CONFIG_SYSFS_DEPRECATED=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MACH_LOONGSON64=y
# CONFIG_CPU_LOONGSON3_CPUCFG_EMULATION is not set
CONFIG_HZ_256=y

2
arch/mips/configs/loongson3_defconfig
View File

@ -26,7 +26,7 @@ CONFIG_SYSFS_DEPRECATED=y
CONFIG_RELAY=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BPF_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PERF_EVENTS=y
CONFIG_MACH_LOONGSON64=y
CONFIG_CPU_HAS_MSA=y

2
arch/mips/configs/malta_qemu_32r6_defconfig
View File

@ -5,7 +5,7 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R6=y

2
arch/mips/configs/maltaaprp_defconfig
View File

@ -5,7 +5,7 @@ CONFIG_AUDIT=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y

2
arch/mips/configs/maltasmvp_defconfig
View File

@ -5,7 +5,7 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y

2
arch/mips/configs/maltasmvp_eva_defconfig
View File

@ -5,7 +5,7 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y

2
arch/mips/configs/maltaup_defconfig
View File

@ -6,7 +6,7 @@ CONFIG_NO_HZ=y
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=15
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MIPS_MALTA=y
CONFIG_CPU_LITTLE_ENDIAN=y
CONFIG_CPU_MIPS32_R2=y

2
arch/mips/configs/omega2p_defconfig
View File

@ -17,7 +17,7 @@ CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/mips/configs/pic32mzda_defconfig
View File

@ -7,7 +7,7 @@ CONFIG_IKCONFIG_PROC=y
CONFIG_LOG_BUF_SHIFT=14
CONFIG_RELAY=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_COMPAT_BRK is not set
CONFIG_MACH_PIC32=y
CONFIG_DTB_PIC32_MZDA_SK=y

2
arch/mips/configs/qi_lb60_defconfig
View File

@ -3,7 +3,7 @@ CONFIG_SYSVIPC=y
# CONFIG_CROSS_MEMORY_ATTACH is not set
CONFIG_LOG_BUF_SHIFT=14
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_MACH_INGENIC_SOC=y

2
arch/mips/configs/rs90_defconfig
View File

@ -15,7 +15,7 @@ CONFIG_LD_DEAD_CODE_DATA_ELIMINATION=y
# CONFIG_IO_URING is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_KALLSYMS is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_PERF_EVENTS is not set
CONFIG_PROFILING=y
CONFIG_MACH_INGENIC_SOC=y

2
arch/mips/configs/rt305x_defconfig
View File

@ -7,7 +7,7 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_AIO is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/mips/configs/vocore2_defconfig
View File

@ -17,7 +17,7 @@ CONFIG_NAMESPACES=y
CONFIG_USER_NS=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/mips/configs/xway_defconfig
View File

@ -7,7 +7,7 @@ CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_AIO is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/mips/include/asm/irq.h
View File

@ -77,7 +77,7 @@ extern int cp0_fdc_irq;
extern int get_c0_fdc_int(void);
void arch_trigger_cpumask_backtrace(const struct cpumask *mask,
bool exclude_self);
int exclude_cpu);
#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
#endif /* _ASM_IRQ_H */

4
arch/mips/kernel/process.c
View File

@ -750,9 +750,9 @@ static void raise_backtrace(cpumask_t *mask)
}
}
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu)
{
nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace);
nmi_trigger_cpumask_backtrace(mask, exclude_cpu, raise_backtrace);
}
int mips_get_process_fp_mode(struct task_struct *task)

2
arch/nios2/configs/10m50_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_LOG_BUF_SHIFT=14
# CONFIG_EVENTFD is not set
# CONFIG_SHMEM is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_NIOS2_MEM_BASE=0x8000000

2
arch/nios2/configs/3c120_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_LOG_BUF_SHIFT=14
# CONFIG_EVENTFD is not set
# CONFIG_SHMEM is not set
# CONFIG_AIO is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_NIOS2_MEM_BASE=0x10000000

2
arch/openrisc/configs/or1klitex_defconfig
View File

@ -6,7 +6,7 @@ CONFIG_USER_NS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_OPENRISC_BUILTIN_DTB="or1klitex"
CONFIG_HZ_100=y
CONFIG_OPENRISC_HAVE_SHADOW_GPRS=y

34
arch/parisc/Kconfig
View File

@ -359,29 +359,17 @@ config NR_CPUS
default "8" if 64BIT
default "16"
config KEXEC
bool "Kexec system call"
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
It is an ongoing process to be certain the hardware in a machine
shutdown, so do not be surprised if this code does not
initially work for you.
config KEXEC_FILE
bool "kexec file based system call"
select KEXEC_CORE
select KEXEC_ELF
help
This enables the kexec_file_load() System call. This is
file based and takes file descriptors as system call argument
for kernel and initramfs as opposed to list of segments as
accepted by previous system call.
endmenu
config ARCH_SUPPORTS_KEXEC
def_bool y
config ARCH_SUPPORTS_KEXEC_FILE
def_bool y
config ARCH_SELECTS_KEXEC_FILE
def_bool y
depends on KEXEC_FILE
select KEXEC_ELF
source "drivers/parisc/Kconfig"

55
arch/powerpc/Kconfig
View File

@ -592,41 +592,21 @@ config PPC64_SUPPORTS_MEMORY_FAILURE
default "y" if PPC_POWERNV
select ARCH_SUPPORTS_MEMORY_FAILURE
config KEXEC
bool "kexec system call"
depends on PPC_BOOK3S || PPC_E500 || (44x && !SMP)
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
config ARCH_SUPPORTS_KEXEC
def_bool PPC_BOOK3S || PPC_E500 || (44x && !SMP)
The name comes from the similarity to the exec system call.
config ARCH_SUPPORTS_KEXEC_FILE
def_bool PPC64 && CRYPTO=y && CRYPTO_SHA256=y
It is an ongoing process to be certain the hardware in a machine
is properly shutdown, so do not be surprised if this code does not
initially work for you. As of this writing the exact hardware
interface is strongly in flux, so no good recommendation can be
made.
config KEXEC_FILE
bool "kexec file based system call"
select KEXEC_CORE
select HAVE_IMA_KEXEC if IMA
select KEXEC_ELF
depends on PPC64
depends on CRYPTO=y
depends on CRYPTO_SHA256=y
help
This is a new version of the kexec system call. This call is
file based and takes in file descriptors as system call arguments
for kernel and initramfs as opposed to a list of segments as is the
case for the older kexec call.
config ARCH_HAS_KEXEC_PURGATORY
config ARCH_SUPPORTS_KEXEC_PURGATORY
def_bool KEXEC_FILE
config ARCH_SELECTS_KEXEC_FILE
def_bool y
depends on KEXEC_FILE
select KEXEC_ELF
select HAVE_IMA_KEXEC if IMA
config PPC64_BIG_ENDIAN_ELF_ABI_V2
# Option is available to BFD, but LLD does not support ELFv1 so this is
# always true there.
@ -686,14 +666,13 @@ config RELOCATABLE_TEST
loaded at, which tends to be non-zero and therefore test the
relocation code.
config CRASH_DUMP
bool "Build a dump capture kernel"
depends on PPC64 || PPC_BOOK3S_32 || PPC_85xx || (44x && !SMP)
config ARCH_SUPPORTS_CRASH_DUMP
def_bool PPC64 || PPC_BOOK3S_32 || PPC_85xx || (44x && !SMP)
config ARCH_SELECTS_CRASH_DUMP
def_bool y
depends on CRASH_DUMP
select RELOCATABLE if PPC64 || 44x || PPC_85xx
help
Build a kernel suitable for use as a dump capture kernel.
The same kernel binary can be used as production kernel and dump
capture kernel.
config FA_DUMP
bool "Firmware-assisted dump"

2
arch/powerpc/configs/40x/klondike_defconfig
View File

@ -4,7 +4,7 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_SYSFS_DEPRECATED=y
CONFIG_SYSFS_DEPRECATED_V2=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_APM8018X=y

2
arch/powerpc/configs/44x/fsp2_defconfig
View File

@ -15,7 +15,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_RD_LZ4 is not set
CONFIG_KALLSYMS_ALL=y
CONFIG_BPF_SYSCALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PROFILING=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y

2
arch/powerpc/configs/52xx/tqm5200_defconfig
View File

@ -3,7 +3,7 @@ CONFIG_LOG_BUF_SHIFT=14
CONFIG_BLK_DEV_INITRD=y
# CONFIG_KALLSYMS is not set
# CONFIG_EPOLL is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_MODULES=y
CONFIG_MODULE_UNLOAD=y
CONFIG_MODVERSIONS=y

2
arch/powerpc/configs/mgcoge_defconfig
View File

@ -9,7 +9,7 @@ CONFIG_BLK_DEV_INITRD=y
# CONFIG_RD_GZIP is not set
CONFIG_KALLSYMS_ALL=y
# CONFIG_PCSPKR_PLATFORM is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
CONFIG_PARTITION_ADVANCED=y
# CONFIG_PPC_PMAC is not set
CONFIG_PPC_82xx=y

2
arch/powerpc/configs/microwatt_defconfig
View File

@ -8,7 +8,7 @@ CONFIG_CGROUPS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_KALLSYMS_ALL=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_SLUB_DEBUG is not set
# CONFIG_COMPAT_BRK is not set

2
arch/powerpc/configs/ps3_defconfig
View File

@ -3,7 +3,7 @@ CONFIG_POSIX_MQUEUE=y
CONFIG_HIGH_RES_TIMERS=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_PERF_EVENTS is not set
CONFIG_PROFILING=y
CONFIG_PPC64=y

2
arch/powerpc/include/asm/irq.h
View File

@ -55,7 +55,7 @@ int irq_choose_cpu(const struct cpumask *mask);
#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI)
extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask,
bool exclude_self);
int exclude_cpu);
#define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace
#endif

4
arch/powerpc/kernel/stacktrace.c
View File

@ -221,8 +221,8 @@ static void raise_backtrace_ipi(cpumask_t *mask)
}
}
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self)
void arch_trigger_cpumask_backtrace(const cpumask_t *mask, int exclude_cpu)
{
nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace_ipi);
nmi_trigger_cpumask_backtrace(mask, exclude_cpu, raise_backtrace_ipi);
}
#endif /* defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI) */

4
arch/powerpc/kernel/watchdog.c
View File

@ -245,7 +245,7 @@ static void watchdog_smp_panic(int cpu)
__cpumask_clear_cpu(c, &wd_smp_cpus_ipi);
}
} else {
trigger_allbutself_cpu_backtrace();
trigger_allbutcpu_cpu_backtrace(cpu);
cpumask_clear(&wd_smp_cpus_ipi);
}
@ -416,7 +416,7 @@ DEFINE_INTERRUPT_HANDLER_NMI(soft_nmi_interrupt)
xchg(&__wd_nmi_output, 1); // see wd_lockup_ipi
if (sysctl_hardlockup_all_cpu_backtrace)
trigger_allbutself_cpu_backtrace();
trigger_allbutcpu_cpu_backtrace(cpu);
if (hardlockup_panic)
nmi_panic(regs, "Hard LOCKUP");

2
arch/riscv/Kbuild
View File

@ -5,7 +5,7 @@ obj-$(CONFIG_BUILTIN_DTB) += boot/dts/
obj-y += errata/
obj-$(CONFIG_KVM) += kvm/
obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += purgatory/
obj-$(CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY) += purgatory/
# for cleaning
subdir- += boot

46
arch/riscv/Kconfig
View File

@ -656,48 +656,30 @@ config RISCV_BOOT_SPINWAIT
If unsure what to do here, say N.
config KEXEC
bool "Kexec system call"
depends on MMU
config ARCH_SUPPORTS_KEXEC
def_bool MMU
config ARCH_SELECTS_KEXEC
def_bool y
depends on KEXEC
select HOTPLUG_CPU if SMP
select KEXEC_CORE
help
kexec is a system call that implements the ability to shutdown your
current kernel, and to start another kernel. It is like a reboot
but it is independent of the system firmware. And like a reboot
you can start any kernel with it, not just Linux.
The name comes from the similarity to the exec system call.
config ARCH_SUPPORTS_KEXEC_FILE
def_bool 64BIT && MMU
config KEXEC_FILE
bool "kexec file based systmem call"
depends on 64BIT && MMU
config ARCH_SELECTS_KEXEC_FILE
def_bool y
depends on KEXEC_FILE
select HAVE_IMA_KEXEC if IMA
select KEXEC_CORE
select KEXEC_ELF
help
This is new version of kexec system call. This system call is
file based and takes file descriptors as system call argument
for kernel and initramfs as opposed to list of segments as
accepted by previous system call.
If you don't know what to do here, say Y.
config ARCH_HAS_KEXEC_PURGATORY
config ARCH_SUPPORTS_KEXEC_PURGATORY
def_bool KEXEC_FILE
depends on CRYPTO=y
depends on CRYPTO_SHA256=y
config CRASH_DUMP
bool "Build kdump crash kernel"
help
Generate crash dump after being started by kexec. This should
be normally only set in special crash dump kernels which are
loaded in the main kernel with kexec-tools into a specially
reserved region and then later executed after a crash by
kdump/kexec.
For more details see Documentation/admin-guide/kdump/kdump.rst
config ARCH_SUPPORTS_CRASH_DUMP
def_bool y
config COMPAT
bool "Kernel support for 32-bit U-mode"

2
arch/riscv/configs/nommu_k210_defconfig
View File

@ -21,7 +21,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_IO_URING is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_KALLSYMS is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLUB=y

2
arch/riscv/configs/nommu_k210_sdcard_defconfig
View File

@ -13,7 +13,7 @@ CONFIG_CC_OPTIMIZE_FOR_SIZE=y
# CONFIG_IO_URING is not set
# CONFIG_ADVISE_SYSCALLS is not set
# CONFIG_KALLSYMS is not set
CONFIG_EMBEDDED=y
CONFIG_EXPERT=y
# CONFIG_VM_EVENT_COUNTERS is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SLUB=y

4
arch/riscv/kernel/elf_kexec.c
View File

@ -260,7 +260,7 @@ static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
cmdline = modified_cmdline;
}
#ifdef CONFIG_ARCH_HAS_KEXEC_PURGATORY
#ifdef CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY
/* Add purgatory to the image */
kbuf.top_down = true;
kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
@ -274,7 +274,7 @@ static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
sizeof(kernel_start), 0);
if (ret)
pr_err("Error update purgatory ret=%d\n", ret);
#endif /* CONFIG_ARCH_HAS_KEXEC_PURGATORY */
#endif /* CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY */
/* Add the initrd to the image */
if (initrd != NULL) {

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