[GIT PULL] non-MM updates for 6.5-rc1

From: Andrew Morton
Date: Mon Jun 26 2023 - 11:51:10 EST

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Linus, please merge these non-MM updates for 6.5-rc1, thanks.

The following changes since commit 7877cb91f1081754a1487c144d85dc0d2e2e7fc4:

Linux 6.4-rc4 (2023-05-28 07:49:00 -0400)

are available in the Git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm tags/mm-nonmm-stable-2023-06-24-19-23

for you to fetch changes up to 4afc9a402aa3890885747b396c1adcd45f127665:

kernel/time/posix-stubs.c: remove duplicated include (2023-06-23 17:04:05 -0700)

----------------------------------------------------------------
- Arnd Bergmann has fixed a bunch of -Wmissing-prototypes in
top-level directories.

- Douglas Anderson has added a new "buddy" mode to the hardlockup
detector. It permits the detector to work on architectures which
cannot provide the required interrupts, by having CPUs periodically
perform checks on other CPUs.

- Zhen Lei has enhanced kexec's ability to support two crash regions.

- Petr Mladek has done a lot of cleanup on the hard lockup detector's
Kconfig entries.

- And the usual bunch of singleton patches in various places.

----------------------------------------------------------------
Alexey Dobriyan (2):
add intptr_t
include/linux/math.h: fix mult_frac() multiple argument evaluation bug

Angus Chen (1):
init: add bdev fs printk if mount_block_root failed

Arnd Bergmann (15):
mm: percpu: unhide pcpu_embed_first_chunk prototype
mm: page_poison: always declare __kernel_map_pages() function
mm: sparse: mark populate_section_memmap() static
lib: devmem_is_allowed: include linux/io.h
locking: add lockevent_read() prototype
panic: hide unused global functions
panic: make function declarations visible
kunit: include debugfs header file
init: consolidate prototypes in linux/init.h
init: move cifs_root_data() prototype into linux/mount.h
thread_info: move function declarations to linux/thread_info.h
time_namespace: always provide arch_get_vdso_data() prototype for vdso
kcov: add prototypes for helper functions
decompressor: provide missing prototypes
syscalls: add sys_ni_posix_timers prototype

Azeem Shaikh (1):
procfs: replace all non-returning strlcpy with strscpy

Ben Dooks (1):
devres: show which resource was invalid in __devm_ioremap_resource()

Christoph Hellwig (1):
squashfs: don't include buffer_head.h

Colin Ian King (2):
scripts/spelling.txt: add more spellings to spelling.txt
ocfs2: remove redundant assignment to variable bit_off

Douglas Anderson (23):
watchdog/perf: define dummy watchdog_update_hrtimer_threshold() on correct config
watchdog/perf: more properly prevent false positives with turbo modes
watchdog/hardlockup: add comments to touch_nmi_watchdog()
watchdog/perf: rename watchdog_hld.c to watchdog_perf.c
watchdog/hardlockup: move perf hardlockup checking/panic to common watchdog.c
watchdog/hardlockup: style changes to watchdog_hardlockup_check() / is_hardlockup()
watchdog/hardlockup: add a "cpu" param to watchdog_hardlockup_check()
watchdog/hardlockup: move perf hardlockup watchdog petting to watchdog.c
watchdog/hardlockup: rename some "NMI watchdog" constants/function
watchdog/hardlockup: have the perf hardlockup use __weak functions more cleanly
watchdog/hardlockup: detect hard lockups using secondary (buddy) CPUs
watchdog/perf: add a weak function for an arch to detect if perf can use NMIs
arm64: enable perf events based hard lockup detector
watchdog/hardlockup: keep kernel.nmi_watchdog sysctl as 0444 if probe fails
watchdog/hardlockup: HAVE_NMI_WATCHDOG must implement watchdog_hardlockup_probe()
watchdog/hardlockup: don't use raw_cpu_ptr() in watchdog_hardlockup_kick()
watchdog/hardlockup: in watchdog_hardlockup_check() use cpumask_copy()
watchdog/hardlockup: remove softlockup comment in touch_nmi_watchdog()
watchdog/buddy: cleanup how watchdog_buddy_check_hardlockup() is called
watchdog/buddy: don't copy the cpumask in watchdog_next_cpu()
watchdog/buddy: simplify the dependency for HARDLOCKUP_DETECTOR_PREFER_BUDDY
watchdog/hardlockup: move SMP barriers from common code to buddy code
powerpc: move arch_trigger_cpumask_backtrace from nmi.h to irq.h

Haifeng Xu (1):
fork: optimize memcg_charge_kernel_stack() a bit

Joseph Qi (2):
ocfs2: correct return value of ocfs2_local_free_info()
ocfs2: cleanup trace events

Kees Cook (1):
checkpatch: check for 0-length and 1-element arrays

Lecopzer Chen (4):
watchdog: remove WATCHDOG_DEFAULT
watchdog/hardlockup: change watchdog_nmi_enable() to void
watchdog/perf: adapt the watchdog_perf interface for async model
arm64: add hw_nmi_get_sample_period for preparation of lockup detector

Lukas Bulwahn (1):
watchdog/hardlockup: fix typo in config HARDLOCKUP_DETECTOR_PREFER_BUDDY

Petr Mladek (6):
watchdog/hardlockup: sort hardlockup detector related config values a logical way
watchdog/hardlockup: make the config checks more straightforward
watchdog/hardlockup: declare arch_touch_nmi_watchdog() only in linux/nmi.h
watchdog/hardlockup: make HAVE_NMI_WATCHDOG sparc64-specific
watchdog/sparc64: define HARDLOCKUP_DETECTOR_SPARC64
watchdog/hardlockup: define HARDLOCKUP_DETECTOR_ARCH

Pingfan Liu (1):
watchdog/perf: ensure CPU-bound context when creating hardlockup detector event

Prathu Baronia (1):
kthread: fix spelling typo and grammar in comments

Simon Horman (1):
kexec: avoid calculating array size twice

Vincent Whitchurch (1):
squashfs: cache partial compressed blocks

Yang Li (1):
kernel/time/posix-stubs.c: remove duplicated include

Zhen Lei (6):
kexec: fix a memory leak in crash_shrink_memory()
kexec: delete a useless check in crash_shrink_memory()
kexec: clear crashk_res if all its memory has been released
kexec: improve the readability of crash_shrink_memory()
kexec: add helper __crash_shrink_memory()
kexec: enable kexec_crash_size to support two crash kernel regions

arch/Kconfig | 16 +-
arch/alpha/kernel/osf_sys.c | 2 -
arch/arm/include/asm/irq.h | 1 -
arch/arm64/Kconfig | 3 +
arch/arm64/include/asm/thread_info.h | 4 -
arch/arm64/kernel/Makefile | 1 +
arch/arm64/kernel/watchdog_hld.c | 36 +++
arch/microblaze/include/asm/setup.h | 2 -
arch/mips/include/asm/fw/cfe/cfe_api.h | 3 -
arch/mips/include/asm/irq.h | 1 -
arch/parisc/kernel/smp.c | 1 -
arch/powerpc/Kconfig | 5 +-
arch/powerpc/include/asm/irq.h | 7 +-
arch/powerpc/include/asm/nmi.h | 12 +-
arch/powerpc/kernel/watchdog.c | 12 +-
arch/powerpc/platforms/pseries/mobility.c | 4 +-
arch/riscv/include/asm/irq.h | 2 -
arch/riscv/include/asm/timex.h | 2 -
arch/s390/include/asm/thread_info.h | 3 -
arch/s390/kernel/entry.h | 2 -
arch/sh/include/asm/irq.h | 1 -
arch/sh/include/asm/rtc.h | 2 -
arch/sh/include/asm/thread_info.h | 3 -
arch/sparc/Kconfig | 2 +-
arch/sparc/Kconfig.debug | 14 ++
arch/sparc/include/asm/irq_32.h | 1 -
arch/sparc/include/asm/irq_64.h | 1 -
arch/sparc/include/asm/nmi.h | 1 -
arch/sparc/include/asm/timer_64.h | 1 -
arch/sparc/kernel/kernel.h | 1 -
arch/sparc/kernel/nmi.c | 15 +-
arch/x86/include/asm/irq.h | 2 -
arch/x86/include/asm/mem_encrypt.h | 3 -
arch/x86/include/asm/thread_info.h | 3 -
arch/x86/include/asm/time.h | 1 -
arch/x86/include/asm/tsc.h | 1 -
drivers/perf/arm_pmu.c | 5 +
drivers/perf/arm_pmuv3.c | 12 +-
fs/ocfs2/localalloc.c | 2 +-
fs/ocfs2/ocfs2_trace.h | 2 -
fs/ocfs2/quota_local.c | 9 +-
fs/proc/kcore.c | 2 +-
fs/squashfs/block.c | 118 +++++++++-
fs/squashfs/decompressor.c | 1 -
fs/squashfs/decompressor_multi_percpu.c | 1 -
fs/squashfs/squashfs_fs_sb.h | 1 +
fs/squashfs/super.c | 17 ++
include/asm-generic/bug.h | 5 +-
include/linux/acpi.h | 3 +-
include/linux/delay.h | 1 +
include/linux/init.h | 20 ++
include/linux/kcov.h | 17 ++
include/linux/math.h | 22 +-
include/linux/mm.h | 3 +-
include/linux/mount.h | 2 +
include/linux/nmi.h | 83 ++++---
include/linux/panic.h | 3 +
include/linux/percpu.h | 2 -
include/linux/perf/arm_pmu.h | 2 +
include/linux/syscalls.h | 1 +
include/linux/thread_info.h | 5 +
include/linux/time_namespace.h | 3 +-
include/linux/types.h | 1 +
init/do_mounts.c | 15 +-
init/main.c | 18 --
kernel/Makefile | 3 +-
kernel/fork.c | 10 +-
kernel/kcov.c | 7 +-
kernel/kexec_core.c | 93 +++++---
kernel/kexec_file.c | 7 +-
kernel/kthread.c | 4 +-
kernel/locking/lock_events.h | 4 +
kernel/panic.c | 3 +-
kernel/watchdog.c | 356 +++++++++++++++++++++--------
kernel/watchdog_buddy.c | 113 +++++++++
kernel/{watchdog_hld.c => watchdog_perf.c} | 105 +++------
lib/Kconfig.debug | 84 ++++++-
lib/decompress_inflate.c | 2 +-
lib/decompress_unxz.c | 2 +
lib/decompress_unzstd.c | 2 +
lib/devmem_is_allowed.c | 1 +
lib/devres.c | 2 +-
lib/kunit/debugfs.c | 1 +
lib/zstd/common/zstd_deps.h | 18 --
mm/sparse.c | 2 +-
scripts/checkpatch.pl | 10 +
scripts/spelling.txt | 22 ++
87 files changed, 970 insertions(+), 428 deletions(-)
create mode 100644 arch/arm64/kernel/watchdog_hld.c
create mode 100644 kernel/watchdog_buddy.c
rename kernel/{watchdog_hld.c => watchdog_perf.c} (72%)

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Previous message: Andrew Morton: "[GIT PULL] MM updates for 6.5-rc1"
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