# git rev-parse -q --verify 9269d27e519ae9a89be8d288f59d1ec573b0c686^{commit}
9269d27e519ae9a89be8d288f59d1ec573b0c686
already have revision, skipping fetch
# git checkout -q -f -B kisskb 9269d27e519ae9a89be8d288f59d1ec573b0c686
# git clean -qxdf
# < git log -1
# commit 9269d27e519ae9a89be8d288f59d1ec573b0c686
# Merge: 54a728dc5e4f 09fe880ed7a1
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Jun 28 12:22:06 2021 -0700
# 
#     Merge tag 'timers-nohz-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull timers/nohz updates from Ingo Molnar:
#     
#      - Micro-optimize tick_nohz_full_cpu()
#     
#      - Optimize idle exit tick restarts to be less eager
#     
#      - Optimize tick_nohz_dep_set_task() to only wake up a single CPU.
#        This reduces IPIs and interruptions on nohz_full CPUs.
#     
#      - Optimize tick_nohz_dep_set_signal() in a similar fashion.
#     
#      - Skip IPIs in tick_nohz_kick_task() when trying to kick a
#        non-running task.
#     
#      - Micro-optimize tick_nohz_task_switch() IRQ flags handling to
#        reduce context switching costs.
#     
#      - Misc cleanups and fixes
#     
#     * tag 'timers-nohz-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       MAINTAINERS: Add myself as context tracking maintainer
#       tick/nohz: Call tick_nohz_task_switch() with interrupts disabled
#       tick/nohz: Kick only _queued_ task whose tick dependency is updated
#       tick/nohz: Change signal tick dependency to wake up CPUs of member tasks
#       tick/nohz: Only wake up a single target cpu when kicking a task
#       tick/nohz: Update nohz_full Kconfig help
#       tick/nohz: Update idle_exittime on actual idle exit
#       tick/nohz: Remove superflous check for CONFIG_VIRT_CPU_ACCOUNTING_NATIVE
#       tick/nohz: Conditionally restart tick on idle exit
#       tick/nohz: Evaluate the CPU expression after the static key
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 9269d27e519ae9a89be8d288f59d1ec573b0c686
# < make -s -j 120 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  randconfig
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 120 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 120 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
.config:6454:warning: override: reassigning to symbol PREVENT_FIRMWARE_BUILD
# make -s -j 120 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8
# Build took: 0:02:16.059692