# git rev-parse -q --verify 16b3d0cf5bad844daaf436ad2e9061de0fe36e5c^{commit}
16b3d0cf5bad844daaf436ad2e9061de0fe36e5c
already have revision, skipping fetch
# git checkout -q -f -B kisskb 16b3d0cf5bad844daaf436ad2e9061de0fe36e5c
# git clean -qxdf
# < git log -1
# commit 16b3d0cf5bad844daaf436ad2e9061de0fe36e5c
# Merge: 42dec9a936e7 2ea46c6fc945
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Apr 28 13:33:57 2021 -0700
# 
#     Merge tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull scheduler updates from Ingo Molnar:
#     
#      - Clean up SCHED_DEBUG: move the decades old mess of sysctl, procfs and
#        debugfs interfaces to a unified debugfs interface.
#     
#      - Signals: Allow caching one sigqueue object per task, to improve
#        performance & latencies.
#     
#      - Improve newidle_balance() irq-off latencies on systems with a large
#        number of CPU cgroups.
#     
#      - Improve energy-aware scheduling
#     
#      - Improve the PELT metrics for certain workloads
#     
#      - Reintroduce select_idle_smt() to improve load-balancing locality -
#        but without the previous regressions
#     
#      - Add 'scheduler latency debugging': warn after long periods of pending
#        need_resched. This is an opt-in feature that requires the enabling of
#        the LATENCY_WARN scheduler feature, or the use of the
#        resched_latency_warn_ms=xx boot parameter.
#     
#      - CPU hotplug fixes for HP-rollback, and for the 'fail' interface. Fix
#        remaining balance_push() vs. hotplug holes/races
#     
#      - PSI fixes, plus allow /proc/pressure/ files to be written by
#        CAP_SYS_RESOURCE tasks as well
#     
#      - Fix/improve various load-balancing corner cases vs. capacity margins
#     
#      - Fix sched topology on systems with NUMA diameter of 3 or above
#     
#      - Fix PF_KTHREAD vs to_kthread() race
#     
#      - Minor rseq optimizations
#     
#      - Misc cleanups, optimizations, fixes and smaller updates
#     
#     * tag 'sched-core-2021-04-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (61 commits)
#       cpumask/hotplug: Fix cpu_dying() state tracking
#       kthread: Fix PF_KTHREAD vs to_kthread() race
#       sched/debug: Fix cgroup_path[] serialization
#       sched,psi: Handle potential task count underflow bugs more gracefully
#       sched: Warn on long periods of pending need_resched
#       sched/fair: Move update_nohz_stats() to the CONFIG_NO_HZ_COMMON block to simplify the code & fix an unused function warning
#       sched/debug: Rename the sched_debug parameter to sched_verbose
#       sched,fair: Alternative sched_slice()
#       sched: Move /proc/sched_debug to debugfs
#       sched,debug: Convert sysctl sched_domains to debugfs
#       debugfs: Implement debugfs_create_str()
#       sched,preempt: Move preempt_dynamic to debug.c
#       sched: Move SCHED_DEBUG sysctl to debugfs
#       sched: Don't make LATENCYTOP select SCHED_DEBUG
#       sched: Remove sched_schedstats sysctl out from under SCHED_DEBUG
#       sched/numa: Allow runtime enabling/disabling of NUMA balance without SCHED_DEBUG
#       sched: Use cpu_dying() to fix balance_push vs hotplug-rollback
#       cpumask: Introduce DYING mask
#       cpumask: Make cpu_{online,possible,present,active}() inline
#       rseq: Optimise rseq_get_rseq_cs() and clear_rseq_cs()
#       ...
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 16b3d0cf5bad844daaf436ad2e9061de0fe36e5c
# < make -s -j 24 ARCH=arm O=/kisskb/build/linus_arm-allnoconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  allnoconfig
# < make -s -j 24 ARCH=arm O=/kisskb/build/linus_arm-allnoconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  help
# make -s -j 24 ARCH=arm O=/kisskb/build/linus_arm-allnoconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  olddefconfig
# make -s -j 24 ARCH=arm O=/kisskb/build/linus_arm-allnoconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
Completed OK
# rm -rf /kisskb/build/linus_arm-allnoconfig_arm-gcc4.9
# Build took: 0:00:19.422291