# git rev-parse -q --verify 0214f46b3a0383d6e33c297e7706216b6a550e4b^{commit}
0214f46b3a0383d6e33c297e7706216b6a550e4b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0214f46b3a0383d6e33c297e7706216b6a550e4b
# git clean -qxdf
# < git log -1
# commit 0214f46b3a0383d6e33c297e7706216b6a550e4b
# Merge: 40fafdc 84fe4cc
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Aug 21 13:47:29 2018 -0700
# 
#     Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
#     
#     Pull core signal handling updates from Eric Biederman:
#      "It was observed that a periodic timer in combination with a
#       sufficiently expensive fork could prevent fork from every completing.
#       This contains the changes to remove the need for that restart.
#     
#       This set of changes is split into several parts:
#     
#        - The first part makes PIDTYPE_TGID a proper pid type instead
#          something only for very special cases. The part starts using
#          PIDTYPE_TGID enough so that in __send_signal where signals are
#          actually delivered we know if the signal is being sent to a a group
#          of processes or just a single process.
#     
#        - With that prep work out of the way the logic in fork is modified so
#          that fork logically makes signals received while it is running
#          appear to be received after the fork completes"
#     
#     * 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (22 commits)
#       signal: Don't send signals to tasks that don't exist
#       signal: Don't restart fork when signals come in.
#       fork: Have new threads join on-going signal group stops
#       fork: Skip setting TIF_SIGPENDING in ptrace_init_task
#       signal: Add calculate_sigpending()
#       fork: Unconditionally exit if a fatal signal is pending
#       fork: Move and describe why the code examines PIDNS_ADDING
#       signal: Push pid type down into complete_signal.
#       signal: Push pid type down into __send_signal
#       signal: Push pid type down into send_signal
#       signal: Pass pid type into do_send_sig_info
#       signal: Pass pid type into send_sigio_to_task & send_sigurg_to_task
#       signal: Pass pid type into group_send_sig_info
#       signal: Pass pid and pid type into send_sigqueue
#       posix-timers: Noralize good_sigevent
#       signal: Use PIDTYPE_TGID to clearly store where file signals will be sent
#       pid: Implement PIDTYPE_TGID
#       pids: Move the pgrp and session pid pointers from task_struct to signal_struct
#       kvm: Don't open code task_pid in kvm_vcpu_ioctl
#       pids: Compute task_tgid using signal->leader_pid
#       ...
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < git log --format=%s --max-count=1 0214f46b3a0383d6e33c297e7706216b6a550e4b
# < make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  allnoconfig
drivers/staging/mt7621-dts/Kconfig:4:warning: 'BUILTIN_DTB' has wrong type. 'select' only accept arguments of bool and tristate type
# make -s -j 10 ARCH=xtensa O=/kisskb/build/linus_xtensa-allnoconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
Completed OK
# rm -rf /kisskb/build/linus_xtensa-allnoconfig_xtensa
# Build took: 0:00:23.901668