# git rev-parse -q --verify 7611de9cd7806a9c41426d12b98cf8867263a05f^{commit}
7611de9cd7806a9c41426d12b98cf8867263a05f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7611de9cd7806a9c41426d12b98cf8867263a05f
# git clean -qxdf
# < git log -1
# commit 7611de9cd7806a9c41426d12b98cf8867263a05f
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Thu Sep 1 21:03:34 2022 +1000
# 
#     powerpc/64s: add pte_needs_flush and huge_pmd_needs_flush
#     
#     Allow PTE changes to avoid flushing the TLB when access permissions are
#     being relaxed, the dirty bit is being set, and the accessed bit is being
#     changed.
#     
#     Relaxing access permissions and setting dirty and accessed bits do not
#     require a flush because the MMU will re-load the PTE and notice the
#     updates (it may also cause a spurious fault).
#     
#     Clearing the accessed bit does not require a flush because of the
#     imprecise PTE accessed bit accounting that is already performed, as
#     documented in ptep_clear_flush_young().
#     
#     This reduces TLB flushing for some mprotect(2) calls.
#     
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Link: https://lore.kernel.org/r/20220901110334.1618913-1-npiggin@gmail.com
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 7611de9cd7806a9c41426d12b98cf8867263a05f
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# Added to kconfig CONFIG_SMP=y
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4364:warning: override: reassigning to symbol SMP
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-next_pmac32_defconfig+SMP_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
Completed OK
# rm -rf /kisskb/build/powerpc-next_pmac32_defconfig+SMP_powerpc-gcc5
# Build took: 0:02:22.259694