# git rev-parse -q --verify cfb61b5e3e09f8b49bc4d685429df75f45127adc^{commit}
cfb61b5e3e09f8b49bc4d685429df75f45127adc
already have revision, skipping fetch
# git checkout -q -f -B kisskb cfb61b5e3e09f8b49bc4d685429df75f45127adc
# git clean -qxdf
# < git log -1
# commit cfb61b5e3e09f8b49bc4d685429df75f45127adc
# Author: David S. Miller <davem@davemloft.net>
# Date:   Thu Mar 15 14:18:00 2018 -0700
# 
#     sparc64: Fix regression in pmdp_invalidate().
#     
#     pmdp_invalidate() was changed to update the pmd atomically
#     (to not lose dirty/access bits) and return the original pmd
#     value.
#     
#     However, in doing so, we lost a lot of the essential work that
#     set_pmd_at() does, namely to update hugepage mapping counts and
#     queuing up the batched TLB flush entry.
#     
#     Thus we were not flushing entries out of the TLB when making
#     such PMD changes.
#     
#     Fix this by abstracting the accounting work of set_pmd_at() out into a
#     separate function, and call it from pmdp_establish().
#     
#     Fixes: a8e654f01cb7 ("sparc64: update pmdp_invalidate() to return old pmd value")
#     Signed-off-by: David S. Miller <davem@davemloft.net>
# < /opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-gcc --version
# < git log --format=%s --max-count=1 cfb61b5e3e09f8b49bc4d685429df75f45127adc
# < make -s -j 48 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  defconfig
# make -s -j 48 ARCH=xtensa O=/kisskb/build/linus_xtensa-defconfig_xtensa CROSS_COMPILE=/opt/cross/kisskb/br-xtensa-full-2016.08-613-ge98b4dd/bin/xtensa-linux-  
CONFIG_CC_STACKPROTECTOR_AUTO: Compiler does not support any known stack-protector
Completed OK
# rm -rf /kisskb/build/linus_xtensa-defconfig_xtensa
# Build took: 0:00:23.560022