# git rev-parse -q --verify 706a1ea65e6faaf853427a0e931f59d604dd45e3^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 706a1ea65e6faaf853427a0e931f59d604dd45e3^{commit}
706a1ea65e6faaf853427a0e931f59d604dd45e3
# git checkout -q -f -B kisskb 706a1ea65e6faaf853427a0e931f59d604dd45e3
# git clean -qxdf
# < git log -1
# commit 706a1ea65e6faaf853427a0e931f59d604dd45e3
# Merge: d40acad 48a8b97
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Aug 23 14:55:01 2018 -0700
# 
#     Merge branch 'tlb-fixes'
#     
#     Merge fixes for missing TLB shootdowns.
#     
#     This fixes a couple of cases that involved us possibly freeing page
#     table structures before the required TLB shootdown had been done.
#     
#     There are a few cleanup patches to make the code easier to follow, and
#     to avoid some of the more problematic cases entirely when not necessary.
#     
#     To make this easier for backports, it undoes the recent lazy TLB
#     patches, because the cleanups and fixes are more important, and Rik is
#     ok with re-doing them later when things have calmed down.
#     
#     The missing TLB flush was only delayed, and the wrong ordering only
#     happened under memory pressure (and in theory under a couple of other
#     fairly theoretical situations), so this may have been all very unlikely
#     to have hit people in practice.
#     
#     But getting the TLB shootdown wrong is _so_ hard to debug and see that I
#     consider this a crticial fix.
#     
#     Many thanks to Jann Horn for having debugged this.
#     
#     * tlb-fixes:
#       x86/mm: Only use tlb_remove_table() for paravirt
#       mm: mmu_notifier fix for tlb_end_vma
#       mm/tlb, x86/mm: Support invalidating TLB caches for RCU_TABLE_FREE
#       mm/tlb: Remove tlb_remove_table() non-concurrent condition
#       mm: move tlb_table_flush to tlb_flush_mmu_free
#       x86/mm/tlb: Revert the recent lazy TLB patches
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < git log --format=%s --max-count=1 706a1ea65e6faaf853427a0e931f59d604dd45e3
# < make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  randconfig
KCONFIG_SEED=0x368DBF20
# Added to kconfig CONFIG_STANDALONE=y
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# Added to kconfig CONFIG_CC_STACKPROTECTOR_STRONG=n
# Added to kconfig CONFIG_GCC_PLUGINS=n
# Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n
# Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n
# Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n
# yes \n | make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  oldconfig
yes: standard output: Broken pipe
yes: write error
# make -s -j 8 ARCH=x86_64 O=/kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/x86_64-linux/bin/x86_64-linux-  
/kisskb/src/fs/hfsplus/xattr.c: In function 'copy_name':
/kisskb/src/fs/hfsplus/xattr.c:410:3: warning: 'strncpy' output truncated before terminating nul copying 4 bytes from a string of the same length [-Wstringop-truncation]
   strncpy(buffer, XATTR_MAC_OSX_PREFIX, XATTR_MAC_OSX_PREFIX_LEN);
   ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/lib/ubsan.c:432:1: warning: ignoring attribute 'noreturn' in declaration of a built-in function '__ubsan_handle_builtin_unreachable' because it conflicts with attribute 'const' [-Wattributes]
 {
 ^
<built-in>: note: previous declaration here
Completed OK
# rm -rf /kisskb/build/linus-rand_x86_64-randconfig_x86_64-gcc8
# Build took: 0:03:57.500067