# git rev-parse -q --verify 7f46774c6480174eb869a3c15167eafac467a6af^{commit}
7f46774c6480174eb869a3c15167eafac467a6af
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7f46774c6480174eb869a3c15167eafac467a6af
# git clean -qxdf
# < git log -1
# commit 7f46774c6480174eb869a3c15167eafac467a6af
# Merge: c7084edc3f6d 5b56d996dd50
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Apr 5 06:09:53 2019 -1000
# 
#     Merge tag 'mm-compaction-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux
#     
#     Pull mm/compaction fixes from Mel Gorman:
#      "The merge window for 5.1 introduced a number of compaction-related
#       patches. with intermittent reports of corruption and functional
#       issues. The bugs are due to sloopy checking of zone boundaries and a
#       corner case where invalid indexes are used to access the free lists.
#     
#       Reports are not common but at least two users and 0-day have tripped
#       over them. There is a chance that one of the syzbot reports are
#       related but it has not been confirmed properly.
#     
#       The normal submission path is with Andrew but there have been some
#       delays and I consider them urgent enough that they should be picked up
#       before RC4 to avoid duplicate reports.
#     
#       All of these have been successfully tested on older RC windows. This
#       will make this branch look like a rebase but in fact, they've simply
#       been lifted again from Andrew's tree and placed on a fresh branch.
#       I've no reason to believe that this has invalidated the testing given
#       the lack of change in compaction and the nature of the fixes"
#     
#     * tag 'mm-compaction-5.1-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux:
#       mm/compaction.c: abort search if isolation fails
#       mm/compaction.c: correct zone boundary handling when resetting pageblock skip hints
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 7f46774c6480174eb869a3c15167eafac467a6af
# < make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 defconfig
# make -s -j 48 ARCH=um O=/kisskb/build/linus_um-defconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 
/kisskb/src/arch/um/kernel/skas/uaccess.c: In function 'do_op_one_page':
/kisskb/src/arch/um/kernel/skas/uaccess.c:62:10: warning: unused variable 'buf' [-Wunused-variable]
  jmp_buf buf;
          ^
/kisskb/src/arch/um/os-Linux/umid.c: In function 'is_umdir_used':
/kisskb/src/arch/um/os-Linux/umid.c:138:2: warning: ISO C90 forbids variable length array 'file' [-Wvla]
  char file[strlen(uml_dir) + UMID_LEN + sizeof("/pid\0")];
  ^
/kisskb/src/arch/um/os-Linux/umid.c: In function 'create_pid_file':
/kisskb/src/arch/um/os-Linux/umid.c:213:2: warning: ISO C90 forbids variable length array 'file' [-Wvla]
  char file[strlen(uml_dir) + UMID_LEN + sizeof("/pid\0")];
  ^
/kisskb/src/arch/um/os-Linux/umid.c: In function 'remove_umid_dir':
/kisskb/src/arch/um/os-Linux/umid.c:388:2: warning: ISO C90 forbids variable length array 'dir' [-Wvla]
  char dir[strlen(uml_dir) + UMID_LEN + 1], err;
  ^
/kisskb/src/mm/mprotect.c: In function 'change_pte_range':
/kisskb/src/mm/mprotect.c:42:20: warning: unused variable 'mm' [-Wunused-variable]
  struct mm_struct *mm = vma->vm_mm;
                    ^
  LINK linux
Completed OK
# rm -rf /kisskb/build/linus_um-defconfig_um-x86_64
# Build took: 0:00:37.060262