# git rev-parse -q --verify 701c09c988bd60d950d49c48993b6c06efbfba7f^{commit}
701c09c988bd60d950d49c48993b6c06efbfba7f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 701c09c988bd60d950d49c48993b6c06efbfba7f
# git clean -qxdf
# < git log -1
# commit 701c09c988bd60d950d49c48993b6c06efbfba7f
# Merge: 002322402daf c1d6abdac46c
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Mar 25 15:38:22 2021 -0700
# 
#     Merge tag 'for-5.12-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fixes from David Sterba:
#      "Fixes for issues that have some user visibility and are simple enough
#       for this time of development cycle:
#     
#        - a few fixes for rescue= mount option, adding more checks for
#          missing trees
#     
#        - fix sleeping in atomic context on qgroup deletion
#     
#        - fix subvolume deletion on mount
#     
#        - fix build with M= syntax
#     
#        - fix checksum mismatch error message for direct io"
#     
#     * tag 'for-5.12-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: fix check_data_csum() error message for direct I/O
#       btrfs: fix sleep while in non-sleep context during qgroup removal
#       btrfs: fix subvolume/snapshot deletion not triggered on mount
#       btrfs: fix build when using M=fs/btrfs
#       btrfs: do not initialize dev replace for bad dev root
#       btrfs: initialize device::fs_info always
#       btrfs: do not initialize dev stats if we have no dev_root
#       btrfs: zoned: remove outdated WARN_ON in direct IO
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 701c09c988bd60d950d49c48993b6c06efbfba7f
# < make -s -j 10 ARCH=arm O=/kisskb/build/linus_ep93xx_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  ep93xx_defconfig
# < make -s -j 10 ARCH=arm O=/kisskb/build/linus_ep93xx_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  help
# make -s -j 10 ARCH=arm O=/kisskb/build/linus_ep93xx_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  olddefconfig
# make -s -j 10 ARCH=arm O=/kisskb/build/linus_ep93xx_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  
Completed OK
# rm -rf /kisskb/build/linus_ep93xx_defconfig_arm-gcc4.9
# Build took: 0:01:06.753234