# git rev-parse -q --verify 7d900724913cb293620a05c5a3134710db95d0d9^{commit}
7d900724913cb293620a05c5a3134710db95d0d9
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7d900724913cb293620a05c5a3134710db95d0d9
# git clean -qxdf
# < git log -1
# commit 7d900724913cb293620a05c5a3134710db95d0d9
# Merge: add6b92660b3 53b74fa990bf
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Sun Apr 11 11:53:36 2021 -0700
# 
#     Merge tag 'for-5.12-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux
#     
#     Pull btrfs fix from David Sterba:
#      "One more patch that we'd like to get to 5.12 before release.
#     
#       It's changing where and how the superblock is stored in the zoned
#       mode. It is an on-disk format change but so far there are no
#       implications for users as the proper mkfs support hasn't been merged
#       and is waiting for the kernel side to settle.
#     
#       Until now, the superblocks were derived from the zone index, but zone
#       size can differ per device. This is changed to be based on fixed
#       offset values, to make it independent of the device zone size.
#     
#       The work on that got a bit delayed, we discussed the exact locations
#       to support potential device sizes and usecases. (Partially delayed
#       also due to my vacation.) Having that in the same release where the
#       zoned mode is declared usable is highly desired, there are userspace
#       projects that need to be updated to recognize the feature. Pushing
#       that to the next release would make things harder to test"
#     
#     * tag 'for-5.12-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
#       btrfs: zoned: move superblock logging zone location
# < /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 7d900724913cb293620a05c5a3134710db95d0d9
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_mxs_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-  mxs_defconfig
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_mxs_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 48 ARCH=arm O=/kisskb/build/linus_mxs_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 48 ARCH=arm O=/kisskb/build/linus_mxs_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_mxs_defconfig_arm-gcc4.9
# Build took: 0:01:43.442996