# git rev-parse -q --verify 96485e4462604744d66bf4301557d996d80b85eb^{commit}
96485e4462604744d66bf4301557d996d80b85eb
already have revision, skipping fetch
# git checkout -q -f -B kisskb 96485e4462604744d66bf4301557d996d80b85eb
# git clean -qxdf
# < git log -1
# commit 96485e4462604744d66bf4301557d996d80b85eb
# Merge: f56e65dff6ad 1322181170bb
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Thu Oct 22 10:31:08 2020 -0700
# 
#     Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
#     
#     Pull ext4 updates from Ted Ts'o:
#      "The siginificant new ext4 feature this time around is Harshad's new
#       fast_commit mode.
#     
#       In addition, thanks to Mauricio for fixing a race where mmap'ed pages
#       that are being changed in parallel with a data=journal transaction
#       commit could result in bad checksums in the failure that could cause
#       journal replays to fail.
#     
#       Also notable is Ritesh's buffered write optimization which can result
#       in significant improvements on parallel write workloads. (The kernel
#       test robot reported a 330.6% improvement on fio.write_iops on a 96
#       core system using DAX)
#     
#       Besides that, we have the usual miscellaneous cleanups and bug fixes"
#     
#     Link: https://lore.kernel.org/r/20200925071217.GO28663@shao2-debian
#     
#     * tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (46 commits)
#       ext4: fix invalid inode checksum
#       ext4: add fast commit stats in procfs
#       ext4: add a mount opt to forcefully turn fast commits on
#       ext4: fast commit recovery path
#       jbd2: fast commit recovery path
#       ext4: main fast-commit commit path
#       jbd2: add fast commit machinery
#       ext4 / jbd2: add fast commit initialization
#       ext4: add fast_commit feature and handling for extended mount options
#       doc: update ext4 and journalling docs to include fast commit feature
#       ext4: Detect already used quota file early
#       jbd2: avoid transaction reuse after reformatting
#       ext4: use the normal helper to get the actual inode
#       ext4: fix bs < ps issue reported with dioread_nolock mount opt
#       ext4: data=journal: write-protect pages on j_submit_inode_data_buffers()
#       ext4: data=journal: fixes for ext4_page_mkwrite()
#       jbd2, ext4, ocfs2: introduce/use journal callbacks j_submit|finish_inode_data_buffers()
#       jbd2: introduce/export functions jbd2_journal_submit|finish_inode_data_buffers()
#       ext4: introduce ext4_sb_bread_unmovable() to replace sb_bread_unmovable()
#       ext4: use ext4_sb_bread() instead of sb_bread()
#       ...
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-ld --version
# < git log --format=%s --max-count=1 96485e4462604744d66bf4301557d996d80b85eb
# < make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  allnoconfig
# make -s -j 120 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/x86_64-linux/bin/x86_64-linux-  
Completed OK
# rm -rf /kisskb/build/linus_x86_64-allnoconfig_x86_64-gcc4.9
# Build took: 0:00:13.058159