# git rev-parse -q --verify 0ee7c3e25d8c28845fceb4dd1c3cb5f50b9c45a9^{commit}
# git fetch -q -n -f git://fs.ozlabs.ibm.com/kernel/linus master
# git rev-parse -q --verify 0ee7c3e25d8c28845fceb4dd1c3cb5f50b9c45a9^{commit}
0ee7c3e25d8c28845fceb4dd1c3cb5f50b9c45a9
# git checkout -q -f -B kisskb 0ee7c3e25d8c28845fceb4dd1c3cb5f50b9c45a9
# git clean -qxdf
# < git log -1
# commit 0ee7c3e25d8c28845fceb4dd1c3cb5f50b9c45a9
# Merge: 916d636e0a2d 03b8df8d43ec
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Tue Aug 31 11:13:35 2021 -0700
# 
#     Merge tag 'iomap-5.15-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
#     
#     Pull iomap updates from Darrick Wong:
#      "The most notable externally visible change for this cycle is the
#       addition of support for reads to inline tail fragments of files, which
#       was requested by the erofs developers; and a correction for a kernel
#       memory corruption bug if the sysadmin tries to activate a swapfile
#       with more pages than the swapfile header suggests.
#     
#       We also now report writeback completion errors to the file mapping
#       correctly, instead of munging all errors into EIO.
#     
#       Internally, the bulk of the changes are Christoph's patchset to reduce
#       the indirect function call count by a third to a half by converting
#       iomap iteration from a loop pattern to a generator/consumer pattern.
#       As an added bonus, fsdax no longer open-codes iomap apply loops.
#     
#       Summary:
#     
#        - Simplify the bio_end_page usage in the buffered IO code.
#     
#        - Support reading inline data at nonzero offsets for erofs.
#     
#        - Fix some typos and bad grammar.
#     
#        - Convert kmap_atomic usage in the inline data read path.
#     
#        - Add some extra inline data input checking.
#     
#        - Fix a memory corruption bug stemming from iomap_swapfile_activate
#          trying to activate more pages than mm was expecting.
#     
#        - Pass errnos through the page writeback code so that writeback
#          errors are reported correctly instead of being munged to EIO.
#     
#        - Replace iomap_apply with a open-coded iterator loops to reduce the
#          number of indirect calls by a third to a half.
#     
#        - Refactor the fsdax code to use iomap iterators instead of the
#          open-coded iomap_apply code that it had before.
#     
#        - Format file range iomap tracepoint data in hexadecimal and
#          standardize the names used in the pretty-print string"
#     
#     * tag 'iomap-5.15-merge-4' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (41 commits)
#       iomap: standardize tracepoint formatting and storage
#       mm/swap: consider max pages in iomap_swapfile_add_extent
#       iomap: move loop control code to iter.c
#       iomap: constify iomap_iter_srcmap
#       fsdax: switch the fault handlers to use iomap_iter
#       fsdax: factor out a dax_fault_actor() helper
#       fsdax: factor out helpers to simplify the dax fault code
#       iomap: rework unshare flag
#       iomap: pass an iomap_iter to various buffered I/O helpers
#       iomap: remove iomap_apply
#       fsdax: switch dax_iomap_rw to use iomap_iter
#       iomap: switch iomap_swapfile_activate to use iomap_iter
#       iomap: switch iomap_seek_data to use iomap_iter
#       iomap: switch iomap_seek_hole to use iomap_iter
#       iomap: switch iomap_bmap to use iomap_iter
#       iomap: switch iomap_fiemap to use iomap_iter
#       iomap: switch __iomap_dio_rw to use iomap_iter
#       iomap: switch iomap_page_mkwrite to use iomap_iter
#       iomap: switch iomap_zero_range to use iomap_iter
#       iomap: switch iomap_file_unshare to use iomap_iter
#       ...
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version
# < git log --format=%s --max-count=1 0ee7c3e25d8c28845fceb4dd1c3cb5f50b9c45a9
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  randconfig
# Added to kconfig CONFIG_PREVENT_FIRMWARE_BUILD=y
# < make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  help
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  olddefconfig
# make -s -j 48 ARCH=arm64 O=/kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-  
Completed OK
# rm -rf /kisskb/build/linus-rand_arm64-randconfig_arm64-gcc8
# Build took: 0:04:03.095359