# git rev-parse -q --verify 725737e7c21d2d25a4312c2aaa82a52bd03e3126^{commit}
725737e7c21d2d25a4312c2aaa82a52bd03e3126
already have revision, skipping fetch
# git checkout -q -f -B kisskb 725737e7c21d2d25a4312c2aaa82a52bd03e3126
# git clean -qxdf
# < git log -1
# commit 725737e7c21d2d25a4312c2aaa82a52bd03e3126
# Merge: 5779aa2dac9a 61a223df421f
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Mon Oct 3 20:33:41 2022 -0700
# 
#     Merge tag 'statx-dioalign-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
#     
#     Pull STATX_DIOALIGN support from Eric Biggers:
#      "Make statx() support reporting direct I/O (DIO) alignment information.
#     
#       This provides a generic interface for userspace programs to determine
#       whether a file supports DIO, and if so with what alignment
#       restrictions. Specifically, STATX_DIOALIGN works on block devices, and
#       on regular files when their containing filesystem has implemented
#       support.
#     
#       An interface like this has been requested for years, since the
#       conditions for when DIO is supported in Linux have gotten increasingly
#       complex over time. Today, DIO support and alignment requirements can
#       be affected by various filesystem features such as multi-device
#       support, data journalling, inline data, encryption, verity,
#       compression, checkpoint disabling, log-structured mode, etc.
#     
#       Further complicating things, Linux v6.0 relaxed the traditional rule
#       of DIO needing to be aligned to the block device's logical block size;
#       now user buffers (but not file offsets) only need to be aligned to the
#       DMA alignment.
#     
#       The approach of uplifting the XFS specific ioctl XFS_IOC_DIOINFO was
#       discarded in favor of creating a clean new interface with statx().
#     
#       For more information, see the individual commits and the man page
#       update[1]"
#     
#     Link: https://lore.kernel.org/r/20220722074229.148925-1-ebiggers@kernel.org [1]
#     
#     * tag 'statx-dioalign-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
#       xfs: support STATX_DIOALIGN
#       f2fs: support STATX_DIOALIGN
#       f2fs: simplify f2fs_force_buffered_io()
#       f2fs: move f2fs_force_buffered_io() into file.c
#       ext4: support STATX_DIOALIGN
#       fscrypt: change fscrypt_dio_supported() to prepare for STATX_DIOALIGN
#       vfs: support STATX_DIOALIGN on block devices
#       statx: add direct I/O alignment information
# < /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 725737e7c21d2d25a4312c2aaa82a52bd03e3126
# < make -s -j 24 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 24 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 help
# make -s -j 24 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 olddefconfig
# make -s -j 24 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/os-Linux/util.c:17:24: fatal error: sys/random.h: No such file or directory
compilation terminated.
make[2]: *** [/kisskb/src/scripts/Makefile.build:250: arch/um/os-Linux/util.o] Error 1
make[2]: *** Waiting for unfinished jobs....
make[1]: *** [/kisskb/src/Makefile:1995: arch/um/os-Linux] Error 2
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:231: __sub-make] Error 2
Command 'make -s -j 24 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 ' returned non-zero exit status 2
# rm -rf /kisskb/build/linus_um-defconfig_um-x86_64
# Build took: 0:00:28.746864