# git rev-parse -q --verify f8ad8187c3b536ee2b10502a8340c014204a1af0^{commit}
f8ad8187c3b536ee2b10502a8340c014204a1af0
already have revision, skipping fetch
# git checkout -q -f -B kisskb f8ad8187c3b536ee2b10502a8340c014204a1af0
# git clean -qxdf
# < git log -1
# commit f8ad8187c3b536ee2b10502a8340c014204a1af0
# Author: Johannes Berg <johannes@sipsolutions.net>
# Date:   Mon Jan 25 10:16:15 2021 +0100
# 
#     fs/pipe: allow sendfile() to pipe again
#     
#     After commit 36e2c7421f02 ("fs: don't allow splice read/write
#     without explicit ops") sendfile() could no longer send data
#     from a real file to a pipe, breaking for example certain cgit
#     setups (e.g. when running behind fcgiwrap), because in this
#     case cgit will try to do exactly this: sendfile() to a pipe.
#     
#     Fix this by using iter_file_splice_write for the splice_write
#     method of pipes, as suggested by Christoph.
#     
#     Cc: stable@vger.kernel.org
#     Fixes: 36e2c7421f02 ("fs: don't allow splice read/write without explicit ops")
#     Suggested-by: Christoph Hellwig <hch@lst.de>
#     Reviewed-by: Christoph Hellwig <hch@lst.de>
#     Tested-by: Johannes Berg <johannes@sipsolutions.net>
#     Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 f8ad8187c3b536ee2b10502a8340c014204a1af0
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  pmac32_defconfig
# Added to kconfig CONFIG_VIRTUALIZATION=y
# Added to kconfig CONFIG_KVM=y
# Added to kconfig CONFIG_KVM_BOOK3S_32=m
# Added to kconfig 
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  help
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  olddefconfig
.config:4135:warning: override: reassigning to symbol VIRTUALIZATION
# make -s -j 48 ARCH=powerpc O=/kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/block/genhd.c: In function 'diskstats_show':
/kisskb/src/block/genhd.c:1520:1: warning: the frame size of 1160 bytes is larger than 1024 bytes [-Wframe-larger-than=]
 }
 ^
INFO: Uncompressed kernel (size 0xa519d4) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0xb00000)
Completed OK
# rm -rf /kisskb/build/linus_pmac32_defconfig+KVM_powerpc-gcc4.9
# Build took: 0:01:43.021172