# git rev-parse -q --verify 14e3e989f6a5d9646b6cf60690499cc8bdc11f7d^{commit} 14e3e989f6a5d9646b6cf60690499cc8bdc11f7d already have revision, skipping fetch # git checkout -q -f -B kisskb 14e3e989f6a5d9646b6cf60690499cc8bdc11f7d # git clean -qxdf # < git log -1 # commit 14e3e989f6a5d9646b6cf60690499cc8bdc11f7d # Author: Linus Torvalds # Date: Sun Dec 27 10:56:33 2020 -0800 # # proc mountinfo: make splice available again # # Since commit 36e2c7421f02 ("fs: don't allow splice read/write without # explicit ops") we've required that file operation structures explicitly # enable splice support, rather than falling back to the default handlers. # # Most /proc files use the indirect 'struct proc_ops' to describe their # file operations, and were fixed up to support splice earlier in commits # 40be821d627c..b24c30c67863, but the mountinfo files interact with the # VFS directly using their own 'struct file_operations' and got missed as # a result. # # This adds the necessary support for splice to work for /proc/*/mountinfo # and friends. # # Reported-by: Joan Bruguera Micó # Reported-by: Jussi Kivilinna # Link: https://bugzilla.kernel.org/show_bug.cgi?id=209971 # Cc: Greg Kroah-Hartman # Cc: Christoph Hellwig # Signed-off-by: Linus Torvalds # < /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 14e3e989f6a5d9646b6cf60690499cc8bdc11f7d # < make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 allyesconfig # Added to kconfig CONFIG_STANDALONE=y # Added to kconfig CONFIG_KCOV=n # Added to kconfig CONFIG_GCC_PLUGINS=n # Added to kconfig CONFIG_GCC_PLUGIN_CYC_COMPLEXITY=n # Added to kconfig CONFIG_GCC_PLUGIN_SANCOV=n # Added to kconfig CONFIG_GCC_PLUGIN_LATENT_ENTROPY=n # Added to kconfig CONFIG_GCC_PLUGIN_STRUCTLEAK=n # Added to kconfig CONFIG_GCC_PLUGIN_RANDSTRUCT=n # Added to kconfig CONFIG_UML_NET=n # Added to kconfig CONFIG_UML_NET_ETHERTAP=n # Added to kconfig CONFIG_UML_NET_TUNTAP=n # Added to kconfig CONFIG_UML_NET_SLIP=n # Added to kconfig CONFIG_UML_NET_DAEMON=n # Added to kconfig CONFIG_UML_NET_VDE=n # Added to kconfig CONFIG_UML_NET_MCAST=n # Added to kconfig CONFIG_UML_NET_PCAP=n # Added to kconfig CONFIG_UML_NET_SLIRP=n # Added to kconfig CONFIG_GCOV_KERNEL=n # Added to kconfig CONFIG_DEBUG_INFO_BTF=n # yes \n | make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 oldconfig yes: standard output: Broken pipe # make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_um-x86_64 CROSS_COMPILE=/opt/cross/kisskb/fe-x86-64-core-i7-2017.05/bin/x86_64-linux- SUBARCH=x86_64 Auto-detecting system features: ... libelf: [ OFF ] ... zlib: [ OFF ] ... bpf: [ on ] No libelf found make[5]: *** [Makefile:287: elfdep] Error 1 make[4]: *** [/kisskb/src/kernel/bpf/preload/Makefile:8: kernel/bpf/preload/libbpf.a] Error 2 make[3]: *** [/kisskb/src/scripts/Makefile.build:496: kernel/bpf/preload] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:496: kernel/bpf] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1805: kernel] Error 2 make[1]: *** Waiting for unfinished jobs.... make: *** [Makefile:185: __sub-make] Error 2 Command 'make -s -j 120 ARCH=um O=/kisskb/build/linus_um-allyesconfig_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-allyesconfig_um-x86_64 # Build took: 0:02:58.538435