# git rev-parse -q --verify 3644e2d2dda78e21edd8f5415b6d7ab03f5f54f3^{commit}
3644e2d2dda78e21edd8f5415b6d7ab03f5f54f3
already have revision, skipping fetch
# git checkout -q -f -B kisskb 3644e2d2dda78e21edd8f5415b6d7ab03f5f54f3
# git clean -qxdf
# < git log -1
# commit 3644e2d2dda78e21edd8f5415b6d7ab03f5f54f3
# Author: Kent Overstreet <kent.overstreet@gmail.com>
# Date:   Fri Dec 18 04:07:11 2020 -0500
# 
#     mm/filemap: fix infinite loop in generic_file_buffered_read()
#     
#     If iter->count is 0 and iocb->ki_pos is page aligned, this causes
#     nr_pages to be 0.
#     
#     Then in generic_file_buffered_read_get_pages() find_get_pages_contig()
#     returns 0 - because we asked for 0 pages, so we call
#     generic_file_buffered_read_no_cached_page() which attempts to add a page
#     to the page cache, which fails with -EEXIST, and then we loop. Oops...
#     
#     Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
#     Reported-by: Jens Axboe <axboe@kernel.dk>
#     Reviewed-by: Jens Axboe <axboe@kernel.dk>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 3644e2d2dda78e21edd8f5415b6d7ab03f5f54f3
# < make -s -j 80 ARCH=sh O=/kisskb/build/linus_edosk7705_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  edosk7705_defconfig
# < make -s -j 80 ARCH=sh O=/kisskb/build/linus_edosk7705_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 80 ARCH=sh O=/kisskb/build/linus_edosk7705_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 80 ARCH=sh O=/kisskb/build/linus_edosk7705_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/arch/sh/kernel/traps.c: In function 'nmi_trap_handler':
/kisskb/src/arch/sh/kernel/traps.c:183:15: warning: unused variable 'cpu' [-Wunused-variable]
  unsigned int cpu = smp_processor_id();
               ^
  Kernel: arch/sh/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_edosk7705_defconfig_sh4-gcc4.9
# Build took: 0:00:28.164292