# 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 # 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 # Reported-by: Jens Axboe # Reviewed-by: Jens Axboe # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-ld --version # < git log --format=%s --max-count=1 3644e2d2dda78e21edd8f5415b6d7ab03f5f54f3 # < make -s -j 32 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- m5272c3_defconfig # < make -s -j 32 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- help # make -s -j 32 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- olddefconfig # make -s -j 32 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux- /kisskb/src/drivers/net/ethernet/freescale/fec_main.c: In function 'fec_restart': /kisskb/src/drivers/net/ethernet/freescale/fec_main.c:947:6: warning: unused variable 'val' [-Wunused-variable] u32 val; ^~~ /kisskb/src/drivers/net/ethernet/freescale/fec_main.c: In function 'fec_get_mac': /kisskb/src/drivers/net/ethernet/freescale/fec_main.c:1665:28: warning: unused variable 'pdata' [-Wunused-variable] struct fec_platform_data *pdata = dev_get_platdata(&fep->pdev->dev); ^~~~~ Completed OK # rm -rf /kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 # Build took: 0:00:36.569448