Hi Andrea, Thank you for the patch! Yet something to improve:
[auto build test ERROR on linus/master] [also build test ERROR on v5.0 next-20190306] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Andrea-Righi/blkcg-prevent-priority-inversion-problem-during-sync/20190310-020543 config: riscv-tinyconfig (attached as .config) compiler: riscv64-linux-gcc (GCC) 8.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=8.2.0 make.cross ARCH=riscv All errors (new ones prefixed by >>): fs/sync.c: In function 'sync_fs_one_sb': >> fs/sync.c:83:3: error: implicit declaration of function >> 'blkcg_start_wb_wait_on_bdi' [-Werror=implicit-function-declaration] blkcg_start_wb_wait_on_bdi(bdi); ^~~~~~~~~~~~~~~~~~~~~~~~~~ >> fs/sync.c:85:3: error: implicit declaration of function >> 'blkcg_stop_wb_wait_on_bdi' [-Werror=implicit-function-declaration] blkcg_stop_wb_wait_on_bdi(bdi); ^~~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/blkcg_start_wb_wait_on_bdi +83 fs/sync.c 77 78 static void sync_fs_one_sb(struct super_block *sb, void *arg) 79 { 80 struct backing_dev_info *bdi = sb->s_bdi; 81 82 if (!sb_rdonly(sb) && sb->s_op->sync_fs) { > 83 blkcg_start_wb_wait_on_bdi(bdi); 84 sb->s_op->sync_fs(sb, *(int *)arg); > 85 blkcg_stop_wb_wait_on_bdi(bdi); 86 } 87 } 88 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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