Hi Kashyap, [auto build test ERROR on v4.9-rc8] [cannot apply to block/for-next linus/master linux/master next-20170111] [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/Kashyap-Desai/preview-block-layer-help-to-detect-sequential-IO/20170112-024228 config: i386-randconfig-a0-201702 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): block/blk-core.c: In function 'add_sequential': >> block/blk-core.c:1899:16: error: 'struct task_struct' has no member named 'sequential_io_avg' blk_ewma_add(t->sequential_io_avg, ^ block/blk-core.c:1893:10: note: in definition of macro 'blk_ewma_add' (ewma) *= (weight) - 1; \ ^~~~ >> block/blk-core.c:1899:16: error: 'struct task_struct' has no member named 'sequential_io_avg' blk_ewma_add(t->sequential_io_avg, ^ block/blk-core.c:1894:10: note: in definition of macro 'blk_ewma_add' (ewma) += (val) << factor; \ ^~~~ >> block/blk-core.c:1900:5: error: 'struct task_struct' has no member named 'sequential_io' t->sequential_io, 8, 0); ^ block/blk-core.c:1894:20: note: in definition of macro 'blk_ewma_add' (ewma) += (val) << factor; \ ^~~ >> block/blk-core.c:1899:16: error: 'struct task_struct' has no member named 'sequential_io_avg' blk_ewma_add(t->sequential_io_avg, ^ block/blk-core.c:1895:10: note: in definition of macro 'blk_ewma_add' (ewma) /= (weight); \ ^~~~ >> block/blk-core.c:1899:16: error: 'struct task_struct' has no member named 'sequential_io_avg' blk_ewma_add(t->sequential_io_avg, ^ block/blk-core.c:1896:10: note: in definition of macro 'blk_ewma_add' (ewma) >> factor; \ ^~~~ block/blk-core.c:1902:3: error: 'struct task_struct' has no member named 'sequential_io' t->sequential_io = 0; ^~ block/blk-core.c: In function 'generic_make_request_checks': block/blk-core.c:2012:7: error: 'struct task_struct' has no member named 'sequential_io' task->sequential_io = i->sequential; ^~ In file included from block/blk-core.c:14:0: block/blk-core.c:2020:21: error: 'struct task_struct' has no member named 'sequential_io' sectors = max(task->sequential_io, ^ include/linux/kernel.h:747:2: note: in definition of macro '__max' t1 max1 = (x); \ ^~ block/blk-core.c:2020:13: note: in expansion of macro 'max' sectors = max(task->sequential_io, ^~~ block/blk-core.c:2020:21: error: 'struct task_struct' has no member named 'sequential_io' sectors = max(task->sequential_io, ^ include/linux/kernel.h:747:13: note: in definition of macro '__max' t1 max1 = (x); \ ^ block/blk-core.c:2020:13: note: in expansion of macro 'max' sectors = max(task->sequential_io, ^~~ block/blk-core.c:2021:14: error: 'struct task_struct' has no member named 'sequential_io_avg' task->sequential_io_avg) >> 9; ^ include/linux/kernel.h:748:2: note: in definition of macro '__max' t2 max2 = (y); \ ^~ block/blk-core.c:2020:13: note: in expansion of macro 'max' sectors = max(task->sequential_io, ^~~ block/blk-core.c:2021:14: error: 'struct task_struct' has no member named 'sequential_io_avg' task->sequential_io_avg) >> 9; ^ include/linux/kernel.h:748:13: note: in definition of macro '__max' t2 max2 = (y); \ ^ block/blk-core.c:2020:13: note: in expansion of macro 'max' sectors = max(task->sequential_io, ^~~ vim +1899 block/blk-core.c 1887 } 1888 1889 static void add_sequential(struct task_struct *t) 1890 { 1891 #define blk_ewma_add(ewma, val, weight, factor) \ 1892 ({ \ > 1893 (ewma) *= (weight) - 1; \ 1894 (ewma) += (val) << factor; \ 1895 (ewma) /= (weight); \ 1896 (ewma) >> factor; \ 1897 }) 1898 > 1899 blk_ewma_add(t->sequential_io_avg, > 1900 t->sequential_io, 8, 0); 1901 1902 t->sequential_io = 0; 1903 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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