Hi Stanislaw, [auto build test ERROR on powerpc/next] [also build test ERROR on v4.9-rc3 next-20161028] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information] url: https://github.com/0day-ci/linux/commits/Stanislaw-Gruszka/cputime-powerpc-remove-cputime_last_delta-global-variable/20161031-204221 base: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next config: s390-default_defconfig (attached as .config) compiler: s390x-linux-gnu-gcc (Debian 6.1.1-9) 6.1.1 20160705 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree make.cross ARCH=s390 All errors (new ones prefixed by >>): arch/s390/kernel/vtime.c: In function 'do_account_vtime': >> arch/s390/kernel/vtime.c:141:5: error: 'struct task_struct' has no member named 'utimescaled' tsk->utimescaled += user_scaled; ^~ >> arch/s390/kernel/vtime.c:143:2: error: expected ';' before 'tsk' tsk->stimescaled += system_scaled; ^~~ arch/s390/kernel/vtime.c: In function 'vtime_account_irq_enter': >> arch/s390/kernel/vtime.c:208:5: error: 'struct task_struct' has no member named 'stimescaled' tsk->stimescaled += system_scaled; ^~ vim +141 arch/s390/kernel/vtime.c 135 u64 div = __this_cpu_read(mt_scaling_div); 136 137 user_scaled = (user_scaled * mult) / div; 138 system_scaled = (system_scaled * mult) / div; 139 } 140 account_user_time(tsk, user); > 141 tsk->utimescaled += user_scaled; 142 account_system_time(tsk, hardirq_offset, system) > 143 tsk->stimescaled += system_scaled; 144 145 steal = S390_lowcore.steal_timer; 146 if ((s64) steal > 0) { 147 S390_lowcore.steal_timer = 0; 148 account_steal_time(steal); 149 } 150 151 return virt_timer_forward(user + system); 152 } 153 154 void vtime_task_switch(struct task_struct *prev) 155 { 156 struct thread_info *ti; 157 158 do_account_vtime(prev, 0); 159 ti = task_thread_info(prev); 160 ti->user_timer = S390_lowcore.user_timer; 161 ti->system_timer = S390_lowcore.system_timer; 162 ti = task_thread_info(current); 163 S390_lowcore.user_timer = ti->user_timer; 164 S390_lowcore.system_timer = ti->system_timer; 165 } 166 167 /* 168 * In s390, accounting pending user time also implies 169 * accounting system time in order to correctly compute 170 * the stolen time accounting. 171 */ 172 void vtime_account_user(struct task_struct *tsk) 173 { 174 if (do_account_vtime(tsk, HARDIRQ_OFFSET)) 175 virt_timer_expire(); 176 } 177 178 /* 179 * Update process times based on virtual cpu times stored by entry.S 180 * to the lowcore fields user_timer, system_timer & steal_clock. 181 */ 182 void vtime_account_irq_enter(struct task_struct *tsk) 183 { 184 struct thread_info *ti = task_thread_info(tsk); 185 u64 timer, system, system_scaled; 186 187 timer = S390_lowcore.last_update_timer; 188 S390_lowcore.last_update_timer = get_vtimer(); 189 S390_lowcore.system_timer += timer - S390_lowcore.last_update_timer; 190 191 /* Update MT utilization calculation */ 192 if (smp_cpu_mtid && 193 time_after64(jiffies_64, this_cpu_read(mt_scaling_jiffies))) 194 update_mt_scaling(); 195 196 system = S390_lowcore.system_timer - ti->system_timer; 197 S390_lowcore.steal_timer -= system; 198 ti->system_timer = S390_lowcore.system_timer; 199 system_scaled = system; 200 /* Do MT utilization scaling */ 201 if (smp_cpu_mtid) { 202 u64 mult = __this_cpu_read(mt_scaling_mult); 203 u64 div = __this_cpu_read(mt_scaling_div); 204 205 system_scaled = (system_scaled * mult) / div; 206 } 207 account_system_time(tsk, 0, system); > 208 tsk->stimescaled += system_scaled; 209 210 virt_timer_forward(system); 211 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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