There is no "calc_load --> calc_avg" in patch 02,please check.
Thanks！
From: chengjian (D)Date: 2021-09-07 10:21Subject: Re: [PATCH kernel-4.19 02/29] sched: loadavg: consolidate LOAD_INT, LOAD_FRAC, CALC_LOAD您好，冒昧打扰。
您的补丁自第 2 个补丁之后，有如下编译错误。
On 2021/9/5 22:26, Liu Xinpeng wrote:
* latency such that 1/exp (decay rate) is [1 min, 2.5 min) when windows @@ -505,7 +505,7 @@ static void iolatency_check_latencies(struct iolatency_grp *iolat, u64 now) lat_info = &parent->child_lat; /* - * CALC_LOAD takes in a number stored in fixed point representation. + * calc_load takes in a number stored in fixed point representation. * Because we are using this for IO time in ns, the values stored * are significantly larger than the FIXED_1 denominator (2048). * Therefore, rounding errors in the calculation are negligible and @@ -514,7 +514,8 @@ static void iolatency_check_latencies(struct iolatency_grp *iolat, u64 now) exp_idx = min_t(int, BLKIOLATENCY_NR_EXP_FACTORS - 1, div64_u64(iolat->cur_win_nsec, BLKIOLATENCY_EXP_BUCKET_SIZE)); - CALC_LOAD(iolat->lat_avg, iolatency_exp_factors[exp_idx], stat.mean); + iolat->lat_avg = calc_avg(iolat->lat_avg, + iolatency_exp_factors[exp_idx], stat.mean);
make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- allmodconfig && make -j64 ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- block/blk-iolatency.c: In function ‘iolatency_check_latencies’: block/blk-iolatency.c:517:19: error: implicit declaration of function ‘calc_avg’; did you mean ‘calc_load’? [-Werror=implicit-function-declaration] iolat->lat_avg = calc_avg(iolat->lat_avg, ^~~~~~~~ calc_load cc1: some warnings being treated as errors make[1]: *** [block/blk-iolatency.o] Error 1 make: *** [block] Error 2 make: *** Waiting for unfinished jobs....cp arch/arm64/configs/storage_ci_defconfig .config && make -j8 ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- block/blk-iolatency.c: In function ‘iolatency_check_latencies’: block/blk-iolatency.c:517:19: error: implicit declaration of function ‘calc_avg’; did you mean ‘calc_load’? [-Werror=implicit-function-declaration] iolat->lat_avg = calc_avg(iolat->lat_avg, ^~~~~~~~ calc_load cc1: some warnings being treated as errors make[1]: *** [block/blk-iolatency.o] Error 1 make: *** [block] Error 2 make: *** Waiting for unfinished jobs.... * _HZ for the global load-average.
kernel 合入的补丁要求每个补丁依次顺序合入都可以正常编译。
谢谢。
---- 成坚
make ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu- allmodconfig && make -j64 ARCH=x86_64 CROSS_COMPILE=x86_64-linux-gnu- block/blk-iolatency.c: In function ‘iolatency_check_latencies’: block/blk-iolatency.c:517:19: error: implicit declaration of function ‘calc_avg’; did you mean ‘calc_load’? [-Werror=implicit-function-declaration] iolat->lat_avg = calc_avg(iolat->lat_avg, ^~~~~~~~ calc_load cc1: some warnings being treated as errors make[1]: *** [block/blk-iolatency.o] Error 1 make: *** [block] Error 2 make: *** Waiting for unfinished jobs....