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Date: Thu, 14 Oct 2021 00:51:16 +0800
From: kernel test robot <lkp@...el.com>
To: Yu Kuai <yukuai3@...wei.com>, paolo.valente@...aro.org,
axboe@...nel.dk
Cc: kbuild-all@...ts.01.org, linux-block@...r.kernel.org,
linux-kernel@...r.kernel.org, yukuai3@...wei.com,
yi.zhang@...wei.com
Subject: Re: [PATCH v3 1/2] block, bfq: counted root group into
'num_groups_with_pending_reqs'
Hi Yu,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on axboe-block/for-next]
[also build test ERROR on v5.15-rc5 next-20211013]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]
url: https://github.com/0day-ci/linux/commits/Yu-Kuai/optimize-the-bfq-queue-idle-judgment/20211013-191413
base: https://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux-block.git for-next
config: arc-randconfig-r043-20211013 (attached as .config)
compiler: arc-elf-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://github.com/0day-ci/linux/commit/59e859f9efae59f2fb2a850b44953800e06f5eb0
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Yu-Kuai/optimize-the-bfq-queue-idle-judgment/20211013-191413
git checkout 59e859f9efae59f2fb2a850b44953800e06f5eb0
# save the attached .config to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arc SHELL=/bin/bash block/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
>> block/bfq-wf2q.c:981:52: error: expected ',' or ')', found "bfq_entity"
981 | #define bfq_update_groups_with_pending_reqs(struct bfq_entity *entity) \
| ^~~~~~~~~~
block/bfq-wf2q.c: In function '__bfq_activate_entity':
>> block/bfq-wf2q.c:1038:9: error: implicit declaration of function 'bfq_update_groups_with_pending_reqs' [-Werror=implicit-function-declaration]
1038 | bfq_update_groups_with_pending_reqs(entity);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
cc1: some warnings being treated as errors
vim +981 block/bfq-wf2q.c
958
959 static void bfq_update_groups_with_pending_reqs(struct bfq_entity *entity)
960 {
961 struct bfq_queue *bfqq = bfq_entity_to_bfqq(entity);
962
963 if (bfqq) {
964 /*
965 * If the entity represents bfq_queue, and the queue belongs to
966 * root cgroup.
967 */
968 if (!entity->parent)
969 bfq_set_group_with_pending_reqs(bfqq->bfqd,
970 &bfqq->bfqd->root_group->entity);
971 } else {
972 /* If the entity represents bfq_group. */
973 struct bfq_group *bfqg =
974 container_of(entity, struct bfq_group, entity);
975 struct bfq_data *bfqd = bfqg->bfqd;
976
977 bfq_set_group_with_pending_reqs(bfqd, entity);
978 }
979 }
980 #else
> 981 #define bfq_update_groups_with_pending_reqs(struct bfq_entity *entity) \
982 do {} while (0)
983 #endif
984
985 /**
986 * __bfq_activate_entity - handle activation of entity.
987 * @entity: the entity being activated.
988 * @non_blocking_wait_rq: true if entity was waiting for a request
989 *
990 * Called for a 'true' activation, i.e., if entity is not active and
991 * one of its children receives a new request.
992 *
993 * Basically, this function updates the timestamps of entity and
994 * inserts entity into its active tree, after possibly extracting it
995 * from its idle tree.
996 */
997 static void __bfq_activate_entity(struct bfq_entity *entity,
998 bool non_blocking_wait_rq)
999 {
1000 struct bfq_service_tree *st = bfq_entity_service_tree(entity);
1001 bool backshifted = false;
1002 unsigned long long min_vstart;
1003
1004 /* See comments on bfq_fqq_update_budg_for_activation */
1005 if (non_blocking_wait_rq && bfq_gt(st->vtime, entity->finish)) {
1006 backshifted = true;
1007 min_vstart = entity->finish;
1008 } else
1009 min_vstart = st->vtime;
1010
1011 if (entity->tree == &st->idle) {
1012 /*
1013 * Must be on the idle tree, bfq_idle_extract() will
1014 * check for that.
1015 */
1016 bfq_idle_extract(st, entity);
1017 entity->start = bfq_gt(min_vstart, entity->finish) ?
1018 min_vstart : entity->finish;
1019 } else {
1020 /*
1021 * The finish time of the entity may be invalid, and
1022 * it is in the past for sure, otherwise the queue
1023 * would have been on the idle tree.
1024 */
1025 entity->start = min_vstart;
1026 st->wsum += entity->weight;
1027 /*
1028 * entity is about to be inserted into a service tree,
1029 * and then set in service: get a reference to make
1030 * sure entity does not disappear until it is no
1031 * longer in service or scheduled for service.
1032 */
1033 bfq_get_entity(entity);
1034
1035 entity->on_st_or_in_serv = true;
1036 }
1037
> 1038 bfq_update_groups_with_pending_reqs(entity);
1039 bfq_update_fin_time_enqueue(entity, st, backshifted);
1040 }
1041
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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