From: brookxu <brookxu.cn@gmail.com>
To: paolo.valente@linaro.org, axboe@kernel.dk
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [RESEND PATCH 5/8] bfq: remove unnecessary initialization logic
Date: Thu, 10 Jun 2021 15:22:34 +0800 [thread overview]
Message-ID: <686dd8506bb511ae181a99c9b45f287233aa2ecf.1618916839.git.brookxu@tencent.com> (raw)
Message-ID: <20210610072234.BoYduqQt9o3ZiExo63RK3u2a8h126URC6ZoybZKAi68@z> (raw)
In-Reply-To: <1ce935f1bb10e0c7ecea7b79b826ff4cfc89acf0.1618916839.git.brookxu@tencent.com>
In-Reply-To: <cover.1618916839.git.brookxu@tencent.com>
From: Chunguang Xu <brookxu@tencent.com>
Since we will initialize sched_data.service_tree[] in
bfq_init_root_group(), bfq_create_group_hierarchy() can
ignore this part of the initialization, which can avoid
repeated initialization.
Signed-off-by: Chunguang Xu <brookxu@tencent.com>
---
block/bfq-cgroup.c | 4 ----
1 file changed, 4 deletions(-)
diff --git a/block/bfq-cgroup.c b/block/bfq-cgroup.c
index 50d06c7..c8c68dc 100644
--- a/block/bfq-cgroup.c
+++ b/block/bfq-cgroup.c
@@ -1429,15 +1429,11 @@ void bfqg_and_blkg_put(struct bfq_group *bfqg) {}
struct bfq_group *bfq_create_group_hierarchy(struct bfq_data *bfqd, int node)
{
struct bfq_group *bfqg;
- int i;
bfqg = kmalloc_node(sizeof(*bfqg), GFP_KERNEL | __GFP_ZERO, node);
if (!bfqg)
return NULL;
- for (i = 0; i < BFQ_IOPRIO_CLASSES; i++)
- bfqg->sched_data.service_tree[i] = BFQ_SERVICE_TREE_INIT;
-
return bfqg;
}
#endif /* CONFIG_BFQ_GROUP_IOSCHED */
--
1.8.3.1
next prev parent reply other threads:[~2021-06-10 7:24 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-20 11:20 [PATCH 0/8] bfq: misc updates brookxu
2021-04-20 11:20 ` [PATCH 1/8] bfq: introduce bfq_entity_to_bfqg helper method brookxu
2021-06-10 7:22 ` [RESEND PATCH " brookxu
2021-06-10 8:31 ` Oleksandr Natalenko
2021-06-10 9:05 ` brookxu
2021-06-10 9:18 ` Piotr Górski
2021-04-20 11:20 ` [PATCH 2/8] bfq: convert the type of bfq_group.bfqd to bfq_data* brookxu
2021-06-10 7:22 ` [RESEND PATCH " brookxu
2021-04-20 11:20 ` [PATCH 3/8] bfq: limit the IO depth of CLASS_IDLE to 1 brookxu
2021-06-10 7:22 ` [RESEND PATCH " brookxu
2021-04-20 11:20 ` [PATCH 4/8] bfq: keep the minimun bandwidth for CLASS_BE brookxu
2021-06-10 7:22 ` [RESEND PATCH " brookxu
2021-04-20 11:20 ` brookxu [this message]
2021-06-10 7:22 ` [RESEND PATCH 5/8] bfq: remove unnecessary initialization logic brookxu
2021-04-20 11:20 ` [PATCH 6/8] bfq: optimize the calculation of bfq_weight_to_ioprio() brookxu
2021-06-10 7:22 ` [RESEND PATCH " brookxu
2021-04-20 11:20 ` [PATCH 7/8] bfq: reset entity->prio_changed in bfq_init_entity() brookxu
2021-06-10 7:22 ` [RESEND PATCH " brookxu
2021-04-20 11:20 ` [PATCH 8/8] bfq: remove unnecessary BFQ_DEFAULT_GRP_IOPRIO brookxu
2021-06-10 7:22 ` [RESEND PATCH " brookxu
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