38 lines
997 B
Diff
38 lines
997 B
Diff
From c614dbbfd3480cf18c90fd51bb52abd53339b790 Mon Sep 17 00:00:00 2001
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From: "Jan Alexander Steffens (heftig)" <jan.steffens@gmail.com>
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Date: Mon, 27 Jan 2020 18:11:05 +0100
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Subject: ZEN: INTERACTIVE: Use BFQ as the elevator for SQ devices
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---
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block/elevator.c | 4 ++++
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init/Kconfig | 4 ++++
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2 files changed, 8 insertions(+)
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--- a/block/elevator.c
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+++ b/block/elevator.c
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@@ -568,7 +568,11 @@ static struct elevator_type *elevator_ge
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!blk_mq_is_shared_tags(q->tag_set->flags))
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return NULL;
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+#if defined(CONFIG_ZEN_INTERACTIVE) && defined(CONFIG_IOSCHED_BFQ)
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+ return elevator_find_get("bfq");
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+#else
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return elevator_find_get("mq-deadline");
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+#endif
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}
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/*
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--- a/init/Kconfig
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+++ b/init/Kconfig
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@@ -140,6 +140,10 @@ config ZEN_INTERACTIVE
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help
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Tunes the kernel for responsiveness at the cost of throughput and power usage.
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+ --- Block Layer ----------------------------------------
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+
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+ Default scheduler for SQ..: mq-deadline -> bfq
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+
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config BROKEN
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bool
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