linux-kernel - [tip: sched/fifo] sched,mmc: Convert to sched_set

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <159557962652.4006.11649892529490594226.tip-bot2@tip-bot2>
Date:   Fri, 24 Jul 2020 08:33:46 -0000
From:   "tip-bot2 for Peter Zijlstra" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     "Peter Zijlstra (Intel)" <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>, x86 <x86@...nel.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: [tip: sched/fifo] sched,mmc: Convert to sched_set_fifo*()

The following commit has been merged into the sched/fifo branch of tip:

Commit-ID:     f8ec806be101e9a6482532d19eca4c5be3535b74
Gitweb:        https://git.kernel.org/tip/f8ec806be101e9a6482532d19eca4c5be3535b74
Author:        Peter Zijlstra <peterz@...radead.org>
AuthorDate:    Tue, 21 Apr 2020 12:09:13 +02:00
Committer:     Peter Zijlstra <peterz@...radead.org>
CommitterDate: Mon, 15 Jun 2020 14:10:22 +02:00

sched,mmc: Convert to sched_set_fifo*()

Because SCHED_FIFO is a broken scheduler model (see previous patches)
take away the priority field, the kernel can't possibly make an
informed decision.

In this case, use fifo_low, because it only cares about being above
SCHED_NORMAL. Effectively no change in behaviour.

Signed-off-by: Peter Zijlstra (Intel) <peterz@...radead.org>
Reviewed-by: Ingo Molnar <mingo@...nel.org>
Acked-by: Ulf Hansson <ulf.hansson@...aro.org>
---
 drivers/mmc/core/sdio_irq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/mmc/core/sdio_irq.c b/drivers/mmc/core/sdio_irq.c
index 3ffe4ff..4b1f7c9 100644
--- a/drivers/mmc/core/sdio_irq.c
+++ b/drivers/mmc/core/sdio_irq.c
@@ -139,11 +139,10 @@ EXPORT_SYMBOL_GPL(sdio_signal_irq);
 static int sdio_irq_thread(void *_host)
 {
 	struct mmc_host *host = _host;
-	struct sched_param param = { .sched_priority = 1 };
 	unsigned long period, idle_period;
 	int ret;
 
-	sched_setscheduler(current, SCHED_FIFO, &param);
+	sched_set_fifo_low(current);
 
 	/*
 	 * We want to allow for SDIO cards to work even on non SDIO