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From: Joel Fernandes <joelagnelf@nvidia.com>
To: linux-kernel@vger.kernel.org, Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Vincent Guittot <vincent.guittot@linaro.org>,
	Dietmar Eggemann <dietmar.eggemann@arm.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Ben Segall <bsegall@google.com>, Mel Gorman <mgorman@suse.de>,
	Valentin Schneider <vschneid@redhat.com>,
	Daniel Bristot de Oliveira <bristot@kernel.org>
Cc: Joel Fernandes <joelagnelf@nvidia.com>, Tejun Heo <tj@kernel.org>,
	David Vernet <void@manifault.com>,
	Andrea Righi <arighi@nvidia.com>,
	Changwoo Min <changwoo@igalia.com>
Subject: [PATCH v4 03/15] sched/deadline: Clear the defer params
Date: Tue, 17 Jun 2025 16:05:06 -0400	[thread overview]
Message-ID: <20250617200523.1261231-4-joelagnelf@nvidia.com> (raw)
In-Reply-To: <20250617200523.1261231-1-joelagnelf@nvidia.com>

The defer params were not cleared in __dl_clear_params. Clear them.

Without this is some of my test cases are flaking and the DL timer is
not starting correctly AFAICS.

Fixes: a110a81c52a9 ("sched/deadline: Deferrable dl server")
Reviewed-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
---
 kernel/sched/deadline.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index ad45a8fea245..ae15ec6294cf 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -3431,6 +3431,9 @@ static void __dl_clear_params(struct sched_dl_entity *dl_se)
 	dl_se->dl_non_contending	= 0;
 	dl_se->dl_overrun		= 0;
 	dl_se->dl_server		= 0;
+	dl_se->dl_defer			= 0;
+	dl_se->dl_defer_running	= 0;
+	dl_se->dl_defer_armed	= 0;
 
 #ifdef CONFIG_RT_MUTEXES
 	dl_se->pi_se			= dl_se;
-- 
2.43.0


  parent reply	other threads:[~2025-06-17 20:06 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-17 20:05 [PATCH v4 00/15] Add a deadline server for sched_ext tasks Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 01/15] sched/debug: Fix updating of ppos on server write ops Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 02/15] sched/debug: Stop and start server based on if it was active Joel Fernandes
2025-06-17 20:05 ` Joel Fernandes [this message]
2025-06-17 20:05 ` [PATCH v4 04/15] sched/deadline: Prevent setting server as started if params couldn't be applied Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 05/15] sched/deadline: Return EBUSY if dl_bw_cpus is zero Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 06/15] sched: Add support to pick functions to take rf Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 07/15] sched: Add a server arg to dl_server_update_idle_time() Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 08/15] sched/ext: Add a DL server for sched_ext tasks Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 09/15] sched/debug: Add support to change sched_ext server params Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 10/15] sched/deadline: Add support to remove DLserver's bandwidth contribution Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 11/15] sched/ext: Relinquish DL server reservations when not needed Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 12/15] sched_ext: Update rq clock when stopping dl_server Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 13/15] selftests/sched_ext: Add test for sched_ext dl_server Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 14/15] Remove the ext server BW before changing tasks to FAIR Joel Fernandes
2025-06-17 20:12   ` Joel Fernandes
2025-06-17 20:42   ` Andrea Righi
2025-06-18 13:21     ` Joel Fernandes
2025-06-17 20:05 ` [PATCH v4 15/15] sched/deadline: Fix DL server crash in inactive_timer callback Joel Fernandes

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