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From: Frederic Weisbecker <frederic@kernel.org>
To: LKML <linux-kernel@vger.kernel.org>
Cc: Frederic Weisbecker <frederic@kernel.org>,
	Tejun Heo <tj@kernel.org>, Peter Zijlstra <peterz@infradead.org>,
	Juri Lelli <juri.lelli@redhat.com>,
	Alex Belits <abelits@marvell.com>, Nitesh Lal <nilal@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Nicolas Saenz <nsaenzju@redhat.com>,
	Christoph Lameter <cl@gentwo.de>,
	Marcelo Tosatti <mtosatti@redhat.com>,
	Zefan Li <lizefan.x@bytedance.com>,
	cgroups@vger.kernel.org
Subject: [RFC PATCH 3/6] net: Decouple HK_FLAG_WQ and HK_FLAG_DOMAIN cpumask fetch
Date: Wed, 14 Jul 2021 15:54:17 +0200	[thread overview]
Message-ID: <20210714135420.69624-4-frederic@kernel.org> (raw)
In-Reply-To: <20210714135420.69624-1-frederic@kernel.org>

To prepare for supporting each feature of the housekeeping cpumask
toward cpuset, prepare for HK_FLAG_DOMAIN to move to its own cpumask.
This will allow to modify the set passed through "isolcpus=" kernel boot
parameter on runtime.

Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Marcelo Tosatti <mtosatti@redhat.com>
Cc: Nitesh Lal <nilal@redhat.com>
Cc: Nicolas Saenz <nsaenzju@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Christoph Lameter <cl@gentwo.de>
Cc: Tejun Heo <tj@kernel.org>
Cc: Zefan Li <lizefan.x@bytedance.com>
Cc: Alex Belits <abelits@marvell.com>
---
 net/core/net-sysfs.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c
index f6197774048b..78ea904e9206 100644
--- a/net/core/net-sysfs.c
+++ b/net/core/net-sysfs.c
@@ -782,7 +782,7 @@ static ssize_t store_rps_map(struct netdev_rx_queue *queue,
 {
 	struct rps_map *old_map, *map;
 	cpumask_var_t mask;
-	int err, cpu, i, hk_flags;
+	int err, cpu, i;
 	static DEFINE_MUTEX(rps_map_mutex);
 
 	if (!capable(CAP_NET_ADMIN))
@@ -798,8 +798,8 @@ static ssize_t store_rps_map(struct netdev_rx_queue *queue,
 	}
 
 	if (!cpumask_empty(mask)) {
-		hk_flags = HK_FLAG_DOMAIN | HK_FLAG_WQ;
-		cpumask_and(mask, mask, housekeeping_cpumask(hk_flags));
+		cpumask_and(mask, mask, housekeeping_cpumask(HK_FLAG_DOMAIN));
+		cpumask_and(mask, mask, housekeeping_cpumask(HK_FLAG_WQ));
 		if (cpumask_empty(mask)) {
 			free_cpumask_var(mask);
 			return -EINVAL;
-- 
2.25.1


  parent reply	other threads:[~2021-07-14 13:54 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-14 13:54 [RFC PATCH 0/6] cpuset: Allow to modify isolcpus through cpuset Frederic Weisbecker
2021-07-14 13:54 ` [RFC PATCH 1/6] pci: Decouple HK_FLAG_WQ and HK_FLAG_DOMAIN cpumask fetch Frederic Weisbecker
2021-07-14 13:54 ` [RFC PATCH 2/6] workqueue: " Frederic Weisbecker
2021-07-14 13:54 ` Frederic Weisbecker [this message]
2021-07-14 13:54 ` [RFC PATCH 4/6] sched/isolation: Split domain housekeeping mask from the rest Frederic Weisbecker
2021-07-14 13:54 ` [RFC PATCH 5/6] sched/isolation: Make HK_FLAG_DOMAIN mutable Frederic Weisbecker
2021-07-21 14:28   ` Vincent Donnefort
2021-07-14 13:54 ` [RFC PATCH 6/6] cpuset: Add cpuset.isolation_mask file Frederic Weisbecker
2021-07-14 16:31   ` Marcelo Tosatti
2021-07-19 13:26     ` Frederic Weisbecker
2021-07-19 15:41       ` Marcelo Tosatti
2021-07-14 16:52   ` Peter Zijlstra
2021-07-14 23:13     ` Frederic Weisbecker
2021-07-14 23:44       ` Valentin Schneider
2021-07-15  0:07         ` Frederic Weisbecker
2021-07-15  9:04       ` Peter Zijlstra
2021-07-19 13:17         ` Frederic Weisbecker
2021-07-16 18:02 ` [RFC PATCH 0/6] cpuset: Allow to modify isolcpus through cpuset Waiman Long
2021-07-19 13:57   ` Frederic Weisbecker

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