From: Nitesh Narayan Lal <nitesh@redhat.com>
To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
linux-pci@vger.kernel.org, intel-wired-lan@lists.osuosl.org,
frederic@kernel.org, mtosatti@redhat.com, sassmann@redhat.com,
jesse.brandeburg@intel.com, lihong.yang@intel.com,
helgaas@kernel.org, nitesh@redhat.com,
jeffrey.t.kirsher@intel.com, jacob.e.keller@intel.com,
jlelli@redhat.com, hch@infradead.org, bhelgaas@google.com,
mike.marciniszyn@intel.com, dennis.dalessandro@intel.com,
thomas.lendacky@amd.com, jiri@nvidia.com, mingo@redhat.com,
peterz@infradead.org, juri.lelli@redhat.com,
vincent.guittot@linaro.org, lgoncalv@redhat.com
Subject: [PATCH v3 2/4] sched/isolation: Extend nohz_full to isolate managed IRQs
Date: Fri, 25 Sep 2020 14:26:52 -0400 [thread overview]
Message-ID: <20200925182654.224004-3-nitesh@redhat.com> (raw)
In-Reply-To: <20200925182654.224004-1-nitesh@redhat.com>
Extend nohz_full feature set to include isolation from managed IRQS. This
is required specifically for setups that only uses nohz_full and still
requires isolation for maintaining lower latency for the listed CPUs.
Suggested-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Nitesh Narayan Lal <nitesh@redhat.com>
---
kernel/sched/isolation.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kernel/sched/isolation.c b/kernel/sched/isolation.c
index 5a6ea03f9882..9df9598a9e39 100644
--- a/kernel/sched/isolation.c
+++ b/kernel/sched/isolation.c
@@ -141,7 +141,7 @@ static int __init housekeeping_nohz_full_setup(char *str)
unsigned int flags;
flags = HK_FLAG_TICK | HK_FLAG_WQ | HK_FLAG_TIMER | HK_FLAG_RCU |
- HK_FLAG_MISC | HK_FLAG_KTHREAD;
+ HK_FLAG_MISC | HK_FLAG_KTHREAD | HK_FLAG_MANAGED_IRQ;
return housekeeping_setup(str, flags);
}
--
2.18.2
next prev parent reply other threads:[~2020-09-25 18:27 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-25 18:26 [PATCH v3 0/4] isolation: limit msix vectors to housekeeping CPUs Nitesh Narayan Lal
2020-09-25 18:26 ` [PATCH v3 1/4] sched/isolation: API to get number of " Nitesh Narayan Lal
2020-09-25 18:26 ` Nitesh Narayan Lal [this message]
2020-09-25 18:26 ` [PATCH v3 3/4] i40e: Limit msix vectors to " Nitesh Narayan Lal
2020-09-25 18:26 ` [PATCH v3 4/4] PCI: Limit pci_alloc_irq_vectors() " Nitesh Narayan Lal
2020-09-25 20:23 ` Bjorn Helgaas
2020-09-25 21:38 ` Nitesh Narayan Lal
2020-09-25 23:18 ` Nitesh Narayan Lal
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