From: Thomas Gleixner <tglx@linutronix.de>
To: Nitesh Lal <nilal@redhat.com>
Cc: Jesse Brandeburg <jesse.brandeburg@intel.com>,
"frederic\@kernel.org" <frederic@kernel.org>,
"juri.lelli\@redhat.com" <juri.lelli@redhat.com>,
Marcelo Tosatti <mtosatti@redhat.com>,
abelits@marvell.com, Robin Murphy <robin.murphy@arm.com>,
"linux-kernel\@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"linux-api\@vger.kernel.org" <linux-api@vger.kernel.org>,
"bhelgaas\@google.com" <bhelgaas@google.com>,
"linux-pci\@vger.kernel.org" <linux-pci@vger.kernel.org>,
"rostedt\@goodmis.org" <rostedt@goodmis.org>,
"mingo\@kernel.org" <mingo@kernel.org>,
"peterz\@infradead.org" <peterz@infradead.org>,
"davem\@davemloft.net" <davem@davemloft.net>,
"akpm\@linux-foundation.org" <akpm@linux-foundation.org>,
"sfr\@canb.auug.org.au" <sfr@canb.auug.org.au>,
"stephen\@networkplumber.org" <stephen@networkplumber.org>,
"rppt\@linux.vnet.ibm.com" <rppt@linux.vnet.ibm.com>,
"jinyuqi\@huawei.com" <jinyuqi@huawei.com>,
"zhangshaokun\@hisilicon.com" <zhangshaokun@hisilicon.com>,
netdev@vger.kernel.org, chris.friesen@windriver.com
Subject: Re: [Patch v4 1/3] lib: Restrict cpumask_local_spread to houskeeping CPUs
Date: Fri, 30 Apr 2021 20:21:33 +0200 [thread overview]
Message-ID: <87sg37eiqa.ffs@nanos.tec.linutronix.de> (raw)
In-Reply-To: <CAFki+LmmRyvOkWoNNLk5JCwtaTnabyaRUKxnS+wyAk_kj8wzyw@mail.gmail.com>
Nitesh,
On Fri, Apr 30 2021 at 12:14, Nitesh Lal wrote:
> Based on this analysis and the fact that with your re-work the interrupts
> seems to be naturally spread across the CPUs, will it be safe to revert
> Jesse's patch
>
> e2e64a932 genirq: Set initial affinity in irq_set_affinity_hint()
>
> as it overwrites the previously set IRQ affinity mask for some of the
> devices?
That's a good question. My gut feeling says yes.
> IMHO if we think that this patch is still solving some issue other than
> what Jesse has mentioned then perhaps we should reproduce that and fix it
> directly from the request_irq code path.
Makes sense.
Thanks,
tglx
next prev parent reply other threads:[~2021-04-30 18:21 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-25 22:34 [PATCH v4 0/3] Preventing job distribution to isolated CPUs Nitesh Narayan Lal
2020-06-25 22:34 ` [Patch v4 1/3] lib: Restrict cpumask_local_spread to houskeeping CPUs Nitesh Narayan Lal
2020-06-29 16:11 ` Nitesh Narayan Lal
2020-07-01 0:32 ` Andrew Morton
2020-07-01 0:47 ` Nitesh Narayan Lal
2021-01-27 11:57 ` Robin Murphy
2021-01-27 12:19 ` Marcelo Tosatti
2021-01-27 12:36 ` Robin Murphy
2021-01-27 13:09 ` Marcelo Tosatti
2021-01-27 13:49 ` Robin Murphy
2021-01-27 14:16 ` Nitesh Narayan Lal
2021-01-28 15:56 ` Thomas Gleixner
2021-01-28 16:33 ` Marcelo Tosatti
[not found] ` <02ac9d85-7ddd-96da-1252-4663feea7c9f@marvell.com>
2021-02-01 17:50 ` [EXT] " Marcelo Tosatti
2021-01-28 16:02 ` Thomas Gleixner
2021-01-28 16:59 ` Marcelo Tosatti
2021-01-28 17:35 ` Nitesh Narayan Lal
2021-01-28 20:01 ` Thomas Gleixner
[not found] ` <d2a4dc97-a9ed-e0e7-3b9c-c56ae46f6608@redhat.com>
[not found] ` <20210129142356.GB40876@fuller.cnet>
2021-01-29 17:34 ` [EXT] " Alex Belits
[not found] ` <18584612-868c-0f88-5de2-dc93c8638816@redhat.com>
2021-02-05 19:56 ` Thomas Gleixner
2021-02-04 18:15 ` Marcelo Tosatti
2021-02-04 18:47 ` Nitesh Narayan Lal
2021-02-04 19:06 ` Marcelo Tosatti
2021-02-04 19:17 ` Nitesh Narayan Lal
2021-02-05 22:23 ` Thomas Gleixner
2021-02-05 22:26 ` Thomas Gleixner
2021-02-07 0:43 ` Nitesh Narayan Lal
2021-02-11 15:55 ` Nitesh Narayan Lal
2021-03-04 18:15 ` Nitesh Narayan Lal
[not found] ` <faa8d84e-db67-7fbe-891e-f4987f106b20@marvell.com>
2021-03-04 23:23 ` [EXT] " Nitesh Narayan Lal
2021-04-06 17:22 ` Jesse Brandeburg
2021-04-07 15:18 ` Nitesh Narayan Lal
2021-04-08 18:49 ` Nitesh Narayan Lal
2021-04-14 16:11 ` Jesse Brandeburg
2021-04-15 22:11 ` Nitesh Narayan Lal
2021-04-29 21:44 ` Nitesh Lal
2021-04-30 1:48 ` Jesse Brandeburg
2021-04-30 13:10 ` Nitesh Lal
2021-04-30 7:10 ` Thomas Gleixner
2021-04-30 16:14 ` Nitesh Lal
2021-04-30 18:21 ` Thomas Gleixner [this message]
2021-04-30 21:07 ` Nitesh Lal
2021-05-01 2:21 ` Jesse Brandeburg
2021-05-03 13:15 ` Nitesh Lal
2020-06-25 22:34 ` [Patch v4 2/3] PCI: Restrict probe functions to housekeeping CPUs Nitesh Narayan Lal
2020-06-25 22:34 ` [Patch v4 3/3] net: Restrict receive packets queuing " Nitesh Narayan Lal
2020-06-26 11:14 ` Peter Zijlstra
2020-06-26 17:20 ` David Miller
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