From: Pavel Machek <pavel@denx.de>
To: Sasha Levin <sashal@kernel.org>
Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org,
Tejun Heo <tj@kernel.org>
Subject: Re: [PATCH AUTOSEL 4.19 12/14] workqueue: Call wq_update_unbound_numa() on all CPUs in NUMA node on CPU hotplug
Date: Mon, 11 Sep 2023 11:57:47 +0200 [thread overview]
Message-ID: <ZP7kmzEAizx8MU/Z@duo.ucw.cz> (raw)
In-Reply-To: <20230909004045.3581014-12-sashal@kernel.org>
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Hi!
> When a CPU went online or offline, wq_update_unbound_numa() was called only
> on the CPU which was going up or down. This works fine because all CPUs on
> the same NUMA node share the same pool_workqueue slot - one CPU updating it
> updates it for everyone in the node.
>
> However, future changes will make each CPU use a separate pool_workqueue
> even when they're sharing the same worker_pool, which requires updating
> pool_workqueue's for all CPUs which may be sharing the same pool_workqueue
> on hotplug.
Yes, but we are not porting those future changes to stable, right?
Please drop.
BR,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
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next prev parent reply other threads:[~2023-09-11 22:06 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-09 0:40 [PATCH AUTOSEL 4.19 01/14] media: dvb-usb-v2: af9035: Fix null-ptr-deref in af9035_i2c_master_xfer Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 02/14] media: dw2102: Fix null-ptr-deref in dw2102_i2c_transfer() Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 03/14] media: af9005: Fix null-ptr-deref in af9005_i2c_xfer Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 04/14] media: anysee: fix null-ptr-deref in anysee_master_xfer Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 05/14] media: az6007: Fix null-ptr-deref in az6007_i2c_xfer() Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 06/14] iio: core: Use min() instead of min_t() to make code more robust Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 07/14] media: tuners: qt1010: replace BUG_ON with a regular error Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 08/14] media: pci: cx23885: replace BUG with error return Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 09/14] usb: gadget: fsl_qe_udc: validate endpoint index for ch9 udc Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 10/14] scsi: target: iscsi: Fix buffer overflow in lio_target_nacl_info_show() Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 11/14] serial: cpm_uart: Avoid suspicious locking Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 12/14] workqueue: Call wq_update_unbound_numa() on all CPUs in NUMA node on CPU hotplug Sasha Levin
2023-09-11 9:57 ` Pavel Machek [this message]
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 13/14] media: pci: ipu3-cio2: Initialise timing struct to avoid a compiler warning Sasha Levin
2023-09-09 0:40 ` [PATCH AUTOSEL 4.19 14/14] kobject: Add sanity check for kset->kobj.ktype in kset_register() Sasha Levin
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