linux-kernel - Re: [PATCH v3 1/6] workqueue: Inherit per-process allocation flags

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Date: Wed, 22 May 2024 06:37:13 -1000
From: Tejun Heo <tj@...nel.org>
To: Håkon Bugge <haakon.bugge@...cle.com>
Cc: linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org, rds-devel@....oracle.com,
	Jason Gunthorpe <jgg@...pe.ca>, Leon Romanovsky <leon@...nel.org>,
	Saeed Mahameed <saeedm@...dia.com>,
	Tariq Toukan <tariqt@...dia.com>,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Allison Henderson <allison.henderson@...cle.com>,
	Manjunath Patil <manjunath.b.patil@...cle.com>,
	Mark Zhang <markzhang@...dia.com>,
	Chuck Lever <chuck.lever@...cle.com>,
	Shiraz Saleem <shiraz.saleem@...el.com>,
	Yang Li <yang.lee@...ux.alibaba.com>
Subject: Re: [PATCH v3 1/6] workqueue: Inherit per-process allocation flags

Hello,

On Wed, May 22, 2024 at 03:54:34PM +0200, Håkon Bugge wrote:
> --- a/include/linux/workqueue.h
> +++ b/include/linux/workqueue.h
> @@ -406,9 +406,18 @@ enum wq_flags {
>  	__WQ_DRAINING		= 1 << 16, /* internal: workqueue is draining */
>  	__WQ_ORDERED		= 1 << 17, /* internal: workqueue is ordered */
>  	__WQ_LEGACY		= 1 << 18, /* internal: create*_workqueue() */
> +	__WQ_MEMALLOC		= 1 << 19, /* internal: execute work with MEMALLOC */
> +	__WQ_MEMALLOC_NOFS      = 1 << 20, /* internal: execute work with MEMALLOC_NOFS */
> +	__WQ_MEMALLOC_NOIO      = 1 << 21, /* internal: execute work with MEMALLOC_NOIO */
> +	__WQ_MEMALLOC_NORECLAIM = 1 << 22, /* internal: execute work with MEMALLOC_NORECLAIM */
> +	__WQ_MEMALLOC_NOWARN    = 1 << 23, /* internal: execute work with MEMALLOC_NOWARN */
> +	__WQ_MEMALLOC_PIN	= 1 << 24, /* internal: execute work with MEMALLOC_PIN */

Please use a separate field w/ gfp_t. You can probably add it to
workqueue_attrs.

Thanks.

-- 
tejun