From: Jason Gunthorpe <jgg@ziepe.ca>
To: Daniel Wagner <dwagner@suse.de>
Cc: linux-nvme@lists.infradead.org, linux-kernel@vger.kernel.org,
Keith Busch <kbusch@kernel.org>, Jens Axboe <axboe@fb.com>,
Christoph Hellwig <hch@lst.de>, Sagi Grimberg <sagi@grimberg.me>,
Steve Wise <swise@opengridcomputing.com>,
Leon Romanovsky <leon@kernel.org>,
Potnuri Bharat Teja <bharat@chelsio.com>
Subject: Re: [PATCH] nvme: Drop WQ_MEM_RECLAIM flag from core workqueues
Date: Tue, 13 Apr 2021 10:35:12 -0300 [thread overview]
Message-ID: <20210413133512.GH227011@ziepe.ca> (raw)
In-Reply-To: <20210413085404.tzam5lprtspwcek4@beryllium.lan>
On Tue, Apr 13, 2021 at 10:54:04AM +0200, Daniel Wagner wrote:
> Hmm, I am struggling with your last statement. If a worker does an
> allocation it might block. I understand this is something which a worker
> in a WQ_MEM_RECLAIM context is not allowed to do.
>
> My aim is still to get rid of the warning triggered by the rdma
> code.
The WQ_MEM_RECLAIM is placed on a workqueue not because of what is
*inside* the work, but because of what is *waiting* on the work.
Jason
prev parent reply other threads:[~2021-04-13 13:35 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-12 12:23 [PATCH] nvme: Drop WQ_MEM_RECLAIM flag from core workqueues Daniel Wagner
2021-04-12 12:31 ` Jason Gunthorpe
2021-04-12 12:49 ` Daniel Wagner
2021-04-12 13:04 ` Jason Gunthorpe
2021-04-13 8:54 ` Daniel Wagner
2021-04-13 13:35 ` Jason Gunthorpe [this message]
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