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Date: Mon, 5 Feb 2024 17:57:58 +0100
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Subject: Re: [PATCH v5 0/4] UIO_MEM_DMA_COHERENT for cnic/bnx2/bnx2x
To: Chris Leech <cleech@redhat.com>
CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Nilesh Javali
	<njavali@marvell.com>, Christoph Hellwig <hch@lst.de>, John Meneghini
	<jmeneghi@redhat.com>, Lee Duncan <lduncan@suse.com>, Mike Christie
	<michael.christie@oracle.com>, Hannes Reinecke <hare@kernel.org>,
	<netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-scsi@vger.kernel.org>, <GR-QLogic-Storage-Upstream@marvell.com>
References: <20240201233400.3394996-1-cleech@redhat.com>
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From: Alexander Lobakin <aleksander.lobakin@intel.com>
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From: Chris Leech <cleech@redhat.com>
Date: Thu,  1 Feb 2024 15:33:56 -0800

> During bnx2i iSCSI testing we ran into page refcounting issues in the
> uio mmaps exported from cnic to the iscsiuio process, and bisected back
> to the removal of the __GFP_COMP flag from dma_alloc_coherent calls.

IIRC Jakub mentioned some time ago that he doesn't want to see
third-party userspace <-> kernel space communication in the networking
drivers, to me this looks exactly like that :z

Thanks,
Olek