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Date: Mon, 5 Oct 2026 11:11:11 +0200
From: Christoph Hellwig <hch@lst.de>
To: Pavel Begunkov <asml.silence@gmail.com>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-media@vger.kernel.org, dri-devel@lists.freedesktop.org,
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Subject: Re: [PATCH v7 05/13] block: add dma-buf support for raw bdev
Message-ID: <20261005091111.GB10727@lst.de>
References: <cover.1790602223.git.asml.silence@gmail.com> <a6b81e65b1f09b6ed1f71f294e5a94896ea1ead7.1790602223.git.asml.silence@gmail.com>
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On Mon, Sep 28, 2026 at 02:32:21PM +0100, Pavel Begunkov wrote:
> Add a simple proxy implementation of init_dma_buf_io_ctx() forwarding
> the call to a new struct block_device_operations operation. Also reject
> dma-buf backed iterators for buffered IO.
> 
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> [pavel: reject dma-buf without O_DIRECT]
> Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>

The Sashiko report about the errno on fallback here looks real,
and is probably easily fixed by setting a proper errno.