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Date:   Sat, 20 May 2023 11:14:14 +0200
From:   Christian Brauner <brauner@kernel.org>
To:     David Howells <dhowells@redhat.com>
Cc:     Jens Axboe <axboe@kernel.dk>, Al Viro <viro@zeniv.linux.org.uk>,
        Christoph Hellwig <hch@infradead.org>,
        Matthew Wilcox <willy@infradead.org>, Jan Kara <jack@suse.cz>,
        Jeff Layton <jlayton@kernel.org>,
        David Hildenbrand <david@redhat.com>,
        Jason Gunthorpe <jgg@nvidia.com>,
        Logan Gunthorpe <logang@deltatee.com>,
        Hillf Danton <hdanton@sina.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        linux-fsdevel@vger.kernel.org, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        Christoph Hellwig <hch@lst.de>,
        Steve French <stfrench@microsoft.com>,
        John Hubbard <jhubbard@nvidia.com>
Subject: Re: [PATCH v21 01/30] splice: Fix filemap of a blockdev
Message-ID: <20230520-bioladen-mitgift-7936402c233a@brauner>
References: <20230520000049.2226926-1-dhowells@redhat.com>
 <20230520000049.2226926-2-dhowells@redhat.com>
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On Sat, May 20, 2023 at 01:00:20AM +0100, David Howells wrote:
> Fix filemap_splice_read() to use file->f_mapping->host, not file->f_inode,
> as the source of the file size because in the case of a block device,
> file->f_inode points to the block-special file (which is typically 0
> length) and not the backing store.
> 
> Fixes: 07073eb01c5f ("splice: Add a func to do a splice from a buffered file without ITER_PIPE")
> Signed-off-by: David Howells <dhowells@redhat.com>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> cc: Steve French <stfrench@microsoft.com>
> cc: Jens Axboe <axboe@kernel.dk>
> cc: Al Viro <viro@zeniv.linux.org.uk>
> cc: David Hildenbrand <david@redhat.com>
> cc: John Hubbard <jhubbard@nvidia.com>
> cc: linux-mm@kvack.org
> cc: linux-block@vger.kernel.org
> cc: linux-fsdevel@vger.kernel.org
> ---

Reviewed-by: Christian Brauner <brauner@kernel.org>