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From:   David Howells <dhowells@redhat.com>
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Subject: Re: [PATCH] splice: Fix filemap of a blockdev
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Date:   Wed, 19 Apr 2023 14:01:20 +0100
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Note that this shouldn't affect direct_splice_read() as that doesn't look at
the size of the file, but rather just keeps reading from it until the
requested amount is read, the pipe is full or ->read_iter() indicates EOF by
returning 0 (so it could work for copy-splicing from a pipe/socket/chardev
too).

David