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    SubjectRe: [PATCH 0/2] pipe: Fixes [ver #2]
    Date
    Linus Torvalds <torvalds@linux-foundation.org> wrote:

    > I think I found it.
    >
    > TOTALLY UNTESTED patch appended. It's whitespace-damaged and may be
    > completely wrong. And might not fix it.
    >
    > The first hunk is purely syntactic sugar - use the normal head/tail
    > order. The second/third hunk is what I think fixes the problem:
    > iter_file_splice_write() had the same buggy "let's cache
    > head/tail/mask" pattern as pipe_write() had.
    >
    > You can't cache them over a 'pipe_wait()' that drops the pipe lock,
    > and there's one in splice_from_pipe_next().

    That seems to fix it.

    Tested-by: David Howells <dhowells@redhat.com>

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