Revision 680bb946a1ae04fe0ff369a4965f76b48c07dc54 authored by Abhi Das on 17 November 2016, 03:44:23 UTC, committed by Al Viro on 17 November 2016, 05:00:48 UTC
iov_iter_advance() needs to decrement iter->count by the number of bytes we'd moved beyond. Normal flavours do that, but ITER_PIPE doesn't and ITER_PIPE generic_file_read_iter() for O_DIRECT files ends up with a bogus fallback to page cache read, resulting in incorrect values for file offset and bytes read. Signed-off-by: Abhi Das <adas@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
1 parent 4a59015
.get_maintainer.ignore
Christoph Hellwig <hch@lst.de>
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