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Christoph Hellwig authored
Use pread instead of lseek + read in preparation of using the qemu block API. Note that dmg actually uses the implicit file offset a lot in dmg_open, and we had to replace it with an offset variable. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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