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Jens Axboe authored
Make sure that a bio doesn't contain NULL pages in the front of its vec, if a device bounces a bio that doesn't start from 0. Problem noted by Mark Haverkamp. Signed-off-by: Jens Axboe <axboe@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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