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Commit 02f3939e authored by Shaohua Li's avatar Shaohua Li Committed by Jens Axboe
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block: makes bio_split support bio without data 



discard bio hasn't data attached. We hit a BUG_ON with such bio. This makes
bio_split works for such bio.

Signed-off-by: default avatarShaohua Li <shli@fusionio.com>
Signed-off-by: default avatarNeilBrown <neilb@suse.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 232f1b51
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