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authorMing Lei <tom.leiming@gmail.com>2016-11-22 08:57:21 -0700
committerJens Axboe <axboe@fb.com>2016-11-22 08:57:21 -0700
commit3a83f4677539bce8eaa2bca9ee9c20e172d7ab04 (patch)
treeedb5ffeed2c07c342bd6d9adb0180fab472c1666 /block/genhd.c
parent9a794fb9bddeda0b8c8c13858038318f3cbd4b7e (diff)
downloadlinux-3a83f4677539bce8eaa2bca9ee9c20e172d7ab04.tar.bz2
block: bio: pass bvec table to bio_init()
Some drivers often use external bvec table, so introduce this helper for this case. It is always safe to access the bio->bi_io_vec in this way for this case. After converting to this usage, it will becomes a bit easier to evaluate the remaining direct access to bio->bi_io_vec, so it can help to prepare for the following multipage bvec support. Signed-off-by: Ming Lei <tom.leiming@gmail.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Fixed up the new O_DIRECT cases. Signed-off-by: Jens Axboe <axboe@fb.com>
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