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block: bounce: don't access bio->bi_io_vec in copy_to_high_bio_irq
authorMing Lei <ming.lei@redhat.com>
Mon, 18 Dec 2017 12:22:07 +0000 (20:22 +0800)
committerJens Axboe <axboe@kernel.dk>
Sat, 6 Jan 2018 16:18:00 +0000 (09:18 -0700)
commit3c892a098b0bfa3e571f1f0d2a7e72fbaeea691a
tree93a2f8c318cf22449587d8c3e9a1df6d52a4cc10tree | snapshot
parent7891f05cbf4944a5436491d66de2be7533089aeacommit | diff
block: bounce: don't access bio->bi_io_vec in copy_to_high_bio_irq

Firstly this patch introduces BVEC_ITER_ALL_INIT for iterating one bio
from start to end.

As we need to support multipage bvecs, don't access bio->bi_io_vec
in copy_to_high_bio_irq(), and just use the standard iterator for that.

Signed-off-by: Ming Lei <ming.lei@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/bounce.c diff | blob | blame | history
include/linux/bvec.h diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)