summaryrefslogtreecommitdiff
path: root/fs/xfs
diff options
context:
space:
mode:
authorMing Lei <ming.lei@redhat.com>2019-02-15 19:13:12 +0800
committerJens Axboe <axboe@kernel.dk>2019-02-15 08:40:11 -0700
commitdcebd755926b0f39dd1e3ef75bd3b46943400df0 (patch)
tree922b2370aa43de5b73e1b4f57c4267fd48b84de9 /fs/xfs
parentd18d91740ad22e9d7998884c4d80523d0ba95ddf (diff)
block: use bio_for_each_bvec() to compute multi-page bvec count
First it is more efficient to use bio_for_each_bvec() in both blk_bio_segment_split() and __blk_recalc_rq_segments() to compute how many multi-page bvecs there are in the bio. Secondly once bio_for_each_bvec() is used, the bvec may need to be splitted because its length can be very longer than max segment size, so we have to split the big bvec into several segments. Thirdly when splitting multi-page bvec into segments, the max segment limit may be reached, so the bio split need to be considered under this situation too. Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Omar Sandoval <osandov@fb.com> Signed-off-by: Ming Lei <ming.lei@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'fs/xfs')
0 files changed, 0 insertions, 0 deletions