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(parent: 22391ac) | patch
block: rewrite blk_bvec_map_sg to avoid a nth_page call
authorChristoph Hellwig <hch@lst.de>
Thu, 11 Apr 2019 06:23:27 +0000 (08:23 +0200)
committerJens Axboe <axboe@kernel.dk>
Fri, 12 Apr 2019 15:06:36 +0000 (09:06 -0600)
commit8a96a0e408102fb7aa73d8aa0b5e2219cfd51e55
treea62d8c0f583ee464e40b5a41fae7cd4b891b7f31tree | snapshot
parent22391ac30ab9cc2ba610bf7ea2244840b83c8017commit | diff
block: rewrite blk_bvec_map_sg to avoid a nth_page call

The offset in scatterlists is allowed to be larger than the page size,
so don't go to great length to avoid that case and simplify the
arithmetics.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Ming Lei <ming.lei@redhat.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
block/blk-merge.c diff | blob | history
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