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block: document usage of bio iterator helpers
authorMing Lei <ming.lei@redhat.com>
Fri, 15 Feb 2019 11:13:22 +0000 (19:13 +0800)
committerJens Axboe <axboe@kernel.dk>
Fri, 15 Feb 2019 15:40:12 +0000 (08:40 -0700)
commitac4fa1d107addb2c6b21067d8945a39316a09fc8
treea7a7763070c6b45f31fab2209874b84b4a4630fftree | snapshot
parent6861428921b51113520cd47897be6c2774e4fc58commit | diff
block: document usage of bio iterator helpers

Now multi-page bvec is supported, some helpers may return page by
page, meantime some may return segment by segment, this patch
documents the usage.

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>
Documentation/block/biovecs.txt diff | blob | blame | history
Linux 6.x block layer and io_uring tree(s)