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authorMing Lei <ming.lei@redhat.com>2019-02-15 14:13:22 +0300
committerJens Axboe <axboe@kernel.dk>2019-02-15 18:40:12 +0300
commitac4fa1d107addb2c6b21067d8945a39316a09fc8 (patch)
treea7a7763070c6b45f31fab2209874b84b4a4630ff /include/linux
parent6861428921b51113520cd47897be6c2774e4fc58 (diff)
downloadlinux-ac4fa1d107addb2c6b21067d8945a39316a09fc8.tar.xz
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>
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