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block io buffers (bio)

Hi,

In bio_endio() I want to access the buffer whose transfer has been
completed. How do I do safely do this?

In bio_endio(), if I did:

bio->bi_io_vec[bio->bi_idx]->bv_page->virtual

*ignoring* highmem, would this be the start address of the completed buffer?

What about bv_offset in bio_vec?

Finally, is bio_endio() the only place that successful bio transfers end up at?


Thanks,
Bahadir

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