Hi all, I tried "memcpy","__copy_to_user",and "__copy_to_user_inatomic",etc. The destination is BIO's bio_vec->page (the page should be in userspace), the source is a page of my modules; I get the addresses of the both pages from kmap() or kmap_atomic() then pass to "memcpy" or "__copy_to_user" or "__copy_to_user_inatomic". If the method can work, the buffer of userspace process will have the context of the page of my module. There is a problem that the context of buffer is incomplete when first run, and the problem will disappear when run more time. How to copy a page to another page completely? THX - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
