creating scatter gather lists

["Ice Cold" <iscsiet@xxxxxxxxx>]

In a character driver i need to create a scatter gather list for a
buffer which is passed by userspace, this buffer is actually a
continouse buffer (physically & virtually) since it has been reserved
at boot.

In the char driver i want ot be able to create scatter gather list for
this buffer, but for that i need a list of page structs which describe
this buffer, how can i do this.

any ideas?

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