tree d11b87a3087bb42159cecc05a7c8fbbd3ab3219a
parent 22f9cde3401077ea450b69bf9b0bba373e12e454
author Jan Beulich <JBeulich@suse.com> 1537863217 -0600
committer David S. Miller <davem@davemloft.net> 1537897174 -0700

xen-netback: handle page straddling in xenvif_set_hash_mapping()

There's no guarantee that the mapping array doesn't cross a page
boundary. Use a second grant copy operation if necessary.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Acked-by: Wei Liu <wei.liu2@citrix.com>
Reviewed-by: Paul Durrant <paul.durrant@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>