tree 71787e376b7aef54b48e99d15a0fc11c7cf7ee8d
parent 951bc82c53f30ec6b4c2d04a051e74ea9a89b669
author David S. Miller <davem@sunset.sfo1.dsl.speakeasy.net> 1149209245 -0700
committer David S. Miller <davem@sunset.sfo1.dsl.speakeasy.net> 1149209245 -0700

[SPARC64]: Fix D-cache corruption in mremap

If we move a mapping from one virtual address to another,
and this changes the virtual color of the mapping to those
pages, we can see corrupt data due to D-cache aliasing.

Check for and deal with this by overriding the move_pte()
macro.  Set things up so that other platforms can cleanly
override the move_pte() macro too.

Signed-off-by: David S. Miller <davem@davemloft.net>