mempolicy: remove case MPOL_INTERLEAVE from policy_zonelist()

In policy_zonelist() mode MPOL_INTERLEAVE shouldn't happen, so fall
through to BUG() instead of break to return.  I also fixed the comment.

Signed-off-by: Bob Liu <[email protected]>
Acked-by: David Rientjes <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Lee Schermerhorn <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
This commit is contained in:
Bob Liu 2010-05-24 14:32:00 -07:00 • committed by Linus Torvalds
commit 6eb27e1fdf

View file

@ -1441,15 +1441,13 @@ static struct zonelist *policy_zonelist(gfp_t gfp, struct mempolicy *policy)
/*
* Normally, MPOL_BIND allocations are node-local within the
* allowed nodemask. However, if __GFP_THISNODE is set and the
* current node is part of the mask, we use the zonelist for
* current node isn't part of the mask, we use the zonelist for
* the first node in the mask instead.
*/
if (unlikely(gfp & __GFP_THISNODE) &&
unlikely(!node_isset(nd, policy->v.nodes)))
nd = first_node(policy->v.nodes);
break;
case MPOL_INTERLEAVE: /* should not happen */
break;
default:
BUG();
}