Messages in this thread | | | Date | Tue, 26 Jun 2007 12:10:56 -0700 (PDT) | From | Christoph Lameter <> | Subject | Re: [PATCH] slob: poor man's NUMA support. |
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On Tue, 26 Jun 2007, Nish Aravamudan wrote:
> > No. alloc_pages follows memory policy. alloc_pages_node does not. One of > > the reasons that I want a new memory policy layer are these kinds of > > strange uses. > > What would break by changing, in alloc_pages_node() > > if (nid < 0) > nid = numa_node_id(); > > to > > if (nid < 0) > return alloc_pages_current(gfp_mask, order); > > beyond needing to make alloc_pages_current() defined if !NUMA too.
It would make alloc_pages_node obey memory policies instead of only following cpuset constraints. An a memory policy may redirect the allocation from the local node ;-).
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