Commit 8eac563c1c3a2047083022357ae63722b19e4e08

Authored by Andi Kleen
Committed by Linus Torvalds
1 parent 7137c6bd45

thp: fix interleaving for transparent hugepages

The THP code didn't pass the correct interleaving shift to the memory
policy code.  Fix this here by adjusting for the order.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Acked-by: Andrea Arcangeli <aarcange@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

... ... @@ -1830,7 +1830,7 @@
1830 1830 if (unlikely(pol->mode == MPOL_INTERLEAVE)) {
1831 1831 unsigned nid;
1832 1832  
1833   - nid = interleave_nid(pol, vma, addr, PAGE_SHIFT);
  1833 + nid = interleave_nid(pol, vma, addr, PAGE_SHIFT + order);
1834 1834 mpol_cond_put(pol);
1835 1835 page = alloc_page_interleave(gfp, order, nid);
1836 1836 put_mems_allowed();