[PARISC] slub: fix panic with DISCONTIGMEM

Slub makes assumptions about page_to_nid() which are violated by
DISCONTIGMEM and !NUMA.  This violation results in a panic because
page_to_nid() can be non-zero for pages in the discontiguous ranges and
this leads to a null return by get_node().  The assertion by the
maintainer is that DISCONTIGMEM should only be allowed when NUMA is also
defined.  However, at least six architectures: alpha, ia64, m32r, m68k,
mips, parisc violate this.  The panic is a regression against slab, so
just mark slub broken in the problem configuration to prevent users
reporting these panics.

Cc: [email protected]
Acked-by: David Rientjes <[email protected]>
Acked-by: Pekka Enberg <[email protected]>
Signed-off-by: James Bottomley <[email protected]>

0 files changed, 0 insertions, 0 deletions