Set c->node to -1 if we allocate from a debug slab instead for SlabDebug
which requires access the page struct cacheline.
Signed-off-by: Christoph Lameter <[email protected]>
---
mm/slub.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
Index: linux-2.6.23-rc3-mm1/mm/slub.c
===================================================================
--- linux-2.6.23-rc3-mm1.orig/mm/slub.c 2007-08-22 17:20:28.000000000 -0700
+++ linux-2.6.23-rc3-mm1/mm/slub.c 2007-08-22 17:20:33.000000000 -0700
@@ -1517,6 +1517,7 @@ debug:
c->page->inuse++;
c->page->freelist = object[c->offset];
+ c->node = -1;
slab_unlock(c->page);
return object;
}
@@ -1540,8 +1541,7 @@ static void __always_inline *slab_alloc(
local_irq_save(flags);
c = get_cpu_slab(s, smp_processor_id());
- if (unlikely(!c->page || !c->freelist ||
- !node_match(c, node)))
+ if (unlikely(!c->freelist || !node_match(c, node)))
object = __slab_alloc(s, gfpflags, node, addr, c);
@@ -1650,7 +1650,7 @@ static void __always_inline slab_free(st
local_irq_save(flags);
debug_check_no_locks_freed(object, s->objsize);
c = get_cpu_slab(s, smp_processor_id());
- if (likely(page == c->page && !SlabDebug(page))) {
+ if (likely(page == c->page && c->node >= 0)) {
object[c->offset] = c->freelist;
c->freelist = object;
} else
--
-
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