From: Pekka Enberg <[email protected]>
The cache_cache object cache is used for bootstrapping, but the cache is
essentially static. It is unlikely that we ever have more than one page
allocated for it. As SLAB_NO_REAP is gone now, fix a regression by skipping
cache_cache explicitly in cache_reap().
Boot-tested with UML.
Cc: Christoph Lameter <[email protected]>
Cc: Alok Kataria <[email protected]>
Cc: Ravikiran G Thirumalai <[email protected]>
Cc: Manfred Spraul <[email protected]>
Cc: Mark Fasheh <[email protected]>
Signed-off-by: Pekka Enberg <[email protected]>
---
mm/slab.c | 4 ++++
1 file changed, 4 insertions(+)
Index: 2.6-git/mm/slab.c
===================================================================
--- 2.6-git.orig/mm/slab.c
+++ 2.6-git/mm/slab.c
@@ -3483,6 +3483,10 @@ static void cache_reap(void *unused)
struct slab *slabp;
searchp = list_entry(walk, struct kmem_cache, next);
+
+ if (searchp == &cache_cache)
+ goto next;
+
check_irq_on();
l3 = searchp->nodelists[numa_node_id()];
-
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