3.18.18-rt16-rc1 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
This approach is broken with SLAB_DESTROY_BY_RCU allocations.
Reported by Steven Rostedt and Koehrer Mathias.
Cc: stable-rt@xxxxxxxxxxxxxxx
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
---
mm/slub.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index 72bb06beaabc..534609a0326a 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1376,10 +1376,8 @@ static void setup_object(struct kmem_cache *s, struct page *page,
void *object)
{
setup_object_debug(s, page, object);
-#ifndef CONFIG_PREEMPT_RT_FULL
if (unlikely(s->ctor))
s->ctor(object);
-#endif
}
static struct page *new_slab(struct kmem_cache *s, gfp_t flags, int node)
@@ -2501,10 +2499,6 @@ redo:
if (unlikely(gfpflags & __GFP_ZERO) && object)
memset(object, 0, s->object_size);
-#ifdef CONFIG_PREEMPT_RT_FULL
- if (unlikely(s->ctor) && object)
- s->ctor(object);
-#endif
slab_post_alloc_hook(s, gfpflags, object);
--
2.1.4
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