[PATCH RT 1/6] Revert "slub: delay ctor until the object is requested"
From: Steven Rostedt <rostedt@goodmis.org>
Date: 2015-08-07 14:01:27
Also in:
lkml
Subsystem:
memory management, slab allocator, the rest · Maintainers:
Andrew Morton, Vlastimil Babka, Harry Yoo, Linus Torvalds
3.12.44-rt62-rc1 stable review patch. If anyone has any objections, please let me know. ------------------ From: Sebastian Andrzej Siewior <bigeasy@linutronix.de> This approach is broken with SLAB_DESTROY_BY_RCU allocations. Reported by Steven Rostedt and Koehrer Mathias. Cc: stable-rt@vger.kernel.org Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> --- mm/slub.c | 6 ------ 1 file changed, 6 deletions(-)
diff --git a/mm/slub.c b/mm/slub.c
index 90154580b304..b982cc52d454 100644
--- a/mm/slub.c
+++ b/mm/slub.c@@ -1363,10 +1363,8 @@ 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)
@@ -2470,10 +2468,6 @@ 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