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-rw-r--r--mm/slub.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 17dc00e33115..eae5bb47b22f 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3175,6 +3175,15 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
if (unlikely(!object)) {
/*
+ * We may have removed an object from c->freelist using
+ * the fastpath in the previous iteration; in that case,
+ * c->tid has not been bumped yet.
+ * Since ___slab_alloc() may reenable interrupts while
+ * allocating memory, we should bump c->tid now.
+ */
+ c->tid = next_tid(c->tid);
+
+ /*
* Invoking slow path likely have side-effect
* of re-populating per CPU c->freelist
*/