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Diffstat (limited to 'mm/slub.c')
-rw-r--r--mm/slub.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/mm/slub.c b/mm/slub.c
index 6efcbf79fd2d..18f18fbbd97e 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -3631,6 +3631,7 @@ static void __slab_free(struct kmem_cache *s, struct slab *slab,
unsigned long counters;
struct kmem_cache_node *n = NULL;
unsigned long flags;
+ bool on_node_partial;
stat(s, FREE_SLOWPATH);
@@ -3678,6 +3679,7 @@ static void __slab_free(struct kmem_cache *s, struct slab *slab,
*/
spin_lock_irqsave(&n->list_lock, flags);
+ on_node_partial = slab_test_node_partial(slab);
}
}
@@ -3706,6 +3708,15 @@ static void __slab_free(struct kmem_cache *s, struct slab *slab,
return;
}
+ /*
+ * This slab was partially empty but not on the per-node partial list,
+ * in which case we shouldn't manipulate its list, just return.
+ */
+ if (prior && !on_node_partial) {
+ spin_unlock_irqrestore(&n->list_lock, flags);
+ return;
+ }
+
if (unlikely(!new.inuse && n->nr_partial >= s->min_partial))
goto slab_empty;