static inline struct stable_node *alloc_stable_node(void)
{
- return kmem_cache_alloc(stable_node_cache, GFP_KERNEL);
+ /*
+ * The allocation can take too long with GFP_KERNEL when memory is under
+ * pressure, which may lead to hung task warnings. Adding __GFP_HIGH
+ * grants access to memory reserves, helping to avoid this problem.
+ */
+ return kmem_cache_alloc(stable_node_cache, GFP_KERNEL | __GFP_HIGH);
}
static inline void free_stable_node(struct stable_node *stable_node)