函数逻辑报告

函数名称：This is a useful helper function for locking the anon_vma root as* we traverse the vma->anon_vma_chain, looping over anon_vma's that* have the same vma.* Such anon_vma's should have the same root, so you'd expect to see

函数原型：static inline struct anon_vma *lock_anon_vma_root(struct anon_vma *root, struct anon_vma *anon_vma)

返回类型：struct anon_vma

参数：