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由 Monam Agarwal 提交于
rcu_assign_pointer() ensures that the initialization of a structure is carried out before storing a pointer to that structure. However, in the case that NULL is assigned there's no structure to initialize so using RCU_INIT_POINTER instead is safe and more efficient. Signed-off-by: NMonam Agarwal <monamagarwal123@gmail.com> [rewrite commit log] Signed-off-by: NEmmanuel Grumbach <emmanuel.grumbach@intel.com>
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