__percpu_ref_switch_to_atomic

Name:__percpu_ref_switch_to_atomic

Proto:static void __percpu_ref_switch_to_atomic(struct percpu_ref *ref, percpu_ref_func_t *confirm_switch)

Type:void

Parameter:

Type	Parameter	Name
struct percpu_ref *	ref
percpu_ref_func_t *	confirm_switch

175

If * The low bit of the pointer indicates whether the ref is in percpu * mode; if set, then get/put will manipulate the atomic_t. & __PERCPU_REF_ATOMIC Then

176

If confirm_switch Then confirm_switch(ref)

178

Return

182

* The low bit of the pointer indicates whether the ref is in percpu * mode; if set, then get/put will manipulate the atomic_t. |= __PERCPU_REF_ATOMIC

188

confirm_switch = If confirm_switch Else percpu_ref_noop_confirm_switch

190

percpu_ref_get - increment a percpu refcount*@ref: percpu_ref to get* Analagous to atomic_long_inc().* This function is safe to call as long as @ref is between init and exit.

191

Post an RCU callback to be invoked after the end of an RCU grace* period. But since we have but one CPU, that would be after any* quiescent state.

**Caller**
Name	Describe
__percpu_ref_switch_mode

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