prefetchw

函数名称：3dnow prefetch to get an exclusive cache line.* Useful for spinlocks to avoid one state transition in the* cache coherency protocol:

函数原型：static inline void prefetchw(const void *x)

返回类型：void

参数：

类型	参数	名称
const void *	x

**调用者**
名称	描述
queued_spin_lock_slowpath	queued_spin_lock_slowpath - acquire the queued spinlock@lock: Pointer to queued spinlock structure@val: Current value of the queued spinlock 32-bit word* (queue tail, pending bit, lock value)* fast : slow : unlock* : :* uncontended (0,0,0) -:--> (0,0,1)
cpu_map_kthread_run
__free_pages_core
slab_alloc
mpage_readpages	mpage_readpages - populate an address space with some pages & start reads against them@mapping: the address_space@pages: The address of a list_head which contains the target pages. These
spin_lock_prefetch

函数逻辑报告