swp_swap

函数名称：swp_swap_info

函数原型：static inline struct swap_info_struct *swp_swap_info(swp_entry_t entry)

返回类型：struct swap_info_struct

参数：

类型	参数	名称
swp_entry_t	entry

**调用者**
名称	描述
do_swap_page	We enter with non-exclusive mmap_sem (to exclude vma changes,* but allow concurrent faults), and pte mapped but not yet locked.* We return with pte unmapped and unlocked.* We return with the mmap_sem locked or unlocked in the same cases
total_swapcache_pages
swap_cluster_readahead	swap_cluster_readahead - swap in pages in hope we need them soon@entry: swap entry of this memory@gfp_mask: memory allocation flags@vmf: fault information Returns the struct page for entry and addr, after queueing swapin.

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