swp_entry

Name:Store a type+offset into a swp_entry_t in an arch-independent format

Proto:static inline swp_entry_t swp_entry(unsigned long type, unsigned long offset)

Type:swp_entry_t

Parameter:

Type	Parameter	Name
unsigned long	type
unsigned long	offset

33

val = type << swapcache pages are stored in the swapper_space radix tree | offset & SWP_OFFSET_MASK

34

Return ret

**Caller**
Name	Describe
alloc_swapdev_block	alloc_swapdev_block - allocate a swap page and register that it has* been allocated, so that it can be freed in case of an error.
free_all_swap_pages	_all_swap_pages - free swap pages allocated for saving image data.* It also frees the extents used to register which swap entries had been* allocated.
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.
__try_to_reclaim_swap	rns 1 if swap entry is freed
scan_swap_map_slots
swap_alloc_cluster
get_swap_page_of_type	The only caller of this function is now suspend routine
try_to_unuse	If the boolean frontswap is true, only unuse pages_to_unuse pages;* pages_to_unuse==0 means all pages; ignored if frontswap is false
generic_max_swapfile_size	Find out how many pages are allowed for a single swap device
zswap_frontswap_store	attempts to compress and store an single page

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