_swap_info_get

Name:_swap_info_get

Proto:static struct swap_info_struct *_swap_info_get(swp_entry_t entry)

Type:struct swap_info_struct

Parameter:

Type	Parameter	Name
swp_entry_t	entry

1137

p = __swap_info_get(entry)

1138

If Not p Then Go to out

1140

If Not vmalloc'ed array of usage counts [Extract the `offset' field from a swp_entry_t. The swp_entry_t is in* arch-independent format] Then Go to bad_free

1142

Return p

1144

1145

pr_err("swap_info_get: %s%08lx\n", Unused_offset, val)

1146

Go to out

1147

out :

1148

Return NULL

**Caller**
Name	Describe
swap_info_get
swap_info_get_cont
swap_free	Caller has made sure that the swap device corresponding to entry* is still around or has not been recycled.
put_swap_page	Called after dropping swapcache to decrease refcnt to swap entries.
page_swapcount	How many references to page are currently swapped out?* This does not give an exact answer when swap count is continued,* but does include the high COUNT_CONTINUED flag to allow for that.
swp_swapcount	How many references to @entry are currently swapped out?* This considers COUNT_CONTINUED so it returns exact answer.
page_swapped
page_trans_huge_map_swapcount
free_swap_and_cache	Free the swap entry like above, but also try to* free the page cache entry if it is the last user.

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