swp_offset

类型	参数	名称
swp_entry_t	entry

**调用者**
名称	描述
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.
swap_slot_free_notify
add_to_swap_cache	add_to_swap_cache resembles add_to_page_cache_locked on swapper_space,* but sets SwapCache flag and private instead of mapping and index.
__delete_from_swap_cache	This must be called only on pages that have* been verified to be in the swap cache.
lookup_swap_cache	Lookup a swap entry in the swap cache. A found page will be returned* unlocked and with its refcount incremented - we rely on the kernel* lock getting page table operations atomic even if we drop the page* lock before returning.
__read_swap_cache_async
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.
scan_swap_map
__swap_info_get
_swap_info_get
get_swap_device	Check whether swap entry is valid in the swap device
__swap_entry_free
swap_entry_free
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.
__swap_count
swap_swapcount
swp_swapcount	How many references to @entry are currently swapped out?* This considers COUNT_CONTINUED so it returns exact answer.
swap_page_trans_huge_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.
unuse_pte_range
map_swap_entry	Use this swapdev's extent info to locate the (PAGE_SIZE) block which* corresponds to page offset for the specified swap entry.* Note that the type of this function is sector_t, but it returns page offset* into the bdev, not sector offset.
generic_max_swapfile_size	Find out how many pages are allowed for a single swap device
__swap_duplicate	Verify that a swap entry is valid and increment its swap map count.* Returns error code in following case.* - success -> 0* - swp_entry is invalid -> EINVAL* - swp_entry is migration entry -> EINVAL
__page_file_index
add_swap_count_continuation	add_swap_count_continuation - called when a swap count is duplicated* beyond SWAP_MAP_MAX, it allocates a new page and links that to the entry's* page of the original vmalloc'ed swap_map, to hold the continuation count
__frontswap_store	"Store" data from a page to frontswap and associate it with the page's* swaptype and offset
__frontswap_load	"Get" data from frontswap associated with swaptype and offset that were* specified when the data was put to frontswap and use it to fill the* specified page with data. Page must be locked and in the swap cache.
zswap_writeback_entry
zap_huge_pmd
__split_huge_pmd_locked
__split_huge_page
lookup_swap_cgroup
swap_cgroup_record	swap_cgroup_record - record mem_cgroup for a set of swap entries@ent: the first swap entry to be recorded into@id: mem_cgroup to be recorded@nr_ents: number of swap entries to be recorded Returns old value at success, 0 at failure.
hmm_vma_handle_pte
swp_entry_to_pte	Convert the arch-independent representation of a swp_entry_t into the* arch-dependent pte representation.
make_device_private_entry_read
device_private_entry_to_pfn
device_private_entry_to_page
migration_entry_to_pfn
migration_entry_to_page
make_migration_entry_read

函数逻辑报告