xas_error

Name:xas_error() - Return an errno stored in the xa_state.*@xas: XArray operation state.* Return: 0 if no error has been noted. A negative errno if one has.

Proto:static inline int xas_error(const struct xa_state *xas)

Type:int

Parameter:

Type	Parameter	Name
const struct xa_state *	xas

**Caller**
Name	Describe
xas_start	Starts a walk. If the @xas is already valid, we assume that it's on* the right path and just return where we've got to. If we're in an* error state, return NULL. If the index is outside the current scope
xas_create	xas_create() - Create a slot to store an entry in.@xas: XArray operation state.@allow_root: %true if we can store the entry in the root directly* Most users will not need to call this function directly, as it is called* by xas_store()
xas_create_range	xas_create_range() - Ensure that stores to this range will succeed@xas: XArray operation state. Creates all of the slots in the range covered by @xas. Sets @xas to* create single-index entries and positions it at the beginning of the* range
xas_find	xas_find() - Find the next present entry in the XArray
xas_find_marked	xas_find_marked() - Find the next marked entry in the XArray.@xas: XArray operation state.@max: Highest index to return.@mark: Mark number to search for. If the @xas has not yet been walked to an entry, return the marked entry
xas_find_conflict	xas_find_conflict() - Find the next present entry in a range.@xas: XArray operation state. The @xas describes both a range and a position within that range.* Context: Any context. Expects xa_lock to be held.
xas_result
__xa_insert	__xa_insert() - Store this entry in the XArray if no entry is present.@xa: XArray.@index: Index into array.@entry: New entry.@gfp: Memory allocation flags.* Inserting a NULL entry will store a reserved entry (like xa_reserve())* if no entry is present
xa_store_range	xa_store_range() - Store this entry at a range of indices in the XArray
__xa_alloc
ida_alloc_range	da_alloc_range() - Allocate an unused ID.@ida: IDA handle.@min: Lowest ID to allocate.@max: Highest ID to allocate.@gfp: Memory allocation flags.* Allocate an ID between @min and @max, inclusive. The allocated ID will
__check_store_iter
xa_store_many_order
check_create_range_3
check_create_range_4
__add_to_page_cache_locked
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.
grab_mapping_entry	Find page cache entry at given index. If it is a DAX entry, return it* with the entry locked. If the page cache doesn't contain an entry at* that index, add a locked empty entry.* When requesting an entry with size DAX_PMD, grab_mapping_entry() will

Function report