dax_mapping

Name:dax_mapping

Proto:static inline bool dax_mapping(struct address_space *mapping)

Type:bool

Parameter:

Type	Parameter	Name
struct address_space *	mapping

239

Return host && IS_DAX(host)

**Caller**
Name	Describe
mapping_needs_writeback	Returns true if writeback might be needed or already in progress.
truncate_exceptional_pvec_entries	Unconditionally remove exceptional entries. Usually called from truncate* path. Note that the pagevec may be altered by this function by removing* exceptional entries similar to what pagevec_remove_exceptionals does.
invalidate_exceptional_entry	Invalidate exceptional entry if easily possible. This handles exceptional* entries for invalidate_inode_pages().
invalidate_exceptional_entry2	Invalidate exceptional entry if clean. This handles exceptional entries for* invalidate_inode_pages2() so for DAX it evicts only clean entries.
invalidate_inode_pages2_range	validate_inode_pages2_range - remove range of pages from an address_space@mapping: the address_space@start: the page offset 'from' which to invalidate@end: the page offset 'to' which to invalidate (inclusive) Any pages which are found to be mapped
__remove_mapping	Same as remove_mapping, but if the page is removed from the mapping, it* gets returned with a refcount of 0.
dax_lock_page	dax_lock_mapping_entry - Lock the DAX entry corresponding to a page@page: The page whose entry we want to lock Context: Process context.* Return: A cookie to pass to dax_unlock_page() or 0 if the entry could* not be locked.
dax_layout_busy_page	dax_layout_busy_page - find first pinned page in @mapping@mapping: address space to scan for a page with ref count > 1 DAX requires ZONE_DEVICE mapped pages. These pages are never* 'onlined' to the page allocator so they are considered idle when

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