dax_is_locked

Name:dax_is_locked

Proto:static bool dax_is_locked(void *entry)

Type:bool

Parameter:

Type	Parameter	Name
void *	entry

95

Return xa_to_value() - Get value stored in an XArray entry.*@entry: XArray entry.* Context: Any context.* Return: The value stored in the XArray entry. & DAX_LOCKED

**Caller**
Name	Describe
get_unlocked_entry	Look up entry in page cache, wait for it to become unlocked if it* is a DAX entry and return it. The caller must subsequently call* put_unlocked_entry() if it did not lock the entry or dax_unlock_entry()* if it did
dax_unlock_entry	We used the xa_state to get the entry, but then we locked the entry and* dropped the xa_lock, so we know the xa_state is stale and must be reset* before use.
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
dax_writeback_one

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