diff options
Diffstat (limited to 'include/linux/dax.h')
| -rw-r--r-- | include/linux/dax.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/dax.h b/include/linux/dax.h index e15357223565..b52f084aa643 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -149,6 +149,7 @@ int dax_writeback_mapping_range(struct address_space *mapping, struct dax_device *dax_dev, struct writeback_control *wbc); struct page *dax_layout_busy_page(struct address_space *mapping); +struct page *dax_layout_busy_page_range(struct address_space *mapping, loff_t start, loff_t end); dax_entry_t dax_lock_page(struct page *page); void dax_unlock_page(struct page *page, dax_entry_t cookie); #else @@ -179,6 +180,11 @@ static inline struct page *dax_layout_busy_page(struct address_space *mapping) return NULL; } +static inline struct page *dax_layout_busy_page_range(struct address_space *mapping, pgoff_t start, pgoff_t nr_pages) +{ + return NULL; +} + static inline int dax_writeback_mapping_range(struct address_space *mapping, struct dax_device *dax_dev, struct writeback_control *wbc) { |