From: Kaitao Cheng <[email protected]> dax_layout_busy_page() used to let filesystems scan an entire DAX mapping for pinned pages. All callers now use dax_break_layout(), which also handles waiting for busy pages and deleting DAX mapping entries once the range becomes idle.
The remaining function is only a wrapper around dax_layout_busy_page_range() and has no in-tree users. Remove it together with its declaration, !CONFIG_FS_DAX stub, and exported symbol. Signed-off-by: Kaitao Cheng <[email protected]> --- fs/dax.c | 6 ------ include/linux/dax.h | 6 ------ 2 files changed, 12 deletions(-) diff --git a/fs/dax.c b/fs/dax.c index dad4efea7964..1e19e4a354ce 100644 --- a/fs/dax.c +++ b/fs/dax.c @@ -841,12 +841,6 @@ struct page *dax_layout_busy_page_range(struct address_space *mapping, } EXPORT_SYMBOL_GPL(dax_layout_busy_page_range); -struct page *dax_layout_busy_page(struct address_space *mapping) -{ - return dax_layout_busy_page_range(mapping, 0, LLONG_MAX); -} -EXPORT_SYMBOL_GPL(dax_layout_busy_page); - static int __dax_invalidate_entry(struct address_space *mapping, pgoff_t index, bool trunc) { diff --git a/include/linux/dax.h b/include/linux/dax.h index fe6c3ded1b50..05e59e45a1c2 100644 --- a/include/linux/dax.h +++ b/include/linux/dax.h @@ -155,7 +155,6 @@ int dax_writeback_mapping_range(struct address_space *mapping, struct dax_device *dax_dev, struct writeback_control *wbc); int dax_folio_reset_order(struct folio *folio); -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_folio(struct folio *folio); void dax_unlock_folio(struct folio *folio, dax_entry_t cookie); @@ -173,11 +172,6 @@ static inline int fs_dax_get(struct dax_device *dax_dev, void *holder, { return -EOPNOTSUPP; } -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; -- 2.50.1 (Apple Git-155)
