26 static void clear_exceptional_entry(struct address_space *mapping,  in clear_exceptional_entry()  argument
33 	if (shmem_mapping(mapping))  in clear_exceptional_entry()
36 	spin_lock_irq(&mapping->tree_lock);  in clear_exceptional_entry()
42 	if (!__radix_tree_lookup(&mapping->page_tree, index, &node, &slot))  in clear_exceptional_entry()
47 	mapping->nrshadows--;  in clear_exceptional_entry()
61 	__radix_tree_delete_node(&mapping->page_tree, node);  in clear_exceptional_entry()
63 	spin_unlock_irq(&mapping->tree_lock);  in clear_exceptional_entry()
86 	invalidatepage = page->mapping->a_ops->invalidatepage;  in do_invalidatepage()
106 truncate_complete_page(struct address_space *mapping, struct page *page)  in truncate_complete_page()  argument
108 	if (page->mapping != mapping)  in truncate_complete_page()
134 invalidate_complete_page(struct address_space *mapping, struct page *page)  in invalidate_complete_page()  argument
138 	if (page->mapping != mapping)  in invalidate_complete_page()
144 	ret = remove_mapping(mapping, page);  in invalidate_complete_page()
149 int truncate_inode_page(struct address_space *mapping, struct page *page)  in truncate_inode_page()  argument
152 		unmap_mapping_range(mapping,  in truncate_inode_page()
156 	return truncate_complete_page(mapping, page);  in truncate_inode_page()
162 int generic_error_remove_page(struct address_space *mapping, struct page *page)  in generic_error_remove_page()  argument
164 	if (!mapping)  in generic_error_remove_page()
170 	if (!S_ISREG(mapping->host->i_mode))  in generic_error_remove_page()
172 	return truncate_inode_page(mapping, page);  in generic_error_remove_page()
184 	struct address_space *mapping = page_mapping(page);  in invalidate_inode_page()  local
185 	if (!mapping)  in invalidate_inode_page()
191 	return invalidate_complete_page(mapping, page);  in invalidate_inode_page()
218 void truncate_inode_pages_range(struct address_space *mapping,  in truncate_inode_pages_range()  argument
230 	cleancache_invalidate_inode(mapping);  in truncate_inode_pages_range()
231 	if (mapping->nrpages == 0 && mapping->nrshadows == 0)  in truncate_inode_pages_range()
257 	while (index < end && pagevec_lookup_entries(&pvec, mapping, index,  in truncate_inode_pages_range()
269 				clear_exceptional_entry(mapping, index, page);  in truncate_inode_pages_range()
280 			truncate_inode_page(mapping, page);  in truncate_inode_pages_range()
290 		struct page *page = find_lock_page(mapping, start - 1);  in truncate_inode_pages_range()
300 			cleancache_invalidate_page(mapping, page);  in truncate_inode_pages_range()
309 		struct page *page = find_lock_page(mapping, end);  in truncate_inode_pages_range()
313 			cleancache_invalidate_page(mapping, page);  in truncate_inode_pages_range()
331 		if (!pagevec_lookup_entries(&pvec, mapping, index,  in truncate_inode_pages_range()
358 				clear_exceptional_entry(mapping, index, page);  in truncate_inode_pages_range()
365 			truncate_inode_page(mapping, page);  in truncate_inode_pages_range()
372 	cleancache_invalidate_inode(mapping);  in truncate_inode_pages_range()
388 void truncate_inode_pages(struct address_space *mapping, loff_t lstart)  in truncate_inode_pages()  argument
390 	truncate_inode_pages_range(mapping, lstart, (loff_t)-1);  in truncate_inode_pages()
403 void truncate_inode_pages_final(struct address_space *mapping)  in truncate_inode_pages_final()  argument
415 	mapping_set_exiting(mapping);  in truncate_inode_pages_final()
422 	nrpages = mapping->nrpages;  in truncate_inode_pages_final()
424 	nrshadows = mapping->nrshadows;  in truncate_inode_pages_final()
433 		spin_lock_irq(&mapping->tree_lock);  in truncate_inode_pages_final()
434 		spin_unlock_irq(&mapping->tree_lock);  in truncate_inode_pages_final()
436 		truncate_inode_pages(mapping, 0);  in truncate_inode_pages_final()
454 unsigned long invalidate_mapping_pages(struct address_space *mapping,  in invalidate_mapping_pages()  argument
465 	while (index <= end && pagevec_lookup_entries(&pvec, mapping, index,  in invalidate_mapping_pages()
477 				clear_exceptional_entry(mapping, index, page);  in invalidate_mapping_pages()
511 invalidate_complete_page2(struct address_space *mapping, struct page *page)  in invalidate_complete_page2()  argument
516 	if (page->mapping != mapping)  in invalidate_complete_page2()
523 	spin_lock_irqsave(&mapping->tree_lock, flags);  in invalidate_complete_page2()
529 	spin_unlock_irqrestore(&mapping->tree_lock, flags);  in invalidate_complete_page2()
532 	if (mapping->a_ops->freepage)  in invalidate_complete_page2()
533 		mapping->a_ops->freepage(page);  in invalidate_complete_page2()
538 	spin_unlock_irqrestore(&mapping->tree_lock, flags);  in invalidate_complete_page2()
543 static int do_launder_page(struct address_space *mapping, struct page *page)  in do_launder_page()  argument
547 	if (page->mapping != mapping || mapping->a_ops->launder_page == NULL)  in do_launder_page()
549 	return mapping->a_ops->launder_page(page);  in do_launder_page()
563 int invalidate_inode_pages2_range(struct address_space *mapping,  in invalidate_inode_pages2_range()  argument
574 	cleancache_invalidate_inode(mapping);  in invalidate_inode_pages2_range()
577 	while (index <= end && pagevec_lookup_entries(&pvec, mapping, index,  in invalidate_inode_pages2_range()
589 				clear_exceptional_entry(mapping, index, page);  in invalidate_inode_pages2_range()
595 			if (page->mapping != mapping) {  in invalidate_inode_pages2_range()
605 					unmap_mapping_range(mapping,  in invalidate_inode_pages2_range()
615 					unmap_mapping_range(mapping,  in invalidate_inode_pages2_range()
621 			ret2 = do_launder_page(mapping, page);  in invalidate_inode_pages2_range()
623 				if (!invalidate_complete_page2(mapping, page))  in invalidate_inode_pages2_range()
635 	cleancache_invalidate_inode(mapping);  in invalidate_inode_pages2_range()
649 int invalidate_inode_pages2(struct address_space *mapping)  in invalidate_inode_pages2()  argument
651 	return invalidate_inode_pages2_range(mapping, 0, -1);  in invalidate_inode_pages2()
672 	struct address_space *mapping = inode->i_mapping;  in truncate_pagecache()  local
684 	unmap_mapping_range(mapping, holebegin, 0, 1);  in truncate_pagecache()
685 	truncate_inode_pages(mapping, newsize);  in truncate_pagecache()
686 	unmap_mapping_range(mapping, holebegin, 0, 1);  in truncate_pagecache()
780 	struct address_space *mapping = inode->i_mapping;  in truncate_pagecache_range()  local
797 		unmap_mapping_range(mapping, unmap_start,  in truncate_pagecache_range()
799 	truncate_inode_pages_range(mapping, lstart, lend);  in truncate_pagecache_range()