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()
120 		account_page_cleaned(page, mapping);  in truncate_complete_page()
136 invalidate_complete_page(struct address_space *mapping, struct page *page)  in invalidate_complete_page()  argument
140 	if (page->mapping != mapping)  in invalidate_complete_page()
146 	ret = remove_mapping(mapping, page);  in invalidate_complete_page()
151 int truncate_inode_page(struct address_space *mapping, struct page *page)  in truncate_inode_page()  argument
154 		unmap_mapping_range(mapping,  in truncate_inode_page()
158 	return truncate_complete_page(mapping, page);  in truncate_inode_page()
164 int generic_error_remove_page(struct address_space *mapping, struct page *page)  in generic_error_remove_page()  argument
166 	if (!mapping)  in generic_error_remove_page()
172 	if (!S_ISREG(mapping->host->i_mode))  in generic_error_remove_page()
174 	return truncate_inode_page(mapping, page);  in generic_error_remove_page()
186 	struct address_space *mapping = page_mapping(page);  in invalidate_inode_page()  local
187 	if (!mapping)  in invalidate_inode_page()
193 	return invalidate_complete_page(mapping, page);  in invalidate_inode_page()
220 void truncate_inode_pages_range(struct address_space *mapping,  in truncate_inode_pages_range()  argument
232 	cleancache_invalidate_inode(mapping);  in truncate_inode_pages_range()
233 	if (mapping->nrpages == 0 && mapping->nrshadows == 0)  in truncate_inode_pages_range()
259 	while (index < end && pagevec_lookup_entries(&pvec, mapping, index,  in truncate_inode_pages_range()
271 				clear_exceptional_entry(mapping, index, page);  in truncate_inode_pages_range()
282 			truncate_inode_page(mapping, page);  in truncate_inode_pages_range()
292 		struct page *page = find_lock_page(mapping, start - 1);  in truncate_inode_pages_range()
302 			cleancache_invalidate_page(mapping, page);  in truncate_inode_pages_range()
311 		struct page *page = find_lock_page(mapping, end);  in truncate_inode_pages_range()
315 			cleancache_invalidate_page(mapping, page);  in truncate_inode_pages_range()
333 		if (!pagevec_lookup_entries(&pvec, mapping, index,  in truncate_inode_pages_range()
360 				clear_exceptional_entry(mapping, index, page);  in truncate_inode_pages_range()
367 			truncate_inode_page(mapping, page);  in truncate_inode_pages_range()
374 	cleancache_invalidate_inode(mapping);  in truncate_inode_pages_range()
390 void truncate_inode_pages(struct address_space *mapping, loff_t lstart)  in truncate_inode_pages()  argument
392 	truncate_inode_pages_range(mapping, lstart, (loff_t)-1);  in truncate_inode_pages()
405 void truncate_inode_pages_final(struct address_space *mapping)  in truncate_inode_pages_final()  argument
417 	mapping_set_exiting(mapping);  in truncate_inode_pages_final()
424 	nrpages = mapping->nrpages;  in truncate_inode_pages_final()
426 	nrshadows = mapping->nrshadows;  in truncate_inode_pages_final()
435 		spin_lock_irq(&mapping->tree_lock);  in truncate_inode_pages_final()
436 		spin_unlock_irq(&mapping->tree_lock);  in truncate_inode_pages_final()
438 		truncate_inode_pages(mapping, 0);  in truncate_inode_pages_final()
456 unsigned long invalidate_mapping_pages(struct address_space *mapping,  in invalidate_mapping_pages()  argument
467 	while (index <= end && pagevec_lookup_entries(&pvec, mapping, index,  in invalidate_mapping_pages()
479 				clear_exceptional_entry(mapping, index, page);  in invalidate_mapping_pages()
513 invalidate_complete_page2(struct address_space *mapping, struct page *page)  in invalidate_complete_page2()  argument
515 	if (page->mapping != mapping)  in invalidate_complete_page2()
521 	spin_lock_irq(&mapping->tree_lock);  in invalidate_complete_page2()
527 	spin_unlock_irq(&mapping->tree_lock);  in invalidate_complete_page2()
529 	if (mapping->a_ops->freepage)  in invalidate_complete_page2()
530 		mapping->a_ops->freepage(page);  in invalidate_complete_page2()
535 	spin_unlock_irq(&mapping->tree_lock);  in invalidate_complete_page2()
539 static int do_launder_page(struct address_space *mapping, struct page *page)  in do_launder_page()  argument
543 	if (page->mapping != mapping || mapping->a_ops->launder_page == NULL)  in do_launder_page()
545 	return mapping->a_ops->launder_page(page);  in do_launder_page()
559 int invalidate_inode_pages2_range(struct address_space *mapping,  in invalidate_inode_pages2_range()  argument
570 	cleancache_invalidate_inode(mapping);  in invalidate_inode_pages2_range()
573 	while (index <= end && pagevec_lookup_entries(&pvec, mapping, index,  in invalidate_inode_pages2_range()
585 				clear_exceptional_entry(mapping, index, page);  in invalidate_inode_pages2_range()
591 			if (page->mapping != mapping) {  in invalidate_inode_pages2_range()
601 					unmap_mapping_range(mapping,  in invalidate_inode_pages2_range()
611 					unmap_mapping_range(mapping,  in invalidate_inode_pages2_range()
617 			ret2 = do_launder_page(mapping, page);  in invalidate_inode_pages2_range()
619 				if (!invalidate_complete_page2(mapping, page))  in invalidate_inode_pages2_range()
631 	cleancache_invalidate_inode(mapping);  in invalidate_inode_pages2_range()
645 int invalidate_inode_pages2(struct address_space *mapping)  in invalidate_inode_pages2()  argument
647 	return invalidate_inode_pages2_range(mapping, 0, -1);  in invalidate_inode_pages2()
668 	struct address_space *mapping = inode->i_mapping;  in truncate_pagecache()  local
680 	unmap_mapping_range(mapping, holebegin, 0, 1);  in truncate_pagecache()
681 	truncate_inode_pages(mapping, newsize);  in truncate_pagecache()
682 	unmap_mapping_range(mapping, holebegin, 0, 1);  in truncate_pagecache()
776 	struct address_space *mapping = inode->i_mapping;  in truncate_pagecache_range()  local
793 		unmap_mapping_range(mapping, unmap_start,  in truncate_pagecache_range()
795 	truncate_inode_pages_range(mapping, lstart, lend);  in truncate_pagecache_range()