28 static int afs_fill_page(struct afs_vnode *vnode, struct key *key,  in afs_fill_page()  argument
38 	if (pos >= vnode->vfs_inode.i_size) {  in afs_fill_page()
59 	ret = afs_fetch_data(vnode, key, req);  in afs_fill_page()
65 			set_bit(AFS_VNODE_DELETED, &vnode->flags);  in afs_fill_page()
81 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));  in afs_write_begin()  local
91 	       vnode->fid.vid, vnode->fid.vnode, index, from, to);  in afs_write_begin()
103 		ret = afs_fill_page(vnode, key, pos & PAGE_MASK, PAGE_SIZE, page);  in afs_write_begin()
130 			trace_afs_page_dirty(vnode, tracepoint_string("alrdy"),  in afs_write_begin()
138 		if (!test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags) &&  in afs_write_begin()
152 	trace_afs_page_dirty(vnode, tracepoint_string("begin"),  in afs_write_begin()
185 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));  in afs_write_end()  local
191 	       vnode->fid.vid, vnode->fid.vnode, page->index);  in afs_write_end()
195 	i_size = i_size_read(&vnode->vfs_inode);  in afs_write_end()
197 		spin_lock(&vnode->wb_lock);  in afs_write_end()
198 		i_size = i_size_read(&vnode->vfs_inode);  in afs_write_end()
200 			i_size_write(&vnode->vfs_inode, maybe_i_size);  in afs_write_end()
201 		spin_unlock(&vnode->wb_lock);  in afs_write_end()
210 			ret = afs_fill_page(vnode, key, pos + copied,  in afs_write_end()
235 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_kill_pages()  local
240 	       vnode->fid.vid, vnode->fid.vnode, first, last);  in afs_kill_pages()
278 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_redirty_pages()  local
283 	       vnode->fid.vid, vnode->fid.vnode, first, last);  in afs_redirty_pages()
314 static void afs_pages_written_back(struct afs_vnode *vnode,  in afs_pages_written_back()  argument
322 	       vnode->fid.vid, vnode->fid.vnode, first, last);  in afs_pages_written_back()
332 		pv.nr = find_get_pages_contig(vnode->vfs_inode.i_mapping,  in afs_pages_written_back()
338 			trace_afs_page_dirty(vnode, tracepoint_string("clear"),  in afs_pages_written_back()
347 	afs_prune_wb_keys(vnode);  in afs_pages_written_back()
358 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_store_data()  local
366 	       vnode->volume->name,  in afs_store_data()
367 	       vnode->fid.vid,  in afs_store_data()
368 	       vnode->fid.vnode,  in afs_store_data()
369 	       vnode->fid.unique,  in afs_store_data()
376 	spin_lock(&vnode->wb_lock);  in afs_store_data()
377 	p = vnode->wb_keys.next;  in afs_store_data()
381 	while (p != &vnode->wb_keys) {  in afs_store_data()
392 	spin_unlock(&vnode->wb_lock);  in afs_store_data()
400 	spin_unlock(&vnode->wb_lock);  in afs_store_data()
405 	if (afs_begin_vnode_operation(&fc, vnode, wbk->key, false)) {  in afs_store_data()
406 		afs_dataversion_t data_version = vnode->status.data_version + 1;  in afs_store_data()
409 			fc.cb_break = afs_calc_vnode_cb_break(vnode);  in afs_store_data()
413 		afs_check_for_remote_deletion(&fc, vnode);  in afs_store_data()
414 		afs_vnode_commit_status(&fc, vnode, fc.cb_break,  in afs_store_data()
417 			afs_pages_written_back(vnode, first, last);  in afs_store_data()
423 		afs_stat_v(vnode, n_stores);  in afs_store_data()
426 				&afs_v2net(vnode)->n_store_bytes);  in afs_store_data()
435 		spin_lock(&vnode->wb_lock);  in afs_store_data()
456 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_write_back_from_locked_page()  local
478 	trace_afs_page_dirty(vnode, tracepoint_string("store"),  in afs_write_back_from_locked_page()
483 		trace_afs_page_dirty(vnode, tracepoint_string("WARN"),  in afs_write_back_from_locked_page()
487 	    (to < PAGE_SIZE && !test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags)))  in afs_write_back_from_locked_page()
510 			    !test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags))  in afs_write_back_from_locked_page()
525 			    !test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags)) {  in afs_write_back_from_locked_page()
531 			trace_afs_page_dirty(vnode, tracepoint_string("store+"),  in afs_write_back_from_locked_page()
595 		trace_afs_file_error(vnode, ret, afs_file_error_writeback_fail);  in afs_write_back_from_locked_page()
733 	struct afs_vnode *vnode = AFS_FS_I(file_inode(iocb->ki_filp));  in afs_file_write()  local
738 	       vnode->fid.vid, vnode->fid.vnode, count);  in afs_file_write()
740 	if (IS_SWAPFILE(&vnode->vfs_inode)) {  in afs_file_write()
763 	struct afs_vnode *vnode = AFS_FS_I(inode);  in afs_fsync()  local
766 	       vnode->fid.vid, vnode->fid.vnode, file,  in afs_fsync()
780 	struct afs_vnode *vnode = AFS_FS_I(inode);  in afs_page_mkwrite()  local
784 	       vnode->fid.vid, vnode->fid.vnode, vmf->page->index);  in afs_page_mkwrite()
792 	fscache_wait_on_page_write(vnode->cache, vmf->page);  in afs_page_mkwrite()
810 	trace_afs_page_dirty(vnode, tracepoint_string("mkwrite"),  in afs_page_mkwrite()
822 void afs_prune_wb_keys(struct afs_vnode *vnode)  in afs_prune_wb_keys()  argument
828 	spin_lock(&vnode->wb_lock);  in afs_prune_wb_keys()
830 	if (!mapping_tagged(&vnode->vfs_inode.i_data, PAGECACHE_TAG_WRITEBACK) &&  in afs_prune_wb_keys()
831 	    !mapping_tagged(&vnode->vfs_inode.i_data, PAGECACHE_TAG_DIRTY)) {  in afs_prune_wb_keys()
832 		list_for_each_entry_safe(wbk, tmp, &vnode->wb_keys, vnode_link) {  in afs_prune_wb_keys()
838 	spin_unlock(&vnode->wb_lock);  in afs_prune_wb_keys()
853 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_launder_page()  local
869 		trace_afs_page_dirty(vnode, tracepoint_string("launder"),  in afs_launder_page()
874 	trace_afs_page_dirty(vnode, tracepoint_string("laundered"),  in afs_launder_page()
881 		fscache_wait_on_page_write(vnode->cache, page);  in afs_launder_page()
882 		fscache_uncache_page(vnode->cache, page);  in afs_launder_page()