17 static void afs_write_to_cache(struct afs_vnode *vnode, loff_t start, size_t len,
48 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));  in afs_write_begin()  local
57 	       vnode->fid.vid, vnode->fid.vnode, pos, len);  in afs_write_begin()
63 	ret = netfs_write_begin(&vnode->netfs, file, mapping, pos, len, &folio, fsdata);  in afs_write_begin()
82 			trace_afs_folio_dirty(vnode, tracepoint_string("alrdy"), folio);  in afs_write_begin()
89 		if (!test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags) &&  in afs_write_begin()
126 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));  in afs_write_end()  local
133 	       vnode->fid.vid, vnode->fid.vnode, folio_index(folio));  in afs_write_end()
149 	i_size = i_size_read(&vnode->netfs.inode);  in afs_write_end()
151 		write_seqlock(&vnode->cb_lock);  in afs_write_end()
152 		i_size = i_size_read(&vnode->netfs.inode);  in afs_write_end()
154 			afs_set_i_size(vnode, write_end_pos);  in afs_write_end()
155 		write_sequnlock(&vnode->cb_lock);  in afs_write_end()
156 		fscache_update_cookie(afs_vnode_cache(vnode), NULL, &write_end_pos);  in afs_write_end()
169 		trace_afs_folio_dirty(vnode, tracepoint_string("dirty+"), folio);  in afs_write_end()
173 		trace_afs_folio_dirty(vnode, tracepoint_string("dirty"), folio);  in afs_write_end()
191 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_kill_pages()  local
197 	       vnode->fid.vid, vnode->fid.vnode, len, start);  in afs_kill_pages()
229 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_redirty_pages()  local
235 	       vnode->fid.vid, vnode->fid.vnode, len, start);  in afs_redirty_pages()
258 static void afs_pages_written_back(struct afs_vnode *vnode, loff_t start, unsigned int len)  in afs_pages_written_back()  argument
260 	struct address_space *mapping = vnode->netfs.inode.i_mapping;  in afs_pages_written_back()
267 	       vnode->fid.vid, vnode->fid.vnode, len, start);  in afs_pages_written_back()
279 		trace_afs_folio_dirty(vnode, tracepoint_string("clear"), folio);  in afs_pages_written_back()
286 	afs_prune_wb_keys(vnode);  in afs_pages_written_back()
295 static int afs_get_writeback_key(struct afs_vnode *vnode,  in afs_get_writeback_key()  argument
302 	spin_lock(&vnode->wb_lock);  in afs_get_writeback_key()
306 		p = vnode->wb_keys.next;  in afs_get_writeback_key()
308 	while (p != &vnode->wb_keys) {  in afs_get_writeback_key()
324 	spin_unlock(&vnode->wb_lock);  in afs_get_writeback_key()
333 	struct afs_vnode *vnode = op->file[0].vnode;  in afs_store_data_success()  local
339 			afs_pages_written_back(vnode, op->store.pos, op->store.size);  in afs_store_data_success()
340 		afs_stat_v(vnode, n_stores);  in afs_store_data_success()
341 		atomic_long_add(op->store.size, &afs_v2net(vnode)->n_store_bytes);  in afs_store_data_success()
354 static int afs_store_data(struct afs_vnode *vnode, struct iov_iter *iter, loff_t pos,  in afs_store_data()  argument
363 	       vnode->volume->name,  in afs_store_data()
364 	       vnode->fid.vid,  in afs_store_data()
365 	       vnode->fid.vnode,  in afs_store_data()
366 	       vnode->fid.unique,  in afs_store_data()
369 	ret = afs_get_writeback_key(vnode, &wbk);  in afs_store_data()
375 	op = afs_alloc_operation(wbk->key, vnode->volume);  in afs_store_data()
381 	afs_op_set_vnode(op, 0, vnode);  in afs_store_data()
387 	op->store.i_size = max(pos + size, vnode->netfs.remote_i_size);  in afs_store_data()
389 	op->mtime = vnode->netfs.inode.i_mtime;  in afs_store_data()
406 		ret = afs_get_writeback_key(vnode, &wbk);  in afs_store_data()
428 				 struct afs_vnode *vnode,  in afs_extend_writeback()  argument
524 			trace_afs_folio_dirty(vnode, tracepoint_string("store+"), folio);  in afs_extend_writeback()
552 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_write_back_from_locked_folio()  local
556 	loff_t i_size = i_size_read(&vnode->netfs.inode);  in afs_write_back_from_locked_folio()
557 	bool new_content = test_bit(AFS_VNODE_NEW_CONTENT, &vnode->flags);  in afs_write_back_from_locked_folio()
558 	bool caching = fscache_cookie_enabled(afs_vnode_cache(vnode));  in afs_write_back_from_locked_folio()
578 	trace_afs_folio_dirty(vnode, tracepoint_string("store"), folio);  in afs_write_back_from_locked_folio()
592 			afs_extend_writeback(mapping, vnode, &count,  in afs_write_back_from_locked_folio()
610 		afs_write_to_cache(vnode, start, len, i_size, caching);  in afs_write_back_from_locked_folio()
613 		ret = afs_store_data(vnode, &iter, start, false);  in afs_write_back_from_locked_folio()
619 		afs_pages_written_back(vnode, start, len);  in afs_write_back_from_locked_folio()
656 		trace_afs_file_error(vnode, ret, afs_file_error_writeback_fail);  in afs_write_back_from_locked_folio()
792 	struct afs_vnode *vnode = AFS_FS_I(mapping->host);  in afs_writepages()  local
803 		down_read(&vnode->validate_lock);  in afs_writepages()
804 	else if (!down_read_trylock(&vnode->validate_lock))  in afs_writepages()
829 	up_read(&vnode->validate_lock);  in afs_writepages()
839 	struct afs_vnode *vnode = AFS_FS_I(file_inode(iocb->ki_filp));  in afs_file_write()  local
845 	       vnode->fid.vid, vnode->fid.vnode, count);  in afs_file_write()
847 	if (IS_SWAPFILE(&vnode->netfs.inode)) {  in afs_file_write()
856 	result = afs_validate(vnode, af->key);  in afs_file_write()
873 	struct afs_vnode *vnode = AFS_FS_I(file_inode(file));  in afs_fsync()  local
878 	       vnode->fid.vid, vnode->fid.vnode, file,  in afs_fsync()
881 	ret = afs_validate(vnode, af->key);  in afs_fsync()
897 	struct afs_vnode *vnode = AFS_FS_I(inode);  in afs_page_mkwrite()  local
902 	_enter("{{%llx:%llu}},{%lx}", vnode->fid.vid, vnode->fid.vnode, folio_index(folio));  in afs_page_mkwrite()
904 	afs_validate(vnode, af->key);  in afs_page_mkwrite()
936 		trace_afs_folio_dirty(vnode, tracepoint_string("mkwrite+"), folio);  in afs_page_mkwrite()
939 		trace_afs_folio_dirty(vnode, tracepoint_string("mkwrite"), folio);  in afs_page_mkwrite()
952 void afs_prune_wb_keys(struct afs_vnode *vnode)  in afs_prune_wb_keys()  argument
958 	spin_lock(&vnode->wb_lock);  in afs_prune_wb_keys()
960 	if (!mapping_tagged(&vnode->netfs.inode.i_data, PAGECACHE_TAG_WRITEBACK) &&  in afs_prune_wb_keys()
961 	    !mapping_tagged(&vnode->netfs.inode.i_data, PAGECACHE_TAG_DIRTY)) {  in afs_prune_wb_keys()
962 		list_for_each_entry_safe(wbk, tmp, &vnode->wb_keys, vnode_link) {  in afs_prune_wb_keys()
968 	spin_unlock(&vnode->wb_lock);  in afs_prune_wb_keys()
982 	struct afs_vnode *vnode = AFS_FS_I(folio_inode(folio));  in afs_launder_folio()  local
1005 		trace_afs_folio_dirty(vnode, tracepoint_string("launder"), folio);  in afs_launder_folio()
1006 		ret = afs_store_data(vnode, &iter, folio_pos(folio) + f, true);  in afs_launder_folio()
1009 	trace_afs_folio_dirty(vnode, tracepoint_string("laundered"), folio);  in afs_launder_folio()
1021 	struct afs_vnode *vnode = priv;  in afs_write_to_cache_done()  local
1025 		afs_invalidate_cache(vnode, 0);  in afs_write_to_cache_done()
1031 static void afs_write_to_cache(struct afs_vnode *vnode,  in afs_write_to_cache()  argument
1035 	fscache_write_to_cache(afs_vnode_cache(vnode),  in afs_write_to_cache()
1036 			       vnode->netfs.inode.i_mapping, start, len, i_size,  in afs_write_to_cache()
1037 			       afs_write_to_cache_done, vnode, caching);  in afs_write_to_cache()