- if (unlikely(transfer_result)) {
- /*
- * The transfer failed, but we still write the data to
- * keep prepare/commit calls balanced.
- */
- printk(KERN_ERR "loop: transfer error block %llu\n",
- (unsigned long long)index);
- zero_user_page(page, offset, size, KM_USER0);
- }
- flush_dcache_page(page);
- ret = aops->commit_write(file, page, offset,
- offset + size);
- if (unlikely(ret)) {
- if (ret == AOP_TRUNCATED_PAGE) {
- page_cache_release(page);
- continue;
- }
- goto unlock;
- }
+ copied = size;
+ if (unlikely(transfer_result))
+ copied = 0;
+
+ ret = pagecache_write_end(file, mapping, pos, size, copied,
+ page, fsdata);
+ if (ret < 0 || ret != copied)
+ goto fail;
+