---
title: UnmapTryExtentCoalesce
framework: kernel
role: symbol
role_heading: Instance Method
path: kernel/ioscsiblockcommandsdevice/1792129-unmaptryextentcoalesce
---

# UnmapTryExtentCoalesce

## Declaration

```occ
bool UnmapTryExtentCoalesce(IOBlockStorageDeviceExtent *mergedExtent, IOBlockStorageDeviceExtent *currentExtent, IOBlockStorageDeviceExtent *nextExtent);
```