[PATCH 4.8 42/49] sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting.

4.8-stable review patch. If anyone has any objections, please let me know. -- From: "David S. Miller" [ Upstream commit 95707704800988093a9b9a27e0f2f67f5b4bf2fa ] Report the exact number of bytes which have not been successfully copied when an exception

[PATCH 4.8 42/49] sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting.

4.8-stable review patch. If anyone has any objections, please let me know. -- From: "David S. Miller" [ Upstream commit 95707704800988093a9b9a27e0f2f67f5b4bf2fa ] Report the exact number of bytes which have not been successfully copied when an exception occurs, using the