[PATCH 4.4 34/37] sparc64: Convert NG2copy_{from,to}_user to accurate exception reporting.

4.4-stable review patch. If anyone has any objections, please let me know. -- From: "David S. Miller" [ Upstream commit e93704e4464fdc191f73fce35129c18de2ebf95d ] Report the exact number of bytes which have not been successfully copied when an exception

[PATCH 4.4 34/37] sparc64: Convert NG2copy_{from,to}_user to accurate exception reporting.

4.4-stable review patch. If anyone has any objections, please let me know. -- From: "David S. Miller" [ Upstream commit e93704e4464fdc191f73fce35129c18de2ebf95d ] Report the exact number of bytes which have not been successfully copied when an exception occurs, using the