sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting.
authorDavid S. Miller <davem@davemloft.net>
Tue, 25 Oct 2016 01:58:05 +0000 (18:58 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Mon, 21 Nov 2016 09:11:38 +0000 (10:11 +0100)
commitbb522726d3115bcb4e7147a594e6f8a0cb4e3fef
tree2d609bad05e96a59b71593062d9fbd133ee5944d
parentb0580eadc19ff3a617a7d07cfaf2a985153c114e
sparc64: Convert NG4copy_{from,to}_user to accurate exception reporting.

[ Upstream commit 95707704800988093a9b9a27e0f2f67f5b4bf2fa ]

Report the exact number of bytes which have not been successfully
copied when an exception occurs, using the running remaining length.

Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
arch/sparc/lib/NG4copy_from_user.S
arch/sparc/lib/NG4copy_to_user.S
arch/sparc/lib/NG4memcpy.S