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 09:06:41 +0000 (10:06 +0100)
commitdc3a7a7d2c85cb3162b46295ecb01ac78f3da1aa
tree5b9888c1ac974cfd9eff1df2eb3b59234f5fc6f7
parent1731d90d8a558ecb20cdee0c2c001ae8e15c251d
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