new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those
authorAl Viro <viro@zeniv.linux.org.uk>
Tue, 20 Nov 2012 19:24:26 +0000 (14:24 -0500)
committerAl Viro <viro@zeniv.linux.org.uk>
Wed, 19 Dec 2012 23:07:41 +0000 (18:07 -0500)
commitc40702c49faef05ae324f121d8b3e215244ee152
treeb0b2a51b07e944497da5cb48fb461963a3762cad
parent9026843952adac5b123c7b8dc961e5c15828d9e1
new helpers: __save_altstack/__compat_save_altstack, switch x86 and um to those

note that they are relying on access_ok() already checked by caller.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
arch/x86/ia32/ia32_signal.c
arch/x86/kernel/signal.c
arch/x86/um/signal.c
include/linux/compat.h
include/linux/signal.h
kernel/signal.c