x86: get rid of get_user_ex() in restore_sigcontext()

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Just do copyin into a local struct and be done with that - we are
on a shallow stack here.

[reworked by tglx, removing the macro horrors while we are touching that]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Al Viro 2020-02-15 12:56:57 -05:00

parent 978727ca33

commit 3add42c29c

1 changed files with 36 additions and 50 deletions

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86

arch/x86/kernel/signal.c

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