tree 57cf2f7ad304459ae6af5fc5aa1788c5d550f7fb
parent d753856c9f9ae33a980192aa7b81d8b97d79dec2
author Richard Weinberger <richard@nod.at> 1418216031 +0100
committer Richard Weinberger <richard@nod.at> 1420377626 +0100

um: Skip futex_atomic_cmpxchg_inatomic() test

futex_atomic_cmpxchg_inatomic() does not work on UML because
it triggers a copy_from_user() in kernel context.
On UML copy_from_user() can only be used if the kernel was called
by a real user space process such that UML can use ptrace()
to fetch the value.

Reported-by: Miklos Szeredi <miklos@szeredi.hu>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Tested-by: Daniel Walter <d.walter@0x90.at>