Re: waitid() fails with EINVAL for SA_RESTART signals

[David S. Miller]

From: Roland McGrath <roland@xxxxxxxxxx>
Date: Thu, 26 May 2005 15:22:17 -0700

> Other machines are subject to the same risk and should have a
> prevent_tail_call definition too.  The asm-i386/linkage.h version probably
> works fine for every machine.  It might as well be generic, I'd say.

Sparc, for one, doesn't need it.  We pass the pt_regs in via a pointer
to the trap level stack frame which won't be released by a tail-call
in C code.
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