linux-kernel - Re: [PATCH] Move sig_kernel_* et al macros to linux/signal.h

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Message-Id: <20070504011003.113b1580.akpm@linux-foundation.org>
Date:	Fri, 4 May 2007 01:10:03 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Roland McGrath <roland@...hat.com>
Cc:	Christoph Hellwig <hch@....de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Move sig_kernel_* et al macros to linux/signal.h

On Sun, 29 Apr 2007 21:02:38 -0700 (PDT) Roland McGrath <roland@...hat.com> wrote:

> This patch moves the sig_kernel_* and related macros from kernel/signal.c
> to linux/signal.h, and cleans them up slightly.  I need the sig_kernel_*
> macros for default signal behavior in the utrace code, and want to avoid
> duplication or overhead to share the knowledge.
> 
> ...
>
> +#ifdef SIGEMT
> +#define SIGEMT_MASK	rt_sigmask(SIGEMT)
> +#else
> +#define SIGEMT_MASK	0
> +#endif
> +
> +#if SIGRTMIN > BITS_PER_LONG
> +#define rt_sigmask(sig)	(1ULL << ((sig)-1))
> +#else
> +#define rt_sigmask(sig)	sigmask(sig)
> +#endif
> +#define siginmask(sig, mask) (rt_sigmask(sig) & (mask))

Should we undef rt_sigmask and siginmask after using them here?

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