Re: [RFC][PATCH] 2/6 POSIX message queues

[Arnd Bergmann]

Krzysztof Benedyczak wrote:

> +
> +struct mq_attr {
> +	long	mq_flags;	/* message queue flags			*/
> +	long	mq_maxmsg;	/* maximum number of messages		*/
> +	long	mq_msgsize;	/* maximum message size			*/
> +	long	mq_curmsgs;	/* number of messages currently queued	*/
> +};
> +

Does POSIX mandate that these have to be 'long'? If you can change them
all to any of 'int', '__s32' or '__s64', the handlers for 32 bit system
call emulation on 64 bit machines will get a lot simpler because the
32 bit user structures are then identical to the 64 bit ones.

	Arnd <><

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