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From: Cyril Hrubis <chrubis-AlSwsSmVLrQ@public.gmane.org>
To: Arnd Bergmann <arnd-r2nGTMty4D4@public.gmane.org>
Cc: mtk.manpages-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
	linux-man-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	linux-api-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: [PATCH] ioctl_list.2: BLKRASET/BLKRAGET take unsigned long
Date: Wed, 15 Feb 2017 15:29:07 +0100	[thread overview]
Message-ID: <20170215142907.GA28937@rei.lan> (raw)
In-Reply-To: <20170215125946.GA27511-2UyX9mZUyMU@public.gmane.org>

Hi!
> So as far as I can tell we depend here on a fact that upper part of $rdx
> is zeroed. Not sure if that is guaranteed or not.

Which seems to be the case for x86_64 processors, so passing int value
to ioctl() will work fine there. Not sure about the rest of 64bit archs.

-- 
Cyril Hrubis
chrubis-AlSwsSmVLrQ@public.gmane.org
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  parent reply	other threads:[~2017-02-15 14:29 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-02-15 11:20 [PATCH] ioctl_list.2: BLKRASET/BLKRAGET take unsigned long Cyril Hrubis
     [not found] ` <20170215112015.GA27080-2UyX9mZUyMU@public.gmane.org>
2017-02-15 11:22   ` Cyril Hrubis
     [not found]     ` <20170215112205.GA27269-2UyX9mZUyMU@public.gmane.org>
2017-02-15 12:04       ` Arnd Bergmann
     [not found]         ` <CAK8P3a0KzhqFZqvPH4q7_Nb6+TMmhCWXDi_-wQG=mi-1U=Ccxw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2017-02-15 12:59           ` Cyril Hrubis
     [not found]             ` <20170215125946.GA27511-2UyX9mZUyMU@public.gmane.org>
2017-02-15 14:29               ` Cyril Hrubis [this message]
2017-04-10 15:21           ` Michael Kerrisk (man-pages)
2017-03-14 13:21       ` Cyril Hrubis
     [not found]         ` <20170314132120.GA8347-2UyX9mZUyMU@public.gmane.org>
2017-04-03 14:02           ` Cyril Hrubis
2017-04-10 15:21   ` Michael Kerrisk (man-pages)

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