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SubjectRe: [RFC/RFT][PATCH -mm] swsusp: userland interface
Date
Hi,

On Friday, 13 January 2006 20:53, Ingo Oeser wrote:
> On Friday 13 January 2006 00:31, Rafael J. Wysocki wrote:
> > On Thursday, 12 January 2006 23:09, Pavel Machek wrote:
> > > > +SNAPSHOT_IOCAVAIL_SWAP - check the amount of available swap (the last argument
> > > > + should be a pointer to an unsigned int variable that will contain
> > > > + the result if the call is successful)
> > >
> > > Is this good idea? It will overflow on 32-bit systems. Ammount of
> > > available swap can be >4GB. [Or maybe it is in something else than
> > > bytes, then you need to specify it.]
> >
> > It returns the number of pages. Well, it should be written explicitly,
> > so I'll fix that.
>
> Please always talk to the kernel in bytes. Pagesize is only a kernel
> internal unit. Sth. like off64_t is fine.

These are values returned by the kernel, actually. Of course I can convert them
to bytes before sending to the user space, if that's preferrable.

Pavel, what do you think?

Rafael
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