Re: [RFC/RFT][PATCH -mm] swsusp: userland interface

From: Ingo Oeser
Date: Fri Jan 13 2006 - 14:53:23 EST


Hi,

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.


Regards

Ingo Oeser

Attachment: pgp00000.pgp
Description: PGP signature