On Wed, 24 Jan 2007 10:52:58 +0100 Laurent Vivier <[email protected]> wrote:
> Andrew Morton wrote:
> > On Wed, 17 Jan 2007 10:55:54 +0100
> > Sébastien Dugué <[email protected]> wrote:
> >
> >> +struct lio_event *lio_create(struct sigevent __user *user_event,
> >> + int mode)
> >> +{
> >> + int ret = 0;
> >> + struct lio_event *lio = NULL;
> >> +
> >> + if (unlikely((mode == LIO_NOWAIT) && !user_event))
> >> + return lio;
> >> +
> >> + lio = kzalloc(sizeof(*lio), GFP_KERNEL);
> >> +
> >> + if (!lio)
> >> + return ERR_PTR(-EAGAIN);
> >> +
> >
> > Why EAGAIN and not ENOMEM?
>
> According to the POSIX AIO specifications:
>
> "ERRORS:
> ...
> [EAGAIN]
> The resources necessary to queue all the I/O requests were not available. "
>
> I think memory is "a resource necessary to queue all the I/O requests"...
>
> http://www.opengroup.org/onlinepubs/009695399/functions/lio_listio.html
>
> Regards,
> Laurent
Thanks Laurent,
just forgot the whys here.
Sébastien.
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