Re: [PATCH 7/7] file: Modify struct fown_struct to use a struct pid.

[Oleg Nesterov <oleg@tv-sign.ru>]

On 08/16, Oleg Nesterov wrote:
>
> On 08/15, Eric W. Biederman wrote:
> >
> > File handles can be requested to send sigio and sigurg
> > to processes.   By tracking the destination processes
> > using struct pid instead of pid_t we make the interface
> > safe from all potential pid wrap around problems.
>
> ....
> 
> The second change is good (I'd say this is bugfix). It is
> not possible anymore to send the signal to not yet created
> processes via fcntl(F_SETOWN, last_pid + a_little), or hit
> a problem with pid re-use.

Damn, I read the patch but forgot to read the changelog :)
It clearly says "safe from all potential pid wrap around problems",
sorry.

Oleg.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/