Re: [PATCH] error path in setup_arg_pages() misses vm_unacct_memory()

From: Hugh Dickins
Date: Tue Sep 13 2005 - 06:31:07 EST


On Tue, 13 Sep 2005, Andrew Morton wrote:
> Kirill Korotaev <dev@xxxxx> wrote:
> >
> > maybe it is worth moving vm_acct_memory() out of
> > security_vm_enough_memory()?
>
> I think that would be saner, yes. That means that the callers would call
> vm_acct_memory() after security_enough_memory(), if that succeeded.

I don't like that at all. The implementation of its tests is necessarily
imprecise, but nonetheless, we do prefer primitives which atomically test
and reserve. We're not moving from request_region to check_region, are we?

But change the naming by all means, it was never good,
and grew worse when "security_" got stuck on the front.

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