On Thu, Dec 07, 2017 at 09:45:38AM +0100, Geert Uytterhoeven wrote: > > > > Small allocations never fail in the current kernel. > > A few comments (this is in response to a patch from Markus, so there have > to be lots of questions and uncertainties ;-) > 1. In the current kernel. What about the future? Right. No one can predict. And the small allocations don't fail rule causes some problems. > 2. If a small allocation cannot fail, what happens if the small memory slab > is exhausted? A new page must be allocated, which will trigger an OOM, > and some other part of the system will be killed and fail. Right. > 3. This driver uses GFP_ATOMIC, is that guaranteed to succeed? I think not. > Right again. I was missing the first email in the thread because of my email filters so I didn't see this was atomic. regards, dan carpenter -- To unsubscribe from this list: send the line "unsubscribe kernel-janitors" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
