On Thursday 12 May 2016 10:17:58 Catalin Marinas wrote: > On Wed, May 11, 2016 at 09:30:07PM +0200, Arnd Bergmann wrote: > > On Wednesday 11 May 2016 17:59:01 Catalin Marinas wrote: > > > > I don't think the shifts are a problem, the main downside would be > > the limit to 44 bits of file offsets (16TB files), but it's also > > unclear if that is a practical problem at all. If it is, we run > > into the same problem on all other 32-bit architectures too. > > I hope people are seriously thinking of moving to an LP64 ABI if they > have such large file offset needs. Good point. 44 bits of file size is certainly enough for mmap() on a 32-bit task: you would only be able to map a very small fraction of the file anyway, and if you want to map larger files, and should move to 64-bit tasks long before this becomes a limitation. Arnd -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
