2009/6/21 Arnd Bergmann <arnd@xxxxxxxx>: > On Sunday 21 June 2009, Marco wrote: >> I was thinking about your comment and I think I'll use __kernel_off_t >> for the exported headers. I know that it will differ between 32 and 64 >> bit architectures, but for this kind of fs there isn't any compatibility >> problem at layout level. You cannot remove a chip of RAM from a board >> 32bit little endian and attach it to a board with a cpu 64bit big >> endian, the memory isn't a disk. Indeed, I see that tmpfs uses simply >> "unsigned long" in the exported header file without any problems to >> little or big endian. > > It's still a problem. You might be creating a file system image > for an embedded board with a different endianess. It's not possible to create an "image" with pramfs, it's like tmpfs. > Or even on the same machine, you could be looking at the file system contents > with a 32 bit process running on a 64 bit kernel. > > Arnd <>< > Yes, indeed the most important thing is to be sure that a 64bit kernel works well. I'll try to test it in this environment. If there are "64bit guys" to help me to test it, it'd be great. Marco -- To unsubscribe from this list: send the line "unsubscribe linux-embedded" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
