Messages in this thread | | | Date | Mon, 22 Jun 2009 08:23:38 +0200 | Subject | Re: [PATCH 06/14] Pramfs: Include files | From | Marco Stornelli <> |
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2009/6/21 Arnd Bergmann <arnd@arndb.de>: > 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-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/
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