On Tue, Oct 21, 2008 at 12:14:26PM -0400, David P. Quigley wrote: > I looked at where filesystems such as ext3 store these and it seems to > be in include/linux. I'm assuming this is because usespace utilities > like fsck need them. It seems wrong for userspace tools to have their > own private copy since you can potentially have them out of sync with > the kernel you are running and it provides more chance for you > forgetting to update a structure somewhere. All modern filesystems have it in their directories, and ext3 will have that soon too. The only thing that should go into include/linux are defintions for ioctls if you have them. It is absolutely intention that the tools can get out of sync with the kernel, because that actually keeps them compiling when you update things in the kernel - note that a single on disk format can be represented by lots of different things in C, and for various reaosons those can change once in a while in the kernel. It also allows you to actually compile the tools on a system that doesn't have new enough kernel headers yet (e.g. debian autobuilders) or even run the tools on various platforms that have no or different kernel implementations. -- 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
