Thanks Stefan. ::
About the issue you mentioned, that you need to change the kernel and the user mode at the same time: You can keep it compatible. Just do not delete the old kernel interface. The user mode program could try the new interface first, and if it fails, fall back to the old interface. You can use the same ioctl number for both ways if you change the length of the ioctl parameter.
Here there won't be a definite failure as such, kernel could send or read garbage if the old and new structures don't match. The problem with most of the ioctl api structures are they don't (already) share the struct len. So it won't be possible to know which version of the structure is being used by the other party? Anand -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
