e2b25f698c
For Linux the maximum uid can vary depending on how your kernel is built. The Linux kernel still can be compiled with 16 but uids and gids, although I'm not aware of a major distribution which does this (maybe an embedded one?). Given that caviot it is reasonably safe to define the MAXUID as 2147483647.
The Solaris Porting Layer (SPL) is a Linux kernel module which provides many of the Solaris kernel APIs. This shim layer makes it possible to run Solaris kernel code in the Linux kernel with relatively minimal modification. This can be particularly useful when you want to track upstream Solaris development closely and don’t want the overhead of maintaining a large patch which converts Solaris primitives to Linux primitives.
To build packages for your distribution:
$ ./configure
$ make pkg
Full documentation for building, configuring, and using the SPL can be found at: http://zfsonlinux.org