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Brian Behlendorf
2b3543025c
At some point we are going to need to implement the kmem cache move callbacks to allow for kmem cache defragmentation. This commit simply lays a small part of the API ground work, it does not actually implement any of this feature. This is safe for now because the move callbacks are just an optimization. Even if they are registered we don't ever really have to call them.
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.
Documentation for building, configuring, and using the SPL can be found at: http://wiki.github.com/behlendorf/spl/