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The initial port of ZFS to Linux required a way to identify virtual memory to make IO to virtual memory backed slabs work, so kmem_virt() was created. Linux 2.6.25 introduced is_vmalloc_addr(), which is logically equivalent to kmem_virt(). Support for kernels before 2.6.26 was later dropped and more recently, support for kernels before Linux 2.6.32 has been dropped. We retire kmem_virt() in favor of is_vmalloc_addr() to cleanup the code. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Native ZFS for Linux!
ZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the Illumos community.
ZFS on Linux, which is also known as ZoL, is currently feature complete. It includes fully functional and stable SPA, DMU, ZVOL, and ZPL layers.
Full documentation for installing ZoL on your favorite Linux distribution can be found at: http://zfsonlinux.org