zfsonlinux/spl — pull request #256 by behlendorf (2013-07-03 18:43:41+00:00)
Title: Fix --enable-debug-kmem-tracking option

This code has gotten something stale and no longer builds cleanly
against modern kernels. The two issues addressed here are as
follows:

* The hlist_*_rcu interfaces in the kernel have been relatively
unstable. Since this isn't performance critical code just use
the long standing hlist_* variants.

* In older kernels the hash_ptr() function takes a 'void *' but
in newer kernels it expects a 'const void *'. To silence the
compiler warnings about this explicitly cast it to a 'void *'.
The memset function is a similar case but it always expects
a 'void *'.

Signed-off-by: Brian Behlendorf