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>
if (size > bio_size)
size = bio_size;
- if (kmem_virt(bio_ptr))
+ if (is_vmalloc_addr(bio_ptr))
page = vmalloc_to_page(bio_ptr);
else
page = virt_to_page(bio_ptr);