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Use is_vmalloc_addr() in vdev_disk.c

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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>
This commit is contained in:
Richard Yao 2014-11-03 09:42:44 -05:00 committed by Brian Behlendorf
parent 92119cc259
commit 71f8548ea4
1 changed files with 1 additions and 1 deletions
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module/zfs/vdev_disk.c
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@ -479,7 +479,7 @@ bio_map(struct bio *bio, void *bio_ptr, unsigned int bio_size)
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);