tree 9d0c0a8f6f81c464606d40af860d87c8c636765d
parent b39604755ce06389357b0c22d138c954f2e96451
author Benjamin Coddington <bcodding@redhat.com> 1516890986 -0500
committer Trond Myklebust <trondmy@gmail.com> 1516916555 -0500

pnfs/blocklayout: Ensure disk address in block device map

It's possible that the device map is smaller than the offset into the device
for the I/O we're adding.  Add a check for it and bail out, otherwise we
risk botching the bio calculations that follow.

Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Trond Myklebust <trondmy@gmail.com>