In fact the up-to-date qemu versions (>= 2.1) rarely use FIEMAP (see the commit 4f11aa8a4035,
and the explanation in the commit c4875e5b2216 for more details).
Recently the FIEMAP related code has been removed (commit c4875e5b2216c). I think we should
get rid of FIEMAP too. I'm working on backporting the upstream changes.
In fact the up-to-date qemu versions (>= 2.1) rarely use FIEMAP (see the commit 4f11aa8a4035,
and the explanation in the commit c4875e5b2216 for more details).
Recently the FIEMAP related code has been removed (commit c4875e5b2216c). I think we should
get rid of FIEMAP too. I'm working on backporting the upstream changes.