tree 148f60e1db4efa563d3f4ee5e7bc735358b57a13
parent 05d1c7c0d0db4cc25548d9aadebb416888a82327
author Andy Grover <agrover@redhat.com> 1310169893 -0700
committer Nicholas Bellinger <nab@linux-iscsi.org> 1311327468 +0000

target: Enforce 1 page max for control cdb buffer sizes

Due to all cdbs' data buffers being referenced by scatterlists, buffers
of more than a page are not contiguous. Instead of handling this in all
control command handlers, we may be able to get away with just limiting
control cdb data buffers to one page. The only control CDBs we handle that
have potentially large data buffers are REPORT LUNS and UNMAP, so if we
didn't want to live with this limitation, they would need to be modified
to walk the pages in the data buffer's sgl.

Signed-off-by: Andy Grover <agrover@redhat.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>