tree 89ba1f339a68827c1ea0e434629759a9252b0a69
parent bb0003c1e189d5766b6b39299b08c690c985c4dc
author James Bottomley <James.Bottomley@HansenPartnership.com> 1219349654 -0500
committer James Bottomley <James.Bottomley@HansenPartnership.com> 1220019551 -0500

[SCSI] fix check of PQ and PDT bits for WLUNs

For IBM z series certain LUNs can no longer be accessed.

This is because kernel version 2.6.19 a check was introduced not to
create a generic SCSI device for devices that return PQ=1 and
PDT=0x1f. For WLUNs (see SAM-3, p. 41ff) generic SCSI devices should
be created unconditionally without looking at the PQ bit, so add a
check for WLUNs in with this test.

Acked-by: Martin Petermann <martin@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>