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authorHannes Reinecke <hare@suse.de>2014-06-25 15:27:36 +0200
committerChristoph Hellwig <hch@lst.de>2014-07-17 22:07:37 +0200
commit9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3 (patch)
tree576b86c3ec56dd7176285ec2d27f27ca55f77bc3 /drivers/s390/scsi/zfcp_dbf.c
parentqla2xxx: Restrict max_lun to 16-bit for older HBAs (diff)
downloadlinux-9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3.tar.xz
linux-9cb78c16f5dadefd8dc5ba0ae5a2f26cd59419b3.zip
scsi: use 64-bit LUNs
The SCSI standard defines 64-bit values for LUNs, and large arrays employing large or hierarchical LUN numbers become more and more common. So update the linux SCSI stack to use 64-bit LUN numbers. Signed-off-by: Hannes Reinecke <hare@suse.de> Reviewed-by: Christoph Hellwig <hch@infradead.org> Reviewed-by: Ewan Milne <emilne@redhat.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/s390/scsi/zfcp_dbf.c')
-rw-r--r--drivers/s390/scsi/zfcp_dbf.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c
index 0ca64484cfa3..5d7fbe4e907e 100644
--- a/drivers/s390/scsi/zfcp_dbf.c
+++ b/drivers/s390/scsi/zfcp_dbf.c
@@ -418,7 +418,8 @@ void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf)
rec->scsi_retries = sc->retries;
rec->scsi_allowed = sc->allowed;
rec->scsi_id = sc->device->id;
- rec->scsi_lun = sc->device->lun;
+ /* struct zfcp_dbf_scsi needs to be updated to handle 64bit LUNs */
+ rec->scsi_lun = (u32)sc->device->lun;
rec->host_scribble = (unsigned long)sc->host_scribble;
memcpy(rec->scsi_opcode, sc->cmnd,