linux/drivers/s390
Christof Schmitt b62a8d9b45 [SCSI] zfcp: Use SCSI device data zfcp_scsi_dev instead of zfcp_unit
This is the large change to switch from using the data in
zfcp_unit to zfcp_scsi_dev. Keeping everything working requires doing
the switch in one piece. To ensure that no code keeps using the data
in zfcp_unit, this patch also removes the data from zfcp_unit that is
now being replaced with zfcp_scsi_dev.

For zfcp, the scsi_device together with zfcp_scsi_dev exist from the
call of slave_alloc to the call of slave_destroy. The data in
zfcp_scsi_dev is initialized in zfcp_scsi_slave_alloc and the LUN is
opened; the final shutdown for the LUN is run from slave_destroy.

Where the scsi_device or zfcp_scsi_dev is needed, the pointer to the
scsi_device is passed as function argument and inside the function
converted to the pointer to zfcp_scsi_dev; this avoids back and forth
conversion betweeen scsi_device and zfcp_scsi_dev.

While changing the function arguments from zfcp_unit to scsi_device,
the functions names are renamed form "unit" to "lun". This is to have
a seperation between zfcp_scsi_dev/LUN and the zfcp_unit; only code
referring to the remaining configuration information in zfcp_unit
struct uses "unit".

Reviewed-by: Swen Schillig <swen@vnet.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2010-09-16 22:54:17 -04:00
..
block [S390] dasd: fix format string types 2010-08-13 10:06:54 +02:00
char Input: sysrq - drop tty argument form handle_sysrq() 2010-08-21 00:34:45 -07:00
cio [S390] cio: use all available paths for some internal I/O 2010-08-09 18:12:54 +02:00
crypto
kvm
net Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2010-08-13 10:38:12 -07:00
scsi [SCSI] zfcp: Use SCSI device data zfcp_scsi_dev instead of zfcp_unit 2010-09-16 22:54:17 -04:00
Makefile