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dasd: use aliases for formatted devices during format 

Formatting of a previously formatted device is slower than newly
format a device when alias devices are available.
For already formatted devices the alias devices are not used for
formatting.

Fix the alias handling for already formatted devices.

Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Stefan Haberland 2014-07-18 14:19:25 +02:00 committed by Martin Schwidefsky
parent 896cb7e635
commit daa991bf30
3 changed files with 9 additions and 8 deletions
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11
drivers/s390/block/dasd.c
View File

@ -285,6 +285,12 @@ static int dasd_state_basic_to_known(struct dasd_device *device)
{
int rc;
if (device->discipline->basic_to_known) {
rc = device->discipline->basic_to_known(device);
if (rc)
return rc;
}
if (device->block) {
dasd_profile_exit(&device->block->profile);
debugfs_remove(device->block->debugfs_dentry);
@ -375,11 +381,6 @@ static int dasd_state_ready_to_basic(struct dasd_device *device)
{
int rc;
if (device->discipline->ready_to_basic) {
rc = device->discipline->ready_to_basic(device);
if (rc)
return rc;
}
device->state = DASD_STATE_BASIC;
if (device->block) {
struct dasd_block *block = device->block;

4
drivers/s390/block/dasd_eckd.c
View File

@ -2039,7 +2039,7 @@ static int dasd_eckd_online_to_ready(struct dasd_device *device)
return 0;
};
static int dasd_eckd_ready_to_basic(struct dasd_device *device)
static int dasd_eckd_basic_to_known(struct dasd_device *device)
{
return dasd_alias_remove_device(device);
};
@ -4511,7 +4511,7 @@ static struct dasd_discipline dasd_eckd_discipline = {
.verify_path = dasd_eckd_verify_path,
.basic_to_ready = dasd_eckd_basic_to_ready,
.online_to_ready = dasd_eckd_online_to_ready,
.ready_to_basic = dasd_eckd_ready_to_basic,
.basic_to_known = dasd_eckd_basic_to_known,
.fill_geometry = dasd_eckd_fill_geometry,
.start_IO = dasd_start_IO,
.term_IO = dasd_term_IO,

2
drivers/s390/block/dasd_int.h
View File

@ -304,7 +304,7 @@ struct dasd_discipline {
*/
int (*basic_to_ready) (struct dasd_device *);
int (*online_to_ready) (struct dasd_device *);
int (*ready_to_basic) (struct dasd_device *);
int (*basic_to_known)(struct dasd_device *);
/* (struct dasd_device *);
* Device operation functions. build_cp creates a ccw chain for