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authorStefan Haberland <stefan.haberland@de.ibm.com>2014-07-18 14:19:25 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2014-07-22 09:26:21 +0200
commitdaa991bf30cbea85dc10560e6932406677ed5d5c (patch)
tree8ce6020df13e5d71803b7b9b0aa4d099717181fa /drivers/s390
parent896cb7e635ec562cd9f2dc98dea193727a50eade (diff)
downloadop-kernel-dev-daa991bf30cbea85dc10560e6932406677ed5d5c.zip
op-kernel-dev-daa991bf30cbea85dc10560e6932406677ed5d5c.tar.gz
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>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/block/dasd.c11
-rw-r--r--drivers/s390/block/dasd_eckd.c4
-rw-r--r--drivers/s390/block/dasd_int.h2
3 files changed, 9 insertions, 8 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c
index 1e50626..5e8442c 100644
--- a/drivers/s390/block/dasd.c
+++ b/drivers/s390/block/dasd.c
@@ -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;
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 2e8e075..39748fd 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -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,
diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 690001a..7a14582 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -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
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