diff options
author | Arnd Bergmann <arnd@arndb.de> | 2012-02-13 05:50:07 +0000 |
---|---|---|
committer | Arnd Bergmann <arnd@arndb.de> | 2012-02-13 05:50:26 +0000 |
commit | ffafe770a4160862476405a442d28ee48d2249ef (patch) | |
tree | 5bb7d5913427c245c61dd5eb384321dff386f841 /drivers/s390/block/dasd_alias.c | |
parent | 0dcd627896fb87b2e78a1ed78e469591208cffcd (diff) | |
parent | da911782be4c82dc1222aa0cb5bef28605d1e117 (diff) |
Merge branch 'v3.3-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
* 'v3.3-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung: (2 commits)
ARM: EXYNOS: Add cpu-offset property in gic device tree node
ARM: EXYNOS: Bring exynos4-dt up to date
Linux 3.3-rc3
This includes an update to the v3.3-rc3 release from v3.3-rc2
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/s390/block/dasd_alias.c')
-rw-r--r-- | drivers/s390/block/dasd_alias.c | 64 |
1 files changed, 1 insertions, 63 deletions
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c index 553b3c5abb0..b3beed5434e 100644 --- a/drivers/s390/block/dasd_alias.c +++ b/drivers/s390/block/dasd_alias.c @@ -189,14 +189,12 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) unsigned long flags; struct alias_server *server, *newserver; struct alias_lcu *lcu, *newlcu; - int is_lcu_known; struct dasd_uid uid; private = (struct dasd_eckd_private *) device->private; device->discipline->get_uid(device, &uid); spin_lock_irqsave(&aliastree.lock, flags); - is_lcu_known = 1; server = _find_server(&uid); if (!server) { spin_unlock_irqrestore(&aliastree.lock, flags); @@ -208,7 +206,6 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) if (!server) { list_add(&newserver->server, &aliastree.serverlist); server = newserver; - is_lcu_known = 0; } else { /* someone was faster */ _free_server(newserver); @@ -226,12 +223,10 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) if (!lcu) { list_add(&newlcu->lcu, &server->lculist); lcu = newlcu; - is_lcu_known = 0; } else { /* someone was faster */ _free_lcu(newlcu); } - is_lcu_known = 0; } spin_lock(&lcu->lock); list_add(&device->alias_list, &lcu->inactive_devices); @@ -239,64 +234,7 @@ int dasd_alias_make_device_known_to_lcu(struct dasd_device *device) spin_unlock(&lcu->lock); spin_unlock_irqrestore(&aliastree.lock, flags); - return is_lcu_known; -} - -/* - * The first device to be registered on an LCU will have to do - * some additional setup steps to configure that LCU on the - * storage server. All further devices should wait with their - * initialization until the first device is done. - * To synchronize this work, the first device will call - * dasd_alias_lcu_setup_complete when it is done, and all - * other devices will wait for it with dasd_alias_wait_for_lcu_setup. - */ -void dasd_alias_lcu_setup_complete(struct dasd_device *device) -{ - unsigned long flags; - struct alias_server *server; - struct alias_lcu *lcu; - struct dasd_uid uid; - - device->discipline->get_uid(device, &uid); - lcu = NULL; - spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(&uid); - if (server) - lcu = _find_lcu(server, &uid); - spin_unlock_irqrestore(&aliastree.lock, flags); - if (!lcu) { - DBF_EVENT_DEVID(DBF_ERR, device->cdev, - "could not find lcu for %04x %02x", - uid.ssid, uid.real_unit_addr); - WARN_ON(1); - return; - } - complete_all(&lcu->lcu_setup); -} - -void dasd_alias_wait_for_lcu_setup(struct dasd_device *device) -{ - unsigned long flags; - struct alias_server *server; - struct alias_lcu *lcu; - struct dasd_uid uid; - - device->discipline->get_uid(device, &uid); - lcu = NULL; - spin_lock_irqsave(&aliastree.lock, flags); - server = _find_server(&uid); - if (server) - lcu = _find_lcu(server, &uid); - spin_unlock_irqrestore(&aliastree.lock, flags); - if (!lcu) { - DBF_EVENT_DEVID(DBF_ERR, device->cdev, - "could not find lcu for %04x %02x", - uid.ssid, uid.real_unit_addr); - WARN_ON(1); - return; - } - wait_for_completion(&lcu->lcu_setup); + return 0; } /* |