diff options
| author | Darrick J. Wong <djwong@us.ibm.com> | 2007-01-11 23:15:43 +0100 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-01-13 23:21:53 +0100 |
| commit | 6b0efb8516a5298e12033df61f9e0c376a306adb (patch) | |
| tree | 3f63587167905e86de330fb28219dbfb309aad9a /drivers/scsi/libsas/sas_init.c | |
| parent | [SCSI] libsas: phy port lock needs irq spinlocks (diff) | |
| download | linux-6b0efb8516a5298e12033df61f9e0c376a306adb.tar.xz linux-6b0efb8516a5298e12033df61f9e0c376a306adb.zip | |
[SCSI] libsas: Add SAS_HA state flags to avoid queueing events while unloading
Track sas_ha_struct state so that we ignore events that come in while
we're shutting things down.
Signed-off-by: Malahal Naineni <malahal@us.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/libsas/sas_init.c')
| -rw-r--r-- | drivers/scsi/libsas/sas_init.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_init.c b/drivers/scsi/libsas/sas_init.c index 4df73d69bb3c..965698c8b7bf 100644 --- a/drivers/scsi/libsas/sas_init.c +++ b/drivers/scsi/libsas/sas_init.c @@ -87,6 +87,9 @@ int sas_register_ha(struct sas_ha_struct *sas_ha) else if (sas_ha->lldd_queue_size == -1) sas_ha->lldd_queue_size = 128; /* Sanity */ + sas_ha->state = SAS_HA_REGISTERED; + spin_lock_init(&sas_ha->state_lock); + error = sas_register_phys(sas_ha); if (error) { printk(KERN_NOTICE "couldn't register sas phys:%d\n", error); @@ -127,6 +130,15 @@ Undo_phys: int sas_unregister_ha(struct sas_ha_struct *sas_ha) { + unsigned long flags; + + /* Set the state to unregistered to avoid further + * events to be queued */ + spin_lock_irqsave(&sas_ha->state_lock, flags); + sas_ha->state = SAS_HA_UNREGISTERED; + spin_unlock_irqrestore(&sas_ha->state_lock, flags); + scsi_flush_work(sas_ha->core.shost); + sas_unregister_ports(sas_ha); if (sas_ha->lldd_max_execute_num > 1) { |