diff options
Diffstat (limited to 'drivers/scsi/scsi_transport_fc.c')
| -rw-r--r-- | drivers/scsi/scsi_transport_fc.c | 59 |
1 files changed, 35 insertions, 24 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 217651468115..4953f0dca029 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -1,4 +1,4 @@ -/* +/* * FiberChannel transport specific attributes exported to sysfs. * * Copyright (c) 2003 Silicon Graphics, Inc. All rights reserved. @@ -22,6 +22,7 @@ * Copyright (C) 2004-2007 James Smart, Emulex Corporation * Rewrite for host, target, device, and remote port attributes, * statistics, and service functions... + * Add vports, etc * */ #include <linux/module.h> @@ -37,6 +38,7 @@ #include "scsi_priv.h" static int fc_queue_work(struct Scsi_Host *, struct work_struct *); +static void fc_vport_sched_delete(struct work_struct *work); /* * This is a temporary carrier for creating a vport. It will eventually @@ -377,7 +379,7 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev, struct Scsi_Host *shost = dev_to_shost(dev); struct fc_host_attrs *fc_host = shost_to_fc_host(shost); - /* + /* * Set default values easily detected by the midlayer as * failure cases. The scsi lldd is responsible for initializing * all transport attributes to valid values per host. @@ -1198,12 +1200,9 @@ store_fc_vport_delete(struct class_device *cdev, const char *buf, size_t count) { struct fc_vport *vport = transport_class_to_vport(cdev); - int stat; - - stat = fc_vport_terminate(vport); - if (stat) - return stat; + struct Scsi_Host *shost = vport_to_shost(vport); + fc_queue_work(shost, &vport->vport_delete_work); return count; } static FC_CLASS_DEVICE_ATTR(vport, vport_delete, S_IWUSR, @@ -1996,7 +1995,7 @@ fc_attach_transport(struct fc_function_template *ft) i->t.eh_timed_out = fc_timed_out; i->t.user_scan = fc_user_scan; - + /* * Setup SCSI Target Attributes. */ @@ -2215,23 +2214,12 @@ fc_remove_host(struct Scsi_Host *shost) struct workqueue_struct *work_q; struct fc_host_attrs *fc_host = shost_to_fc_host(shost); unsigned long flags; - int stat; spin_lock_irqsave(shost->host_lock, flags); /* Remove any vports */ - list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) { - spin_unlock_irqrestore(shost->host_lock, flags); - /* this must be called synchronously */ - stat = fc_vport_terminate(vport); - spin_lock_irqsave(shost->host_lock, flags); - if (stat) - dev_printk(KERN_ERR, vport->dev.parent, - "%s: %s could not be deleted created via " - "shost%d channel %d\n", __FUNCTION__, - vport->dev.bus_id, vport->shost->host_no, - vport->channel); - } + list_for_each_entry_safe(vport, next_vport, &fc_host->vports, peers) + fc_queue_work(shost, &vport->vport_delete_work); /* Remove any remote ports */ list_for_each_entry_safe(rport, next_rport, @@ -2308,7 +2296,7 @@ fc_rport_final_delete(struct work_struct *work) unsigned long flags; /* - * if a scan is pending, flush the SCSI Host work_q so that + * if a scan is pending, flush the SCSI Host work_q so that * that we can reclaim the rport scan work element. */ if (rport->flags & FC_RPORT_SCAN_PENDING) @@ -2858,7 +2846,7 @@ EXPORT_SYMBOL(fc_remote_port_rolechg); * fc_timeout_deleted_rport - Timeout handler for a deleted remote port, * which we blocked, and has now failed to return * in the allotted time. - * + * * @work: rport target that failed to reappear in the allotted time. **/ static void @@ -3061,6 +3049,7 @@ fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev, vport->shost = shost; vport->channel = channel; vport->flags = FC_VPORT_CREATING; + INIT_WORK(&vport->vport_delete_work, fc_vport_sched_delete); spin_lock_irqsave(shost->host_lock, flags); @@ -3207,8 +3196,30 @@ fc_vport_terminate(struct fc_vport *vport) } EXPORT_SYMBOL(fc_vport_terminate); +/** + * fc_vport_sched_delete - workq-based delete request for a vport + * + * @work: vport to be deleted. + **/ +static void +fc_vport_sched_delete(struct work_struct *work) +{ + struct fc_vport *vport = + container_of(work, struct fc_vport, vport_delete_work); + int stat; + + stat = fc_vport_terminate(vport); + if (stat) + dev_printk(KERN_ERR, vport->dev.parent, + "%s: %s could not be deleted created via " + "shost%d channel %d - error %d\n", __FUNCTION__, + vport->dev.bus_id, vport->shost->host_no, + vport->channel, stat); +} + -MODULE_AUTHOR("Martin Hicks"); +/* Original Author: Martin Hicks */ +MODULE_AUTHOR("James Smart"); MODULE_DESCRIPTION("FC Transport Attributes"); MODULE_LICENSE("GPL"); |