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authorTejun Heo <htejun@gmail.com>2006-05-31 05:27:42 -0400
committerTejun Heo <htejun@gmail.com>2006-05-31 05:27:42 -0400
commit453b07accb47c5b54aa2f156ebffac63c543027b (patch)
treea08ee98bab64b1d92a9856e086c87de53012b6fc /drivers/scsi/libata-core.c
parent3edebac41bab7e146578ad9e723ee7fff71c99c0 (diff)
[PATCH] libata-hp-prep: add ata_aux_wq
It's best to run ATA hotplug from EH but attaching SCSI devices needs working EH. ata_aux_wq is used to give SCSI hotplug operations a separate context. Signed-off-by: Tejun Heo <htejun@gmail.com>
Diffstat (limited to 'drivers/scsi/libata-core.c')
-rw-r--r--drivers/scsi/libata-core.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index b1a02fdbb0a..04921cf2fc0 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -69,6 +69,8 @@ static void ata_dev_xfermask(struct ata_device *dev);
69static unsigned int ata_unique_id = 1; 69static unsigned int ata_unique_id = 1;
70static struct workqueue_struct *ata_wq; 70static struct workqueue_struct *ata_wq;
71 71
72struct workqueue_struct *ata_aux_wq;
73
72int atapi_enabled = 1; 74int atapi_enabled = 1;
73module_param(atapi_enabled, int, 0444); 75module_param(atapi_enabled, int, 0444);
74MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)"); 76MODULE_PARM_DESC(atapi_enabled, "Enable discovery of ATAPI devices (0=off, 1=on)");
@@ -5623,6 +5625,12 @@ static int __init ata_init(void)
5623 if (!ata_wq) 5625 if (!ata_wq)
5624 return -ENOMEM; 5626 return -ENOMEM;
5625 5627
5628 ata_aux_wq = create_singlethread_workqueue("ata_aux");
5629 if (!ata_aux_wq) {
5630 destroy_workqueue(ata_wq);
5631 return -ENOMEM;
5632 }
5633
5626 printk(KERN_DEBUG "libata version " DRV_VERSION " loaded.\n"); 5634 printk(KERN_DEBUG "libata version " DRV_VERSION " loaded.\n");
5627 return 0; 5635 return 0;
5628} 5636}
@@ -5630,6 +5638,7 @@ static int __init ata_init(void)
5630static void __exit ata_exit(void) 5638static void __exit ata_exit(void)
5631{ 5639{
5632 destroy_workqueue(ata_wq); 5640 destroy_workqueue(ata_wq);
5641 destroy_workqueue(ata_aux_wq);
5633} 5642}
5634 5643
5635module_init(ata_init); 5644module_init(ata_init);