[SCSI] add use_sg_chaining option to scsi_host_template

[linux-2.6] / drivers / scsi / scsi_scan.c

diff --git a/drivers/scsi/scsi_scan.c b/drivers/scsi/scsi_scan.c
index 309b2246d2d31c55b659c581d27d08abcc3b9f4a..b53c5f67e372684cc23c81a9f0ce19a41109e1ac 100644 (file)
--- a/drivers/scsi/scsi_scan.c
+++ b/drivers/scsi/scsi_scan.c
@@ -85,7 +85,7 @@ static unsigned int max_scsi_luns = MAX_SCSI_LUNS;
 static unsigned int max_scsi_luns = 1;
 #endif
 
-module_param_named(max_luns, max_scsi_luns, int, S_IRUGO|S_IWUSR);
+module_param_named(max_luns, max_scsi_luns, uint, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(max_luns,
                 "last scsi LUN (should be between 1 and 2^32-1)");
 
@@ -109,14 +109,14 @@ MODULE_PARM_DESC(scan, "sync, async or none");
  */
 static unsigned int max_scsi_report_luns = 511;
 
-module_param_named(max_report_luns, max_scsi_report_luns, int, S_IRUGO|S_IWUSR);
+module_param_named(max_report_luns, max_scsi_report_luns, uint, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(max_report_luns,
                 "REPORT LUNS maximum number of LUNS received (should be"
                 " between 1 and 16384)");
 
 static unsigned int scsi_inq_timeout = SCSI_TIMEOUT/HZ+3;
 
-module_param_named(inq_timeout, scsi_inq_timeout, int, S_IRUGO|S_IWUSR);
+module_param_named(inq_timeout, scsi_inq_timeout, uint, S_IRUGO|S_IWUSR);
 MODULE_PARM_DESC(inq_timeout, 
                 "Timeout (in seconds) waiting for devices to answer INQUIRY."
                 " Default is 5. Some non-compliant devices need more.");
@@ -1799,6 +1799,7 @@ static int do_scan_async(void *_data)
  **/
 void scsi_scan_host(struct Scsi_Host *shost)
 {
+       struct task_struct *p;
        struct async_scan_data *data;
 
        if (strncmp(scsi_scan_type, "none", 4) == 0)
@@ -1810,7 +1811,9 @@ void scsi_scan_host(struct Scsi_Host *shost)
                return;
        }
 
-       kthread_run(do_scan_async, data, "scsi_scan_%d", shost->host_no);
+       p = kthread_run(do_scan_async, data, "scsi_scan_%d", shost->host_no);
+       if (unlikely(IS_ERR(p)))
+               do_scan_async(data);
 }
 EXPORT_SYMBOL(scsi_scan_host);