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[SCSI] turn most scsi semaphores into mutexes

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the scsi layer is using semaphores in a mutex way, this patch converts
these into using mutexes instead

Signed-off-by: Arjan van de Ven <arjan@infradead.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
This commit is contained in:
Arjan van de Ven
2006-01-11 13:16:10 +01:00
committed by James Bottomley
parent dacee84b07
commit 0b95067238
17 changed files with 131 additions and 120 deletions
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8
drivers/scsi/hosts.c
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@@ -156,16 +156,16 @@ EXPORT_SYMBOL(scsi_host_set_state);
void scsi_remove_host(struct Scsi_Host *shost)
{
unsigned long flags;
down(&shost->scan_mutex);
mutex_lock(&shost->scan_mutex);
spin_lock_irqsave(shost->host_lock, flags);
if (scsi_host_set_state(shost, SHOST_CANCEL))
if (scsi_host_set_state(shost, SHOST_CANCEL_RECOVERY)) {
spin_unlock_irqrestore(shost->host_lock, flags);
up(&shost->scan_mutex);
mutex_unlock(&shost->scan_mutex);
return;
}
spin_unlock_irqrestore(shost->host_lock, flags);
up(&shost->scan_mutex);
mutex_unlock(&shost->scan_mutex);
scsi_forget_host(shost);
scsi_proc_host_rm(shost);
@@ -320,7 +320,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template *sht, int privsize)
INIT_LIST_HEAD(&shost->starved_list);
init_waitqueue_head(&shost->host_wait);
init_MUTEX(&shost->scan_mutex);
mutex_init(&shost->scan_mutex);
shost->host_no = scsi_host_next_hn++; /* XXX(hch): still racy */
shost->dma_channel = 0xff;