From: Christoph Hellwig <hch@lst.de>
Date: Fri, 13 Jan 2006 17:27:11 +0000 (+0100)
Subject: [SCSI] fusion: convert semaphores to mutexes
X-Git-Tag: v2.6.16-rc1~162^2~35
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eeb846cefdd842af479393a7d0fd399a29e42532;p=linux-2.6

[SCSI] fusion: convert semaphores to mutexes

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
---

diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index af9007d498..74355f2eca 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -413,7 +413,7 @@ typedef struct _MPT_IOCTL {
 	u8			 status;	/* current command status */
 	u8			 reset;		/* 1 if bus reset allowed */
 	u8			 target;	/* target for reset */
-	struct semaphore	 sem_ioc;
+	struct mutex		 ioctl_mutex;
 } MPT_IOCTL;
 
 #define MPT_SAS_MGMT_STATUS_RF_VALID	0x02	/* The Reply Frame is VALID */
@@ -421,7 +421,7 @@ typedef struct _MPT_IOCTL {
 #define MPT_SAS_MGMT_STATUS_TM_FAILED	0x40	/* User TM request failed */
 
 typedef struct _MPT_SAS_MGMT {
-	struct semaphore	 mutex;
+	struct mutex		 mutex;
 	struct completion	 done;
 	u8			 reply[MPT_DEFAULT_FRAME_SIZE]; /* reply frame data */
 	u8			 status;	/* current command status */
diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c
index 7c340240a5..bdf7099879 100644
--- a/drivers/message/fusion/mptctl.c
+++ b/drivers/message/fusion/mptctl.c
@@ -177,10 +177,10 @@ mptctl_syscall_down(MPT_ADAPTER *ioc, int nonblock)
 	dctlprintk((KERN_INFO MYNAM "::mptctl_syscall_down(%p,%d) called\n", ioc, nonblock));
 
 	if (nonblock) {
-		if (down_trylock(&ioc->ioctl->sem_ioc))
+		if (!mutex_trylock(&ioc->ioctl->ioctl_mutex))
 			rc = -EAGAIN;
 	} else {
-		if (down_interruptible(&ioc->ioctl->sem_ioc))
+		if (mutex_lock_interruptible(&ioc->ioctl->ioctl_mutex))
 			rc = -ERESTARTSYS;
 	}
 	dctlprintk((KERN_INFO MYNAM "::mptctl_syscall_down return %d\n", rc));
@@ -557,7 +557,7 @@ __mptctl_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	else
 		ret = -EINVAL;
 
-	up(&iocp->ioctl->sem_ioc);
+	mutex_unlock(&iocp->ioctl->ioctl_mutex);
 
 	return ret;
 }
@@ -2619,7 +2619,7 @@ compat_mptfwxfer_ioctl(struct file *filp, unsigned int cmd,
 
 	ret = mptctl_do_fw_download(kfw.iocnum, kfw.bufp, kfw.fwlen);
 
-	up(&iocp->ioctl->sem_ioc);
+	mutex_unlock(&iocp->ioctl->ioctl_mutex);
 
 	return ret;
 }
@@ -2673,7 +2673,7 @@ compat_mpt_command(struct file *filp, unsigned int cmd,
 	 */
 	ret = mptctl_do_mpt_command (karg, &uarg->MF);
 
-	up(&iocp->ioctl->sem_ioc);
+	mutex_unlock(&iocp->ioctl->ioctl_mutex);
 
 	return ret;
 }
@@ -2743,7 +2743,7 @@ mptctl_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	memset(mem, 0, sz);
 	ioc->ioctl = (MPT_IOCTL *) mem;
 	ioc->ioctl->ioc = ioc;
-	sema_init(&ioc->ioctl->sem_ioc, 1);
+	mutex_init(&ioc->ioctl->ioctl_mutex);
 	return 0;
 
 out_fail:
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index b2c682fe63..19fc03ecdf 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -457,7 +457,7 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset)
 	if (phy->identify.target_port_protocols & SAS_PROTOCOL_SMP)
 		return -ENXIO;
 
-	if (down_interruptible(&ioc->sas_mgmt.mutex))
+	if (mutex_lock_interruptible(&ioc->sas_mgmt.mutex))
 		goto out;
 
 	mf = mpt_get_msg_frame(mptsasMgmtCtx, ioc);
@@ -508,7 +508,7 @@ static int mptsas_phy_reset(struct sas_phy *phy, int hard_reset)
 	error = 0;
 
  out_unlock:
-	up(&ioc->sas_mgmt.mutex);
+	mutex_unlock(&ioc->sas_mgmt.mutex);
  out:
 	return error;
 }
@@ -1477,7 +1477,7 @@ mptsas_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	INIT_LIST_HEAD(&ioc->sas_topology);
 	mutex_init(&ioc->sas_topology_mutex);
 
-	init_MUTEX(&ioc->sas_mgmt.mutex);
+	mutex_init(&ioc->sas_mgmt.mutex);
 	init_completion(&ioc->sas_mgmt.done);
 
 	/* Verify that we won't exceed the maximum