From: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Date: Thu, 4 Feb 2010 14:43:46 +0000 (-0600)
Subject: [SCSI] hpsa: eliminate lock_kernel in compat_ioctl
X-Git-Tag: v2.6.34-rc1~284^2~55
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=e39eeaed1f75fcd46783aad34cb9ab8a6046bb01;p=karo-tx-linux.git

[SCSI] hpsa: eliminate lock_kernel in compat_ioctl

The use of the big kernel lock here  appears
to be ancient cruft that is no longer needed.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
---

diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 6b40221a7220..225a787dedf3 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -2287,16 +2287,6 @@ static void cmd_special_free(struct ctlr_info *h, struct CommandList *c)
 
 #ifdef CONFIG_COMPAT
 
-static int do_ioctl(struct scsi_device *dev, int cmd, void *arg)
-{
-	int ret;
-
-	lock_kernel();
-	ret = hpsa_ioctl(dev, cmd, arg);
-	unlock_kernel();
-	return ret;
-}
-
 static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg);
 static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
 	int cmd, void *arg);
@@ -2319,7 +2309,7 @@ static int hpsa_compat_ioctl(struct scsi_device *dev, int cmd, void *arg)
 	case CCISS_REGNEWD:
 	case CCISS_RESCANDISK:
 	case CCISS_GETLUNINFO:
-		return do_ioctl(dev, cmd, arg);
+		return hpsa_ioctl(dev, cmd, arg);
 
 	case CCISS_PASSTHRU32:
 		return hpsa_ioctl32_passthru(dev, cmd, arg);
@@ -2355,7 +2345,7 @@ static int hpsa_ioctl32_passthru(struct scsi_device *dev, int cmd, void *arg)
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(dev, CCISS_PASSTHRU, (void *)p);
+	err = hpsa_ioctl(dev, CCISS_PASSTHRU, (void *)p);
 	if (err)
 		return err;
 	err |= copy_in_user(&arg32->error_info, &p->error_info,
@@ -2392,7 +2382,7 @@ static int hpsa_ioctl32_big_passthru(struct scsi_device *dev,
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(dev, CCISS_BIG_PASSTHRU, (void *)p);
+	err = hpsa_ioctl(dev, CCISS_BIG_PASSTHRU, (void *)p);
 	if (err)
 		return err;
 	err |= copy_in_user(&arg32->error_info, &p->error_info,