AcoSail/kernel_optimize_test
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bsg: cdev lock_kernel() pushdown

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Push the cdev lock_kernel call into bsg_open().

Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Corbet 2008-05-15 09:09:23 -06:00
parent b8291ad07a
commit 75bd2ef145
1 changed files with 6 additions and 1 deletions
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7
block/bsg.c
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@ -19,6 +19,7 @@
#include <linux/uio.h>
#include <linux/idr.h>
#include <linux/bsg.h>
#include <linux/smp_lock.h>
#include <scsi/scsi.h>
#include <scsi/scsi_ioctl.h>
@ -834,7 +835,11 @@ static struct bsg_device *bsg_get_device(struct inode *inode, struct file *file)
static int bsg_open(struct inode *inode, struct file *file)
{
struct bsg_device *bd = bsg_get_device(inode, file);
struct bsg_device *bd;
lock_kernel();
bd = bsg_get_device(inode, file);
unlock_kernel();
if (IS_ERR(bd))
return PTR_ERR(bd);