[PATCH 69/78] usbfs micro optimitation
Greg Kroah-Hartman <[email protected]>
| Newsgroups | gmane.linux.usb.devel |
|---|---|
| Message-ID | <[email protected]> |
From: Oliver Neukum <[email protected]> the memory barrier is needed only with smp. Signed-off-by: Oliver Neukum <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/usb/core/devio.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 2c32c3f..4ad7995 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -586,7 +586,7 @@ static int usbdev_open(struct inode *inode, struct file *file) ps->disccontext = NULL; ps->ifclaimed = 0; security_task_getsecid(current, &ps->secid); - wmb(); + smp_wmb(); list_add_tail(&ps->list, &dev->filelist); file->private_data = ps; out: -- 1.5.1.2 ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel