Commit 527660a8 authored by Oliver Neukum's avatar Oliver Neukum Committed by Greg Kroah-Hartman

usbfs micro optimitation

the memory barrier is needed only with smp.
Signed-off-by: default avatarOliver Neukum <oneukum@suse.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent 1b101ceb
...@@ -580,7 +580,7 @@ static int usbdev_open(struct inode *inode, struct file *file) ...@@ -580,7 +580,7 @@ static int usbdev_open(struct inode *inode, struct file *file)
ps->disccontext = NULL; ps->disccontext = NULL;
ps->ifclaimed = 0; ps->ifclaimed = 0;
security_task_getsecid(current, &ps->secid); security_task_getsecid(current, &ps->secid);
wmb(); smp_wmb();
list_add_tail(&ps->list, &dev->filelist); list_add_tail(&ps->list, &dev->filelist);
file->private_data = ps; file->private_data = ps;
out: out:
......
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