Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=527660a819f513edc52fea6bcb4068ce1d4d966b
Commit: 527660a819f513edc52fea6bcb4068ce1d4d966b
Parent: 1b101ceb9162086035ce0c9cbe83ca7b4845179a
Author: Oliver Neukum <[EMAIL PROTECTED]>
AuthorDate: Fri Apr 20 20:50:48 2007 +0200
Committer: Greg Kroah-Hartman <[EMAIL PROTECTED]>
CommitDate: Fri Apr 27 13:28:42 2007 -0700
usbfs micro optimitation
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 e023f3d..927a181 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -580,7 +580,7 @@ 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:
-
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