Add _irqsave/_irqrestore to the locking in update_drop_skb to keep
uml_net_rx out while the drop skb is being messed with.
Signed-off-by: Jeff Dike <[email protected]>
---
arch/um/drivers/net_kern.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
Index: linux-2.6.22/arch/um/drivers/net_kern.c
===================================================================
--- linux-2.6.22.orig/arch/um/drivers/net_kern.c 2007-09-28 11:10:19.000000000 -0400
+++ linux-2.6.22/arch/um/drivers/net_kern.c 2007-09-28 11:13:58.000000000 -0400
@@ -49,9 +49,10 @@ static int drop_max;
static int update_drop_skb(int max)
{
struct sk_buff *new;
+ unsigned long flags;
int err = 0;
- spin_lock(&drop_lock);
+ spin_lock_irqsave(&drop_lock, flags);
if (max <= drop_max)
goto out;
@@ -68,7 +69,7 @@ static int update_drop_skb(int max)
drop_max = max;
err = 0;
out:
- spin_unlock(&drop_lock);
+ spin_unlock_irqrestore(&drop_lock, flags);
return err;
}
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
