Re: how do we block interrupts?

From: Richard B. Johnson (root@chaos.analogic.com)
Date: Mon Nov 12 2001 - 08:24:00 EST


On Mon, 12 Nov 2001, Sureshkumar Kamalanathan wrote:

> Hi all,
> I have added a function inside kernel in netif_rx(). I want to block
> all the ethernet interrupts till this function is executed.
> How do we block and unblock the interrupts?
> Thanks in advance,
>
> Regards,
> Sureshkumar K.

Like line 1002 of ../linux/net/core/dev.c

spin_lock_irqsave(&netdev_fc_lock, flags);
        blocked_code();
spin_unlock_irqrestore(&netdev_fc_lock, flags);

Cheers,
Dick Johnson

Penguin : Linux version 2.4.1 on an i686 machine (799.53 BogoMips).

    I was going to compile a list of innovations that could be
    attributed to Microsoft. Once I realized that Ctrl-Alt-Del
    was handled in the BIOS, I found that there aren't any.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/



This archive was generated by hypermail 2b29 : Thu Nov 15 2001 - 21:00:29 EST