Andrew Morton writes:
> > Again, BKL has nothing to do with this (and ioctl does not hold it)
>
> asmlinkage long sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg)
> {
> struct file * filp;
> unsigned int flag;
> int on, error = -EBADF;
>
> filp = fget(fd);
> if (!filp)
> goto out;
> error = 0;
> lock_kernel();
>
> The CPU running ifconfig spins here.
Alexey's brain is going through net/socket.c:sock_ioctl() :-)
There we drop the kernel lock...
Later,
David S. Miller
davem@redhat.com
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This archive was generated by hypermail 2b29 : Tue May 15 2001 - 21:00:41 EST