Re: max_fd

[Frank van Maarseveen <frankvm@frankvm.com>]

On Fri, Sep 23, 2005 at 10:56:53PM +0530, Dipankar Sarma wrote:
> 
> Well, the main reason is that if that code is somehow copied
> by to a lock-free critical section, it could cause problems.
> If you dereference ->fdt multiple times in a lock-free
> section, you could see two different pointers due to
> a concurrent update.

thanks for the explanation. This raises a lot of other questions. What
if max_fds is updated by RCU right after obtaining it...

-- 
Frank
-
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/