Christoph Lameter <[email protected]> wrote:
>
> + spin_lock(&mapping->private_lock);
> +
> + bh = head;
> + do {
> + get_bh(bh);
> + lock_buffer(bh);
> + bh = bh->b_this_page;
> +
> + } while (bh != head);
> +
Guys, lock_buffer() sleeps and cannot be called inside spinlock.
Please, always enable kernel preemption and all debug options when testing
your code.
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