[sheepdog] [PATCH] sheep: reinitialize conn->blocking_siblings after delete it

[Christoph Hellwig]

On Thu, Jun 28, 2012 at 04:59:50PM +0800, Liu Yuan wrote:
> Let's wait for Christoph's comment to see if he has any smarter
> alternative. I have taken a glance at the Linux kernel's list.h and
> didn't find a helper that check if entry is added or not either.
> 
> If we don't come up with any better method, let's merge it tomorrow.

The kernel uses list_emptry for entries.  Using list_del_init and
checking with list_empty if entries are members of a list is a very
common pattern in the kernel.