On 06/20/2012 10:54 AM, Xiao Guangrong wrote:

On 06/20/2012 04:06 AM, Seth Jennings wrote:

quoted

On 06/19/2012 02:49 PM, Dan Magenheimer wrote:

quoted

My preference would be to fix it the opposite way, by
checking and ignoring zcache_host in zcache_put_pool.
The ref-counting is to ensure that a client isn't
accidentally destroyed while in use (for multiple-client
users such as ramster and kvm) and since zcache_host is a static
struct, it should never be deleted so need not be ref-counted.

If we do that, we'll need to comment it.  If we don't, it won't be
obvious why we are refcounting every zcache client except one.  It'll
look like a bug.

Okay, i will fix it like Dan's way and comment it.

Hmm...But i notice that zcache_host is the same as other clients, all
of them are static struct:

| static struct zcache_client zcache_host;
| static struct zcache_client zcache_clients[MAX_CLIENTS];

And all of them are not destroyed.

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