Patches for https://bugzilla.samba.org/show_bug.cgi?id=11182

[Jeremy Allison]

On Wed, May 06, 2015 at 08:53:38PM +0200, Michael Adam wrote:
> 
> Now I feel kind of stupid having spent my afternoon
> reviewing the patches... ;) When I thought I was done,
> Ira brought up one potential issue, the discussion of
> which kept me busy until dinner time, which is why I
> can only follow up now:

Don't feel bad. Metze specifically asked me to
look at it, as I was the one who created the
original tag_state_session_ptr() horror :-).

> In the session_shutdown helpers mentioned above,
> compounded requests are excluded from sending
> cancels. Ira points out that when there is a
> compounded request in progress, the last of which
> is a notify, and we are just at one of the earlier
> requests when the shutdown_send is called, isn't
> there a chance that we block indefinitely waiting
> for the notify to vanish from the queue since it
> in the compound and we don't send a cancel?

Let me look closely at this. Sounds right,
but I need to study the code more.

> Attached find my reviewed version of the patchset:
> - The session_shutdown helper is flagged with a Q(...)
> - I have added some refactoring of an obvious code
>   duplication added by the patches.
>   (the removal of the code duplication is still there
>    as separate patches for squashing with metze's original patches)
> - I have done minor changes to some commit messages:
>   - few typo fixes
>   - added explanation of the session_shutdown helpers
>   - added bug references where missing

If my autobuild goes through just add your
fixes on top !

Cheers,

	Jeremy.