[PATCHES] Convert gencache to dbwrap to enable mutexes

[Stefan (metze) Metzmacher]

Hi,

>>>> After that, we can either
>>>> convert gencache_notrans to dbwrap, or add mutex support to tdb_wrap and
>>>> convert gencache_notrans to tdb_wrap as suggested by Volker in
>>>> https://lists.samba.org/archive/samba-technical/2014-September/102699.html
>>
>> The patches look good to me. I attached them with my reviewed-by, and
>> also added patches to convert gencache to tdb_wrap, add a mutex check in
>> tdb_wrap_open and finally request mutexes for gencache_notrans.
> 
> Just noticed that Volker already pushed the tdb_wrap check for mutexes.
> Here are the remaining six patches that apply on top of the current
> master branch. Someone would need to review the gencache changes i made.

I'm now seeing this in the in an autobuild:

memdisk/metze/a/b17912/samba/bin/smbd:
tdb(/memdisk/metze/a/b17912/samba/bin/ab/plugin_s4_dc/cachedir/gencache.tdb):
tdb_transaction_start: cannot start a trans
action with locks held
/memdisk/metze/a/b17912/samba/bin/smbd:
tdb(/memdisk/metze/a/b17912/samba/bin/ab/plugin_s4_dc/cachedir/gencache.tdb):
tdb_transaction_start: cannot start a trans
action with locks held
/memdisk/metze/a/b17912/samba/bin/smbd:
tdb(/memdisk/metze/a/b17912/samba/bin/ab/plugin_s4_dc/cachedir/gencache.tdb):
tdb_transaction_start: cannot start a trans
action with locks held

metze

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