[SCM] Samba Shared Repository - branch v3-2-test updated -
initial-v3-2-unstable-713-g7a911b3
Rafal Szczesniak
mimir at samba.org
Tue Dec 18 11:13:23 GMT 2007
On Tue, Dec 18, 2007 at 11:51:02AM +0100, Volker Lendecke wrote:
> On Tue, Dec 18, 2007 at 11:33:30AM +0100, Rafal Szczesniak wrote:
> > I thought gencache was originally implemented for this reason :-)
>
> There's two reasons why I did not use gencache for this:
>
> First, it's tdb, so there are syscalls around. I want this
> to be very fast, so I want to avoid those.
Yes, I've figured that.
> Second, and this is the more important one: When we share
> this we might have a potential information leak between
> processes. For some information (sid2uid and friends) this
> might be uncritical, but for other stuff like the stat cache
> this might be a bit more sensitive.
Which is why I thought it might be useful to have an in-memory
cache using the same api/mechanisms like gencache, but not employing
tdb as the actual backend.
cheers,
--
Rafal Szczesniak
Samba Team member http://www.samba.org
Likewise Software http://www.likewisesoftware.com
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
Url : http://lists.samba.org/archive/samba-technical/attachments/20071218/76a94143/attachment.bin
More information about the samba-technical
mailing list