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Re: [Dazuko-devel] Device file events
From: |
Abhishek Nayani |
Subject: |
Re: [Dazuko-devel] Device file events |
Date: |
Mon, 12 Sep 2005 01:21:42 -0600 |
Hi John,
>>> John Ogness <address@hidden> 09/02/05 12:32 pm >>>
>Dazuko uses LSM for Linux 2.6. LSM generates *many* events for devices
and
>directories, which caused many unnecessary context- switches resulting
in
>performance problems. For this reason Dazuko for Linux 2.6 was
confined to
>only generate events for regular files and links.
Currently, Dazuko only supports "Open" and "Exec" events on 2.6 using
LSM.
Since dazuko registers the "inode_permission" hook, all the events
which are
generated are because of open or exec, which are what we need. Can you
expand on what you mean by "many" events ? Also, the context switches
happen
only when the user registers for the dev directory, so I guess they do
not come
into the picture unless the user actually wants to listen to them.
Regards,
Abhi.
- [Dazuko-devel] 2.1.0-pre8 posted, John Ogness, 2005/09/01
- [Dazuko-devel] Device file events, Abhishek Nayani, 2005/09/02
- Re: [Dazuko-devel] Device file events, John Ogness, 2005/09/02
- Re: [Dazuko-devel] Device file events,
Abhishek Nayani <=
- Re: [Dazuko-devel] Device file events, John Ogness, 2005/09/13
- Re: [Dazuko-devel] Device file events, Abhishek Nayani, 2005/09/14
- Re: [Dazuko-devel] Device file events, John Ogness, 2005/09/14
- [Dazuko-devel] DazukoFS (was Re: Device file events), Abhishek Nayani, 2005/09/14
- [Dazuko-devel] Re: DazukoFS (was Re: Device file events), John Ogness, 2005/09/14
- [Dazuko-devel] Re: DazukoFS (was Re: Device file events), Abhishek Nayani, 2005/09/15