Re: [RFC][PATCH 1 of 4] Configfs is really sysfs

From: Daniel Phillips (phillips_at_istop.com)
Date: 08/31/05

  • Next message: Daniel Phillips: "Re: [RFC][PATCH 4 of 4] Configfs is really sysfs" 
    To: Joel Becker <Joel.Becker@oracle.com>
Date:	Wed, 31 Aug 2005 09:25:22 +1000

    On Wednesday 31 August 2005 09:13, Joel Becker wrote:
    > On Wed, Aug 31, 2005 at 08:54:39AM +1000, Daniel Phillips wrote:
    > > But it would be stupid to forbid users from creating directories in sysfs
    > > or to forbid kernel modules from directly tweaking a configfs namespace.
    > > Why should the kernel not be able to add objects to a directory a user
    > > created? It should be up to the module author to decide these things.
    >
    > This is precisely why configfs is separate from sysfs. If both
    > user and kernel can create objects, the lifetime of the object and its
    > filesystem representation is very complex. Sysfs already has problems
    > with people getting this wrong. configfs does not.

    Could you please give a specific case?

    > The fact that sysfs and configfs have similar backing stores
    > does not make them the same thing.

    It is not just the backing store, it is most of the code, all the structures,
    most of the functionality, a good deal of the bugs...

    Regards,

    Daniel
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  • Next message: Daniel Phillips: "Re: [RFC][PATCH 4 of 4] Configfs is really sysfs"

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