linux dmapi support?

linux dmapi support?

[David Brown]

I was wondering what was going on with the dmapi support for linux? I
see that the mount option got removed does this mean that its on by
default now? or is the other option used to trigger when dmapi is
enabled?

I found some of the examples in the cvs tree for xfs-cmds under the
tests but they just don't seem to work and for some reason it can't
initialize the dmapi. I hope this doesn't mean that support is no
longer available... *shrug* any help would be appreciated.

Thanks,
- David Brown

Re: linux dmapi support?

[David Chinner]

On Mon, Jun 18, 2007 at 10:29:50AM -0700, David Brown wrote:
> I was wondering what was going on with the dmapi support for linux? I
> see that the mount option got removed does this mean that its on by
> default now? or is the other option used to trigger when dmapi is
> enabled?

Mount option got removed?

#define MNTOPT_DMAPI    "dmapi"         /* DMI enabled (DMAPI / XDSM) */
#define MNTOPT_XDSM     "xdsm"          /* DMI enabled (DMAPI / XDSM) */
#define MNTOPT_DMI      "dmi"           /* DMI enabled (DMAPI / XDSM) */

Still there, and it still works....

> I found some of the examples in the cvs tree for xfs-cmds under the
> tests but they just don't seem to work and for some reason it can't
> initialize the dmapi.

dmapi is not in kernel.org trees, so you need to use the cvs tree.
Then you need both the CONFIG_DMAPI and CONFIG_XFS_DMAPI build
options set to build as modules.

Then you need to load the modules, and the QA tests will run
(the qa tests check for the existance of a loaded dmapi module
and don't run if it is not present).

Cheers,

Dave.
-- 
Dave Chinner
Principal Engineer
SGI Australian Software Group