On Thu, May 31, 2018 at 12:13:32PM -0700, Darrick J. Wong wrote:
> On Tue, May 29, 2018 at 04:01:14PM -0600, Ross Zwisler wrote:
> > On Tue, May 29, 2018 at 02:25:10PM -0700, Darrick J. Wong wrote:
> > > On Tue, May 29, 2018 at 01:51:01PM -0600, Ross Zwisler wrote:
> > > > From: Dave Jiang <dave.jiang@xxxxxxxxx>
> > > >
> > > > The function return values are confusing with the way the function is
> > > > named. We expect a true or false return value but it actually returns
> > > > 0/-errno. This makes the code very confusing. Changing the return values
> > > > to return a bool where if DAX is supported then return true and no DAX
> > > > support returns false.
> > > >
> > > > Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
> > > > Signed-off-by: Ross Zwisler <ross.zwisler@xxxxxxxxxxxxxxx>
> > >
> > > Looks ok, do you want me to pull the first two patches through the xfs
> > > tree?
> > >
> > > Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
> >
> > Thanks for the review.
> >
> > I'm not sure what's best. If you do that then Mike will need to have a DM
> > branch for the rest of the series based on your stable commits, yea?
> >
> > Mike what would you prefer?
>
> I /was/ about to say that I would pull in the first two patches, but now
> I can't get xfs to mount with pmem at all, and have no way of testing
> this...?
I have similar problems, too, but:
$ ndctl list
[
{
"dev":"namespace1.0",
"mode":"raw",
"size":8589934592,
"sector_size":512,
"blockdev":"pmem1"
},
{
"dev":"namespace0.0",
"mode":"raw",
"size":8589934592,
"sector_size":512,
"blockdev":"pmem0"
}
]
$ sudo ndctl create-namespace -f -e namespace0.0 --mode=fsdax
Error: operation failed, region0 fsdax mode not available
failed to reconfigure namespace: Invalid argument
$
I can't make head or tail of what is going wrong here - how am I
supposed to debug this and get it working again?
FWIW, XFS+DAX used to just work on this setup (I hadn't even
installed ndctl until this morning!) but after changing the kernel
it no longer works. That would make it a regression, yes?
Cheers,
Dave.
--
Dave Chinner
david@xxxxxxxxxxxxx
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