> -----Original Message----- > From: Jane Chu <jane.chu@xxxxxxxxxx> > Subject: Re: [PATCH RESEND v6 2/9] dax: Introduce holder for dax_device > > > On 7/30/2021 3:01 AM, Shiyang Ruan wrote: > > --- a/drivers/dax/super.c > > +++ b/drivers/dax/super.c > > @@ -214,6 +214,8 @@ enum dax_device_flags { > > * @cdev: optional character interface for "device dax" > > * @host: optional name for lookups where the device path is not available > > * @private: dax driver private data > > + * @holder_rwsem: prevent unregistration while holder_ops is in progress > > + * @holder_data: holder of a dax_device: could be filesystem or mapped > device > > * @flags: state and boolean properties > > Perhaps add two documentary lines for @ops and @holder_ops? OK. I'll add them in next version. -- Thanks, Ruan. > > */ > > struct dax_device { > > @@ -222,8 +224,11 @@ struct dax_device { > > struct cdev cdev; > > const char *host; > > void *private; > > + struct rw_semaphore holder_rwsem; > > + void *holder_data; > > unsigned long flags; > > const struct dax_operations *ops; > > + const struct dax_holder_operations *holder_ops; > > }; > > thanks, > -jane -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel