On Fri, Jan 28, 2022 at 02:31:45PM -0700, Jane Chu wrote: > +int dax_prep_recovery(struct dax_device *dax_dev, void **kaddr) > +{ > + if (dax_recovery_capable(dax_dev)) { > + set_bit(DAXDEV_RECOVERY, (unsigned long *)kaddr); > + return 0; > + } > + return -EINVAL; Setting a random bit on a passed in memory address looks a little dangerous to me. Also I'd return early for the EINVAL case to make the flow a little more clear. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/dm-devel