On Wed, Oct 17, 2018 at 09:47:18PM -0700, Darrick J. Wong wrote: > > > +#define REMAP_FILE_DEDUP (1 << 0) > > > + > > > +/* > > > + * These flags should be taken care of by the implementation (possibly using > > > + * vfs helpers) but can be ignored by the implementation. > > > + */ > > > +#define REMAP_FILE_ADVISORY (0) > > > > ??? > > Sorry if this wasn't clear. How about this? > > /* > * These flags signal that the caller is ok with altering various aspects of > * the behavior of the remap operation. The changes must be made by the > * implementation; the vfs remap helper functions can take advantage of them. > * Flags in this category exist to preserve the quirky behavior of the hoisted > * btrfs clone/dedupe ioctls. > */ Something like "currently we have no such flags, but some will appear in subsequent commits", removed once such flags do appear, perhaps?
