On Wed, Oct 9, 2024 at 4:44 PM Darrick J. Wong <djwong@xxxxxxxxxx> wrote: > > n00b question: is xa_store(..., NULL) the same as xa_erase? > > If it is, then should the documentation mention that xa_store(NULL) is > the same as xa_erase, and that both of these operations will cause the > xarray to forget about that range? They're not quite the same in the presence of `XA_FLAGS_ALLOC`. Per the docs: > Unlike a normal XArray, storing NULL will mark the entry as being in use [...] See https://docs.kernel.org/core-api/xarray.html#allocating-xarrays.
