Hi Carlos, Reviews have completed for the code that adds reverse mapping and reflink to the realtime device. With these changes, the realtime volume finally reaches feature parity with the data device! This is the base for building more functionality into xfs, such as the zoned storage support that Christoph posted last week. Since we're now past 6.13-rc4, I seek to have these patches merged for 6.14, after spending eight years on development. Since patchbomb v6.1 I've added Christoph's review tags, and folded in the documentation updates requested during review. The first patchset are bug fixes for 6.13. Could these be merged asap? The second and third patchsets are all cleanups and refactoring so that we can fully support having btrees rooted in an inode's data fork. This is necessary because the generic btree code only supports using the immediate area as an internal tree node -- conversion from extents to bmbt format only happens when there are too many leaf records to fit in the immediate area. Therefore, we need to remodel it to support storing records in the immediate area. We also need to be able to reserve space for future btree expansion, so the second patchset enables tracking per-inode reservations from the free space. The fourth patchset ports reverse mapping btree to the realtime device, which mainly consists of constructing a btree in an inode, linking the inode into the metadata directory tree, and updating the log items to handle rt rmap update log intent items. The fifth patchset ports the refcount btree, block sharing, and copy on write to the realtime device. Please have a look at the git tree links for code changes: https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfs-linux.git/log/?h=realtime-reflink_2024-12-23 https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfsprogs-dev.git/log/?h=realtime-reflink_2024-12-23 https://git.kernel.org/pub/scm/linux/kernel/git/djwong/xfstests-dev.git/log/?h=realtime-reflink_2024-12-19 (fstests is still behind because I haven't rebased atop the parallel fstests work) --D
