On Fri, Aug 30, 2013 at 10:23:43AM +1000, Dave Chinner wrote: > Hi folks, > > The following 2 patches implement the BMBT owner change transaction > that is necessary to enable the XFS_IOC_SWAPEXT ioctl to operate on > v5 filesystems correctly. The first patch implements the > transactional runtime change, and the second patch implements the > recovery of that change. > > Both the run time and recovery code use the same mechanism for > changing the owner field in all the blocks in the BMBT on an inode, > and even though XFS_IOC_SWAPEXT only swaps the data fork, the code > has been written to be fork neutral so if we even need to swap > attribute forks it should just work for that, too. > > Further, because the BMBT code uses the generic btree > infrastructure, the btree modification is done as a generic function > as well and so should work for all types of btrees supported by the > generic code. Hence if the need arises we can easily change the > owner of any btree that uses the generic code. > > The testing carried out is documented in the description of the > second patch. > > AFAIA, this is the only remaining feature that the kernel v5 > filesystem implementation didn't support. Hence, with this patchset, > there are no more feature checkboxes that need to be ticked that > would prevent us from removing the experimental tag from it. Testing > is the only remaining gate to removing the tag from the kernel > code... Applied these 2. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
