Hi Folks, As I told many people at Vault last week, I wrote a document outlining how we should modify the on-disk structures of XFS to support host aware SMR drives on the (long) plane flights to Boston. TL;DR: not a lot of change to the XFS kernel code is required, no specific SMR awareness is needed by the kernel code. Only relatively minor tweaks to the on-disk format will be needed and most of the userspace changes are relatively straight forward, too. The source for that document can be found in this git tree here: git://git.kernel.org/pub/scm/fs/xfs/xfs-documentation in the file design/xfs-smr-structure.asciidoc. Alternatively, pull it straight from cgit: https://git.kernel.org/cgit/fs/xfs/xfs-documentation.git/tree/design/xfs-smr-structure.asciidoc Or there is a pdf version built from the current TOT on the xfs.org wiki here: http://xfs.org/index.php/Host_Aware_SMR_architecture Happy reading! Cheers, Dave. -- Dave Chinner david@xxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
