Currently the only way to pre populate an XFS partition is via the prototype file. While it works it has some limitations like: - not allowed spaces in file names - not preserving timestamps of original inodes This series adds a new -P option to mkfs.xfs that allows users to populate a newly created filesystem directly from an existing directory. While similar to the prototype functionality, this doesn't require writing a prototype file. The implementation preserves file and directory attributes (ownership, permissions, timestamps) from the source directory when copying content to the new filesystem. [v1] -> [v2] remove changes to protofile spec ensure backward compatibility [v2] -> [v3] use inode_set_[acm]time() as suggested avoid copying atime and ctime they are often problematic for reproducibility, and mtime is the important information to preserve anyway [v3] -> [v4] rewrite functionality to populate directly from an input directory this is similar to mkfs.ext4 option. Luca Di Maio (4): proto: expose more functions from proto mkfs: add -P flag to populate a filesystem from a directory man: document -P flag to populate a filesystem from a directory populate: add ability to populate a filesystem from a directory man/man8/mkfs.xfs.8.in | 7 + mkfs/Makefile | 2 +- mkfs/populate.c | 287 +++++++++++++++++++++++++++++++++++++++++ mkfs/populate.h | 4 + mkfs/proto.c | 33 ++--- mkfs/proto.h | 22 ++++ mkfs/xfs_mkfs.c | 22 +++- 7 files changed, 352 insertions(+), 25 deletions(-) create mode 100644 mkfs/populate.c create mode 100644 mkfs/populate.h Signed-off-by: Luca Di Maio <luca.dimaio1@xxxxxxxxx> -- 2.49.0
