previous: https://lore.kernel.org/linux-fsdevel/20240206-aufwuchs-atomkraftgegner-dc53ce1e435f@brauner/T/ Changes since v1: - super_set_uuid() helper, per Dave - nix FS_IOC_SETUUID - Al raised this and I'm in 100% agreement, changing a UUID on an existing filesystem is a rare operation that should only be done when the filesystem is offline; we'd need to audit/fix a bunch of stuff if we wanted to support this - fix iocl numberisng, no longer using btrfs's space - flags argument in struct fsuuid2 is gone; since we're no longer setting this is no longer needed. As discussed previously, this interface is only for exporting the public, user-changable UUID (and there's now a comment saying that this exports the same UUID that libblkid reports, per Darrick). Darrick also noticed that fscrypt (!) is using sb->s_uuid, which looks busted - they want to be using the "this can never change" UUID, but that is not an item for this patchset. - FS_IOC_GETSYSFSNAME -> FS_IOC_GETSYSFSPATH, per Darrick (the commit messages didn't get updated, whoops); and there's now a comment to reflect that this patch is also for finding filesystem info under debugfs, if present. Christain, if nothing else comes up, are you ready to take this? Cheers, Kent Kent Overstreet (7): fs: super_set_uuid() overlayfs: Convert to super_set_uuid() fs: FS_IOC_GETUUID fat: Hook up sb->s_uuid fs: FS_IOC_GETSYSFSNAME xfs: add support for FS_IOC_GETSYSFSNAME bcachefs: add support for FS_IOC_GETSYSFSNAME fs/bcachefs/fs.c | 3 ++- fs/ext4/super.c | 2 +- fs/f2fs/super.c | 2 +- fs/fat/inode.c | 3 +++ fs/gfs2/ops_fstype.c | 2 +- fs/ioctl.c | 33 +++++++++++++++++++++++++++++++++ fs/kernfs/mount.c | 4 +++- fs/ocfs2/super.c | 4 ++-- fs/overlayfs/util.c | 14 +++++++++----- fs/ubifs/super.c | 2 +- fs/xfs/xfs_mount.c | 4 +++- include/linux/fs.h | 10 ++++++++++ include/uapi/linux/fs.h | 27 +++++++++++++++++++++++++++ mm/shmem.c | 4 +++- 14 files changed, 99 insertions(+), 15 deletions(-) -- 2.43.0
