On Thu, Mar 7, 2024 at 11:45 AM Kent Overstreet <kent.overstreet@xxxxxxxxx> wrote: > > On Thu, Mar 07, 2024 at 10:37:13AM -0600, Steve French wrote: > > > Which API is used in other OS to query the offline bit? > > > Do they use SMB specific API, as Windows does? > > > > No it is not smb specific - a local fs can also report this. It is > > included in the attribute bits for files and directories, it also > > includes a few additional bits that are used by HSM software on local > > drives (e.g. FILE_ATTRIBUTE_PINNED when the file may not be taken > > offline by HSM software) > > ATTRIBUTE_HIDDEN > > ATTRIBUTE_SYSTEM > > ATTRIBUTE_DIRECTORY > > ATTRIGBUTE_ARCHIVE > > ATTRIBUTE_TEMPORARY > > ATTRIBUTE_SPARSE_FILE > > ATTRIBUTE_REPARE_POINT > > ATTRIBUTE_COMPRESSED > > ATTRIBUTE_NOT_CONTENT_INDEXED > > ATTRIBUTE_ENCRYPTED > > ATTRIBUTE_OFFLINE > > we've already got some of these as inode flags available with the > getflags ioctl (compressed, also perhaps encrypted?) - but statx does > seem a better place for them. > > statx can also report when they're supported, which does make sense for > these. > > ATTRIBUTE_DIRECTORY, though? > > we also need to try to define the semantics for these and not just dump > them in as just a bunch of identifiers if we want them to be used by > other things - and we do. They are all pretty clearly defined, but many are already in Linux, and a few are not relevant (e.g. ATTRIBUTE_DIRECTORY is handled in mode bits). I suspect that Macs have equivalents of most of these too. -- Thanks, Steve
