On Fri, 25 Jun 2010 22:46:38 +0100 David Howells <dhowells@xxxxxxxxxx> wrote: > Jeff Layton <jlayton@xxxxxxxxx> wrote: > > > Looks like it mostly uses the ctime. IMO, the mtime would be a better > > choice since it changes less frequently, but I don't guess that it > > matters very much. > > I'd've thought mtime changes more frequently since that's altered when data is > written. ctime is changed when attributes are changed. > IIUC, updating mtime for a write is also an attribute change, and that affects ctime. According to the stat(2) manpage: The field st_ctime is changed by writing or by setting inode informa- tion (i.e., owner, group, link count, mode, etc.). > Note that Ext4 appears to have a file creation time field in its inode > (struct ext4_inode::i_crtime[_extra]). Can Samba be made to use that? > Is it exposed to userspace in any (standard) way? It would be handy to have that. While we're wishing...it might also be nice to have a standard way to get at the i_generation from userspace too. -- Jeff Layton <jlayton@xxxxxxxxx> -- 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