On Thu, Mar 11, 2010 at 04:11:57PM +0300, Dmitry Monakhov wrote: > Christoph Hellwig <hch@xxxxxxxxxxxxx> writes: > > > On Thu, Mar 04, 2010 at 09:34:33PM +0300, Dmitry Monakhov wrote: > >> This patch add project inode identifier. Project ID may be used as > >> auxiliary owner specifier in addition to standard uid/gid. > > > > There's really no reason to make this a config option. > Project id feature is not likely to be widely used (i hope only > at the beginning). Personally this is not bad to avoid config option. > At least we will have many new users for free. But I predict > many angry voices against enabling this feature by default. How would those "angry voices" notice this feature? --b. > Look, we even have CONFIG_BLOCK option at the time when this option > is enabled in 99.99% of systems. > > Let's ask Jan an Al: > Will they accept genetic projectid support without appropriate config option? > > And xattrs > > are a rather bad interfaces to this, so even if a filesystem has to > > resort to implement the project ID this way, this should be hidden > > inside the filesystem. > Only one question "Why not?". > I've tried to count pro and contra options. > *PRO* > 1) xattr interface already available, we don't have to invent a new one > 2) xattrs are supported by most of backup tools and other fs-related > tools. > 3) xattr interface is rather simple and flexible. Filesystem is free > to store it's projectid whenever it likes to, xattr is just an > manipulation interface. > *CONTRA* > 1) XATTR_CREATE/XATTR_REPLACE is useless for project id since > inode is belongs to default project (id == 0) > > > -- > 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 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
