[LTP] [PATCH v2 3/3] statx04: Skip STATX_ATTR_COMPRESSED on Bcachefs

Cyril Hrubis chrubis@suse.cz
Fri Apr 19 15:11:27 CEST 2024


Hi!
> > > Quite likely, other filesystems does have an inode flag that is set when
> > > file has been compressed and simply report that in the foo_getattr()
> > > callback. Looking at bcachefs I supose that we need to figure out if the
> > > inode is v3 and then unpack the v3 info to get to the compressed flag,
> > > you probably know best how to do that.
> > 
> > I'm still not clear how we want to map STATX_ATTR_COMPRESSED, since it's
> > extents that are compressed, not entire files - and just reporting the
> > compression option is probably not what we want since it can be flipped
> > off, and existing data will still be compressed.
> > 
> > Do you know anything about the intended use case?
> 
> As far as I understand the flag it's a hint that the file I/O may be
> slower/need more memory because of the compression.

Ping.

Kent we are getting closer to a next LTP release, are you going to add
the compressed flag support into bcachefs or should we add bcachefs to
the test skiplist?

-- 
Cyril Hrubis
chrubis@suse.cz


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