On Tue, Jul 19, 2022 at 02:44:58PM -0700, Darrick J. Wong wrote: > Hi all, > > The maintainers have been besieged by a /lot/ of complaints recently > from people who format tiny filesystems and growfs them into huge ones, > and others who format small filesystems. We don't really want people to > have filesystems with no backup superblocks, and there are myriad > performance problems on modern-day filesystems when the log gets too > small. > > Empirical evidence shows that increasing the minimum log size to 64MB > eliminates most of the stalling problems and other unwanted behaviors, > so this series makes that change and then disables creation of small > filesystems, which are defined as single-AGs fses, fses with a log size > smaller than 64MB, and fses smaller than 300MB. > > v2: rebase to 5.19 > v3: disable automatic detection of raid stripes when the device is less > than 1G to avoid formatting failures > > If you're going to start using this mess, you probably ought to just > pull from my git trees, which are linked below. > > This is an extraordinary way to destroy everything. Enjoy! > Comments and questions are, as always, welcome. > Both changes looks good to me, but IMHO we really require it to be documented in manpages otherwise we'll get (even more) questions about "why can't I create small FS'es anymore?". But anyway, I can help with the manpages once these patches hit for-next if you are ok with it. -- Carlos Maiolino
