On Tue, Jan 26, 2021 at 02:17:52PM +0100, Jan Kara wrote: > Well, I don't think that "wait until unfrozen" is that strange e.g. for > Q_SETQUOTA - it behaves like setxattr() or any other filesystem > modification operation. And IMO it is desirable that filesystem freezing is > transparent for operations like these. For stuff like Q_QUOTAON, I agree > that returning EBUSY makes sense but then I'm not convinced it's really > simpler or more useful behavior... If we want it to behave like other syscalls we'll just need to throw in a mnt_want_write/mnt_drop_write pair. Than it behaves exactly like other syscalls.
