On Wed, Aug 28, 2024 at 09:13:38AM -0700, Darrick J. Wong wrote: > Though we might have to revisit this for filesystems that don't take > i_rwsem exclusively when writing -- is that a problem? I guess if you > had two threads both writing and punching the pagecache they could get > into trouble, but that might be a case of "if it hurts don't do that". No i_rwsem for buffered writes? You can't really do that without hell breaking lose. At least not without another exclusive lock.