Omar Sandoval <osandov@xxxxxxxxxxx> wrote: > Yes I still have those patches lying around and I'd be happy to dust > them off and resend them. That would be great if you could. I could use them here: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/log/?h=fscache-iter I'm performing invalidation by creating a vfs_tmpfile() and then replacing the on-disk file whilst letting ops resume on the temporary file. Replacing the on-disk file currently, however, involves unlinking the old one before I can link in a new one - which leaves a window in which nothing is there. I could use one or more side dirs in which to create new files and rename them over, but that has potential lock bottleneck issues - and is particularly fun if an entire volume is invalidated (e.g. AFS vos release). David