Jingbo Xu <jefflexu at linux.alibaba.com> wrote: > The xarray iteration only holds RCU I would say "the RCU read lock". Also, I think you've copied the code to which my dodgy-maths fix applies: https://lore.kernel.org/linux-fsdevel/166757988611.950645.7626959069846893164.stgit@warthog.procyon.org.uk/ David