On Tue, 22 Jun 2021 at 14:25, Fengnan Chang <changfengnan@xxxxxxxx> wrote: > > Unh, it seems i_writecount not work. > If we modify file through lowerfs, i_writecount won't change, but the > size already changed. > For example: > echo "111" > /lowerfs/test > ls -l /upper/test > echo "2222" >> /lowerfs/test > ls -l /upper/test > > So, can you describe your test enviroment? including kernel version and > fsx parameters, I will check it. linux-5.13-rc5 + patch mkdir /tmp/test libfuse/example/passthrough_ll -ocache=always,writeback /mnt/fuse/ fsx-linux -N 1000000 /mnt/fuse/tmp/test/fsx Thanks, Miklos
