Hi Alexandre, > About touching LRU, I thought that the I/O worker already updated the > LRU list every operation, does it go through a different path?
You are right, FileAccess() in fd.c moves the file to the head of its LRU ring on every read and write, so that part costs nothing new. I was wrong there. I still think v3 is enough for this patch, but I will leave it to Nazir and Andres. Thanks, Shihao
