Hello,
I'm digging way back here - in
https://tracker.ceph.com/issues/12405#note-12, Sage said:
2017-11-29
Newer kernels fix syncfs(2) to use a dirty inode list for this. (The fix isn't in the
latest el7 kernel(s) yet, though.)
Try as I might, I can't seem to narrow down which upstream kernel
version gained this improvement. Any chance that someone remembers?
Thanks!
Josh