> Apparently the original patch didn’t send for linux stable branch. I don't know exactly what you mean, but 4.14 kernel has this patch. It's easy to verify by changed messages ("enabling ssd optimizations" vs "enabling SSD mode").
> can you ask the patch author and BTRFS maintainers I'm not sure how to ask BTRFS maintainers and why I would do so, because patch description suggests that it should be backported and has notes about it: Backporting notes Notes for whoever wants to backport this patch to their 4.9 LTS kernel: * First apply commit 951e796 "btrfs: drop the nossd flag when remounting with -o ssd", or fixup the differences manually. * The rest of the conflicts are because of the fs_info refactoring. So, for example, instead of using fs_info, it's root->fs_info in extent-tree.c -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1740143 Title: backport btrfs ssd mount option fix To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1740143/+subscriptions -- ubuntu-bugs mailing list email@example.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs