Oh, my bad, sorry for the SSD related mount options mess.
Thanks for the patch fixing the bug, comments inlined below.
Original Message
Subject: [PATCH] btrfs: fix nossd and ssd_spread mount option regression
From: Eric Sandeen sand...@redhat.com
To: linux-btrfs linux-btrfs
The commit
0780253 btrfs: Cleanup the btrfs_parse_options for remount.
broke ssd options quite badly; it stopped making ssd_spread
imply ssd, and it made nossd unsettable.
Put things back at least as well as they were before
(though ssd mount option handling is still pretty odd:
# mount -o
