Lazytime undone by/not working with remount?

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Hi,

playing with lazytime on 4.0.4-rc1 + yesterday's fencepost patch) I noticed
something odd. Mounting secondary (non-root) partitions with lazytime works
fine, but / does not seem to retain the value from fstab - apparently because
it is remounted rw during boot, and lazytime gets swallowed/undone.

Same effect when trying to remount manually with lazytime:

tux>findmnt /
TARGET SOURCE    FSTYPE OPTIONS
/      /dev/sda1 ext4   rw,noatime

tux>mount -o lazytime,remount / 

tux>dmesg 
[ 5208.482505] EXT4-fs (sda1): re-mounted. Opts: (null)

tux>findmnt /                  
TARGET SOURCE    FSTYPE OPTIONS
/      /dev/sda1 ext4   rw,noatime

tux>mount --version
mount from util-linux 2.26.2 (libmount 2.26.0: assert, debug)

Newly mounting unmounted partitions works fine.

Any ideas?

Holger

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