Build with -Os, bump local version
Revert dynamic fsync control. I suspect it is causing occasional panics.

Revert "dynamic fsync: don't disable fdatasync() (conflict: remove fsync toggle)"

This reverts commit 247c811e76376de07c253eb5f6aed85008940340.

Revert "dynamic fsync: favor true case since most will be using this feature"

This reverts commit 6a47fc8b1e918e59c5fb75d5eabeeff1aced1b08.

Revert "dynamic fsync: add kernel panic notifier to force flush outstanding data"

This reverts commit c411604a82df8344ac6fe68cabf55108293e1b9a.

Revert "dynamic fsync: add reboot notifier to force flush outstanding data"

This reverts commit 18c7d3abfaf9ea0eef7e0857c00253c403653940.

Revert "dynamic filesync: add some cache optimizations"

This reverts commit b4a04d3d3b5f2bef497b4275397c66c11a9daa66.

Revert "fs/dyn_fsync: check dyn fsync control's active prior to performing fsync ops"

This reverts commit b9906a5897812a5dda8ff7edb01477cce2128e71.

Revert "fs/dyn_sync_cntrl: dynamic sync control"

This reverts commit 447ad06921a29b43fd09b9d7ff23d9ef45a83cad.
bump local version