Christian Brauner 313c47f4fe
fs: use nullfs unconditionally as the real rootfs ...
Remove the "nullfs_rootfs" boot parameter and simply always use nullfs.
The mutable rootfs will be mounted on top of it. Systems that don't use
pivot_root() to pivot away from the real rootfs will have an additional
mount stick around but that shouldn't be a problem at all. If it is
we'll rever this commit.
This also simplifies the boot process and removes the need for the
traditional switch_root workarounds.
Suggested-by: Jeff Layton <jlayton@kernel.org >
Signed-off-by: Christian Brauner <brauner@kernel.org >
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313c47f4fe