On Wed, Jul 14, 2021 at 04:23:20PM -0400, Vivek Goyal wrote: > From: Christoph Hellwig <hch@xxxxxx> > > Currently the only non-blockdevice filesystems that can be used as the > initial root filesystem are NFS and CIFS, which use the magic > "root=/dev/nfs" and "root=/dev/cifs" syntax that requires the root > device file system details to come from filesystem specific kernel > command line options. > > Add a little bit of new code that allows to just pass arbitrary > string mount options to any non-blockdevice filesystems so that it can > be mounted as the root file system. > > For example a virtiofs root file system can be mounted using the > following syntax: > > "root=myfs rootfstype=virtiofs rw" > > Based on an earlier patch from Vivek Goyal <vgoyal@xxxxxxxxxx>. > > Signed-off-by: Christoph Hellwig <hch@xxxxxx> > --- > init/do_mounts.c | 43 +++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 43 insertions(+) Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
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