Ted> On Tue, Apr 12, 2011 at 01:25:08PM -0400, Mark Lord wrote:"Ted" == Ted Ts'o<tytso@xxxxxxx> writes:Ted> It's a cosemtic bug, I agree, but I'm not sure why you consider itTed et al.
I've only just noticed this, so I have no idea how long it has been this way.
When I build a kernel with CONFIG_EXT4_USE_FOR_EXT23=y and boot from it,
the ext4 root filesystem shows up as "ext2" mode, rather than "ext4".
This looks very wrong to me, and quite dangerous.
Ted> dangerous.
Ted> CONFIG_EXT4_USE_FOR_EXT23 means that ext4 registers itself as
Ted> ext2 and/or ext3, if ext2 and/or ext3 are not configured into the
Ted> kernel. Since the kernel tries to mount the file system as ext2,
Ted> ext3, and then ext4, and uses whichever one works first.
Should it instead be: CONFIG_EXT4_MASQUERADE_AS_EXT23 instead, so
it's blindingly obvious what's going on here.
John