lkml.org 
[lkml]   [2011]   [Apr]   [12]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectCONFIG_EXT4_USE_FOR_EXT23: rootfs shows as ext2 instead of ext4
Ted 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.

Eg. I test it by building my own kernel (2.6.38.2), with ext4 built-in,
no initramfs required, and boot:

root=/dev/sda1 init=/bin/bash
...
$ mount /proc
$ cat /proc/mounts
/dev/root / ext2 ro,relatime,barrier=1,data=ordered 0 0

So.. it shows "ext2" instead of "ext4". That really looks like a bug.
Especially since it appears to be using journaling regardless.

Building the kernel without CONFIG_EXT4_USE_FOR_EXT23
results in a proper "ext4" mount entry in /proc/mounts.



\
 
 \ /
  Last update: 2011-04-12 19:27    [W:0.074 / U:2.000 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site