On 6/5/15 6:23 AM, Syed Imtiaz wrote:

Dexuan Cui <decui <at> microsoft.com> writes:

quoted

Hi Ted,
Thanks very much for the clarification!

And thanks a lot for implementing this -- I've seen the patches you 

sent out

quoted

several hours ago.

IMO it's useful to have such compatibility, e.g.,
Hyper-V guest has a fsfreeze-based feature to back up the data; the 

feature

quoted

works fine for ext4 partition, but Ubuntu's installer can create /boot
of ext2 partition by default and hence the feature can't work:
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1362574

I believe the bug will go away after Ubuntu integrates your patches.

Thanks!

Hi Theodore,
  CAn you please tell me where can i find these patches. I am unable to 
locate it. or the steps the install it ?
Do we have to install it every system that doesnt support fsfreeze in 
the ext2 fs.

To be clear, the patches were only for ext2-mounted-with-ext4.ko.
The native ext2 driver freezes w/o any problem.

The upstream commit is here:

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=bb04457

and has been fixed upstream since kernel v3.18

-Eric