On 02/04/2015 01:41 PM, Mike Snitzer wrote:
On Mon, Dec 08 2014 at 5:32P -0500,
Josef Bacik <jbacik@xxxxxx> wrote:
This is my latest attempt at a target for testing power fail and fs consistency.
This is based on the idea Zach Brown had where we could just walk through all
the operations done to an fs in order to verify we're doing the correct thing.
There is a userspace component as well that can be found here
https://github.com/josefbacik/log-writes
It is very rough as I just threw it together to test the various aspects of how
you would want to replay a log to test it. Again I would love feedback on this,
I really want to have something that we all think is usefull and eventually
incorporate it into xfstests.
hey josef,
i finally took a quick look at your target. has this target proven
useful to you (or others) since you posted? would you still like to see
this land upstream?
i see no need to stack discard limits if discards are supported by the
underlying device (you'll get that for free via blk_stack_limits).
here is a patch that applies ontop of your original submission. mostly
whitespace (i'm not pedantic about 80 char limit, etc). but i did
include some small improvements and FIXMEs/questions in the patch:
Hello,
Yup I still want to land this upstream, I've been using it to find
balance bugs and other things in btrfs. With the holidays and all my
family medical things going on recently I haven't had as much time to
put into this as I wanted but I've made some improvements to it
recently. My plan was to wait until LSF so I could present my ideas to
all the FS and DM guys at the same time to make sure we were happy with
this approach and then submit shortly after that.
I will apply this and look through the FIXME's soon and send another
update to make sure things still look good. Thanks for looking at this,
Josef
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