[dm-devel] Bcache upstreaming

[Joseph Glanville]

On 31 January 2013 10:36, Kent Overstreet <koverstreet at google.com> wrote:
> On Thu, Jan 17, 2013 at 03:41:04AM -0800, Kent Overstreet wrote:
>> On Wed, Jan 16, 2013 at 09:27:28PM -0500, Mike Snitzer wrote:
>> > On Mon, Jan 14 2013 at  5:53pm -0500,
>> > Mike Snitzer <snitzer at redhat.com> wrote:
>> >
>> > > On Mon, Jan 14 2013 at  5:37pm -0500,
>> > > Kent Overstreet <koverstreet at google.com> wrote:
>> > >
>> > > > Want to try again with the latest bcache-for-upstream branch? I fixed
>> > > > all that sysfs stuff, but I wasn't seeing the original build error so
>> > > > I'd appreciate if you verify I did in fact fix that issue.
>> > >
>> > > Will do, thanks Kent.
>> >
>> > I hit the crash below if I do this in a script:
>> >
>> > echo 1 > /sys/block/bcache0/bcache/cache/unregister
>> > echo 1 > /sys/block/bcache0/bcache/stop
>>
>> Thanks - I reproduced it, trying to figure out the sanest way to fix it.
>> This is not the prettiest area of the code :P
>
> And, I finally have a fix for it up.
>
> Fixed a bunch of other bugs today too... notably the bug where it'd
> crash if you enabled discards. Was there anything else you or anyone
> else was hitting?
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Last time I checked, dirty data could still appear as a negative
number, did you get around to fixing that one?

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