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Re: [dm-devel] Bcache upstreaming



On Wed, Jan 30 2013 at  8:48pm -0500,
Kent Overstreet <koverstreet google com> wrote:

> On Wed, Jan 30, 2013 at 05:27:47PM -0800, Kent Overstreet wrote:
> > On Wed, Jan 30, 2013 at 05:26:27PM -0800, Kent Overstreet wrote:
> > > On Wed, Jan 30, 2013 at 07:10:21PM -0500, Mike Snitzer wrote:
> > > > On Wed, Jan 30 2013 at  6:36pm -0500,
> > > > Kent Overstreet <koverstreet google com> wrote:
> > > > 
> > > > > 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?
> > > > 
> > > > Great, thanks, the other outstanding report was this one:
> > > > https://lkml.org/lkml/2013/1/17/554
> > > 
> > > Yep, that was the discard bug I just fixed.
> > 
> > Err I misread - nope, I missed that one. Taking a look now.
> 
> Fucking shrinkers, i swear that's one of the most nonsensical APIs I've
> yet encountered.
> 
> This is going to take some thought. For now, just disable the shrinker:
> 
> echo 1 > /sys/fs/bcache/<uuid>/internal/btree_shrinker_disabled

Oddly I don't have a /sys/fs/bcache/<uuid> even though I have created
/dev/bcache0

The only files I have in /sys/fs/bcache/ are: register  register_quiet


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