Thread (3 messages) 3 messages, 2 authors, 2014-02-27

Re: Changes in /sys/bcache in kernel 3.13

From: Darrick J. Wong <hidden>
Date: 2014-02-19 02:32:19

On Tue, Feb 18, 2014 at 11:28:24PM +0100, Rolf Fokkens wrote:
Hi All,

bcache-status stopped working in kernel 3.13, see also:
https://bugzilla.redhat.com/show_bug.cgi?id=1066555
Oh, there are RH bugzillas about bcache-status problems?  I guess that makes me
'upstream'.  :D

Well, I guess I'll fix the no-newline-at-end problem too.
It's probably related to the change "Fix dirty_data accounting" in
kernel 3.13-rc4. What specifically has changes is the fact that that
/sys/fs/bcache/<UUID>/dirty_data has been removed, which breaks
bcache-status (https://gist.github.com/djwong/6343451). Just
removing the check / reference to this dirty_data item fixes
bcache-status. Or has it been replaced by a specific item?
<shrug> I simply removed the dirty_data line and prettied up some of the
formatting too.  I don't have a problem with pulling the dirty data stats off
the backing device.

Gist updated.

--D
Oh, BTW: bcache.txt still refers to dirty_data in
/sys/fs/bcache/<UUID> which doesn't seem correct to me.

Cheers,

Rolf
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