Re: What happened to the sb writeback list (aka sync efficiency) fix?

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On Tue, Jun 21, 2016 at 02:54:46PM +0200, Jan Kara wrote:
> On Mon 20-06-16 12:43:34, Brian Foster wrote:
> > On Mon, Jun 20, 2016 at 01:46:38PM +0000, Holger Hoffstätte wrote:
> > > 
> > > Once upon a time there was this fine patch set called
> > > "improve sync efficiency with sb inode wb list" [1]
> > > by Brian Foster, who fixed up the original version by Josef Bacik.
> > > 
> > > I've been running with this since then and it seems to work flawlessly,
> > > yet it doesn't seem that this ever got merged..does anybody know why?
> > > 
> > > Waiman Long has been working on something similar with his per-CPU
> > > lists, but those patches naturally collide a bit, so I'm wondering
> > > what's what.
> > > 
> > > Fwiw the effect of the wb list on systems with many cached inodes is
> > > phenomal; it would be a shame if this went unmerged.
> > > 
> > 
> > FWIW, the latest version posted was v7:
> > 
> > http://thread.gmane.org/gmane.linux.file-systems/104078
> > 
> > Thanks for the testing feedback. Unfortunately, I've not really heard
> > any feedback on getting this merged. I'm not sure the previous
> > version(s) by Josef and Dave got much traction either. :(
> 
> Actually it would be a pitty to have this dropped. Please rebase & resend
> the patches and send them to AKPM asking him to merge them because Al isn't
> replying... That should make things moving.
> 

Sure, it rebases clean so I can post a v8 after I get a chance to run
some regression tests.

Holger,

Care to offer a Tested-by?

Brian

> 								Honza
> -- 
> Jan Kara <jack@xxxxxxxx>
> SUSE Labs, CR
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