lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:	Tue, 14 Oct 2014 14:15:55 +0900
From:	Joonsoo Kim <>
To:	Dan Streetman <>
Cc:	Minchan Kim <>,
	Jerome Marchand <>,
	Sergey Senozhatsky <>,
	linux-kernel <>,,
	Linux-MM <>,
	Andrew Morton <>,
	Luigi Semenzato <>,
	"seungho1.park" <>,
	Nitin Gupta <>
Subject: Re: [PATCH v4] zsmalloc: merge size_class to reduce fragmentation

On Thu, Oct 02, 2014 at 10:47:51AM -0400, Dan Streetman wrote:
> >> I think that using ref would makes intuitive code. Although there is
> >> some memory overhead, it is really small. So I prefer to this way.
> >>
> >> But, if you think that removing ref is better, I will do it.
> >> Please let me know your final decision.
> >
> > Yeb, please remove the ref. I want to keep size_class small for
> > cache footprint.
> i think a foreach_size_class() would be useful for zs_destroy_pool(),
> and in case any other size class iterations are added in the future,
> and it wouldn't require the extra ref field.  You can use the fact
> that all merged size classes contain a class->index of the
> highest/largest size_class (because they all point to the same size
> class).  So something like:


Using class->index looks good idea, but, I'd like not to add new
macro here, because, it isn't needed in other place now.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists