Thread (20 messages) 20 messages, 7 authors, 2012-08-21

Re: [PATCH 0/7] zram/zsmalloc promotion

From: Minchan Kim <minchan@kernel.org>
Date: 2012-08-14 06:18:18
Also in: lkml

Hi Nitin,

On Mon, Aug 13, 2012 at 10:36:47PM -0700, Nitin Gupta wrote:
On 08/13/2012 07:35 PM, Greg Kroah-Hartman wrote:
quoted
On Wed, Aug 08, 2012 at 03:12:13PM +0900, Minchan Kim wrote:
quoted
This patchset promotes zram/zsmalloc from staging.
Both are very clean and zram is used by many embedded product
for a long time.

[1-3] are patches not merged into linux-next yet but needed
it as base for [4-5] which promotes zsmalloc.
Greg, if you merged [1-3] already, skip them.
I've applied 1-3 and now 4, but that's it, I can't apply the rest
without getting acks from the -mm maintainers, sorry.  Please work with
them to get those acks, and then I will be glad to apply the rest (after
you resend them of course...)
On a second thought, I think zsmalloc should stay in drivers/block/zram
since zram is now the only user of zsmalloc since zcache and ramster are
moving to another allocator. Secondly, zsmalloc does not provide
standard slab like interface, so should not be part of mm/. At the best,
it could be moved to lib/ with header in include/linux just like genalloc.
I don't care whether it's located in /mm or wherever.
But if we move it into out of /mm, I would like to confirm it from akpm.
AFAIRC, he had a concern about that because zsmalloc used a few fields of 
struct page freely so he wanted to locate it in /mm.

Andrew, Any thought?
-- 
Kind regards,
Minchan Kim

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