[Xen-devel] RE: A question of grant table version

[MaoXiaoyun <tinnycloud@xxxxxxxxxxx>]

Sorry, this is grant-table.c history in 2.6.31
http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=history;f=drivers/xen/grant-table.c;h=6c6f8848537aa240ae09dbb87a30927e06a0a044;hb=641c127b67b3b1a4f6a79b6189ed2189cec46012
 

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From: tinnycloud@xxxxxxxxxxx
To: xen-devel@xxxxxxxxxxxxxxxxxxx
CC: tinnycloud@xxxxxxxxxxx
Subject: RE: A question of grant table version
Date: Sat, 9 Apr 2011 11:35:33 +0800

Also, it looks like some commit has been missed to apply to 2.6.32.36
 
grant-table.c history in 2.6.31
http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=history;f=drivers/xen/grant-table.c;h=09bb7425cd46097b3d96feb342508069c610d78d;hb=bb1a15e55ec665a64c8a9c6bd699b1f16ac01ff4
 
below commit is not found in 2.6.32

2009-10-07	Steven Smith	Extend the grant tables implementation with an improved...	blob | commitdiff | diff to current
2009-10-07	Steven Smith	Add support for transitive grants.	blob | commitdiff | diff to current
2009-10-07	Steven Smith	Add support for copy only (sub-page) grants.	blob | commitdiff | diff to current
2009-10-07	Steven Smith	Introduce support for version 2 grant tables. Use...	blob | commitdiff | diff to current
2009-10-07	Steven Smith	Fix a long-standing memory leak in the grant tables...	blob | commitdiff | diff to current
2009-10-07	Steven Smith	Introduce a live_maps facility for tracking which domai...	blob | commitdiff | diff to current

 Am I right?
 
> Subject: A question of grant table version
> From: tinnycloud@xxxxxxxxxxx
> Date: Sat, 9 Apr 2011 09:28:06 +0800
> To: xen-devel@xxxxxxxxxxxxxxxxxxx
>
> Hi
>
> I have a question on grant table version.
> In 2.6.31 pvops kernel, there is a gnttab_request_version to request using version 2.
> But this cannot be found in 2.6.3236 pvops kernel, that is it uses version 1.
>
> So, the fact is newer kernel use older grant table version, it doesn,t make sense to me.
> Could someone comfirm it is on purpose?
>
> Many thanks.

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