lkml.org 
[lkml]   [2012]   [May]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 1/6] Revert "mm: mempolicy: Let vma_merge and vma_split handle vma->vm_policy linkages"
(5/30/12 3:17 PM), Christoph Lameter wrote:
> On Wed, 30 May 2012, kosaki.motohiro@gmail.com wrote:
>
>> From: KOSAKI Motohiro<kosaki.motohiro@gmail.com>
>>
>> commit 05f144a0d5 removed vma->vm_policy updates code and it is a purpose of
>> mbind_range(). Now, mbind_range() is virtually no-op. no-op function don't
>> makes any bugs, I agree. but maybe it is not right fix.
>
> I dont really understand the changelog. But to restore the policy_vma() is
> the right thing to do since there are potential multiple use cases where
> we want to apply a policy to a vma.
>
> Proposed new changelog:
>
> Commit 05f144a0d5 folded policy_vma() into mbind_range(). There are
> other use cases of policy_vma(*) though and so revert a piece of
> that commit in order to have a policy_vma() function again.

sorry, I overlooked this. Commit 05f144a0d5 don't work neither regular vma
nor shmem vma. thus I can't take this proposal. sorry.


\
 
 \ /
  Last update: 2012-05-31 09:41    [W:0.561 / U:0.332 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site