lkml.org 
[lkml]   [2005]   [Nov]   [8]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 5/8] Direct Migration V2: upgrade MPOL_MF_MOVE and sys_migrate_pages()
On Wed, 9 Nov 2005, KAMEZAWA Hiroyuki wrote:

> Christoph Lameter wrote:
> > + err = migrate_pages(pagelist, &newlist, &moved, &failed);
> > +
> > + putback_lru_pages(&moved); /* Call release pages instead ?? */
> > +
> > + if (err >= 0 && list_empty(&newlist) && !list_empty(pagelist))
> > + goto redo;
>
>
> Here, list_empty(&newlist) is needed ?
> For checking permanent failure case, list_empty(&failed) looks better.

We only allocate 256 pages which are on the newlist. If the newlist is
empty but there are still pages that could be migrated
(!list_empty(pagelist)) then we need to allocate more pages and call
migrate_pages() again.

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-11-09 04:26    [W:1.953 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site