Messages in this thread | | | Date | Thu, 12 Jun 2008 15:05:58 -0400 | From | Rik van Riel <> | Subject | Re: [PATCH] undo the brd.c part of ramfs-and-ram-disk-pages-are-unevictable.patch |
| |
On Thu, 12 Jun 2008 15:00:57 -0400 Lee Schermerhorn <Lee.Schermerhorn@hp.com> wrote:
> On Thu, 2008-06-12 at 13:53 -0400, Rik van Riel wrote: > > Undo the brd.c part of ramfs-and-ram-disk-pages-are-unevictable.patch. > > The brd pages do not live on the LRU at all, so there is no need to > > play these tricks. > > Does this mean that these pages cannot be migrated? E.g., to evacuate > memory for hotplug? Looks like all paths to migrate_pages() construct a > list of pages to migrate by isolating them from the lru > [isolate_lru_page()]. Any pages not found in the lru are skipped.
It looks like that, indeed.
-- All Rights Reversed
| |