[lkml]   [2012]   [Jun]   [20]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH 09/12] nfs: disable data cache revalidation for swapfiles
On 06/20/2012 05:37 AM, Mel Gorman wrote:
> The VM does not like PG_private set on PG_swapcache pages. As suggested
> by Trond in, this patch disables
> NFS data cache revalidation on swap files. as it does not make
> sense to have other clients change the file while it is being used as
> swap. This avoids setting PG_private on swap pages, since there ought
> to be no further races with invalidate_inode_pages2() to deal with.
> Since we cannot set PG_private we cannot use page->private which
> is already used by PG_swapcache pages to store the nfs_page. Thus
> augment the new nfs_page_find_request logic.
> Signed-off-by: Peter Zijlstra<>
> Signed-off-by: Mel Gorman<>

Acked-by: Rik van Riel<>

 \ /
  Last update: 2012-06-20 20:01    [W:0.149 / U:2.076 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site