lkml.org 
[lkml]   [2022]   [Sep]   [5]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH v9 3/8] block: add check when merging zone device pages
On Thu, Aug 25, 2022 at 09:24:20AM -0600, Logan Gunthorpe wrote:
> Consecutive zone device pages should not be merged into the same sgl
> or bvec segment with other types of pages or if they belong to different
> pgmaps. Otherwise getting the pgmap of a given segment is not possible
> without scanning the entire segment. This helper returns true either if
> both pages are not zone device pages or both pages are zone device
> pages with the same pgmap.
>
> Add a helper to determine if zone device pages are mergeable and use
> this helper in page_is_mergeable().
>
> Signed-off-by: Logan Gunthorpe <logang@deltatee.com>

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

\
 
 \ /
  Last update: 2022-09-05 16:36    [W:0.248 / U:1.572 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site