lkml.org 
[lkml]   [2007]   [Apr]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Pagecache: find_or_create_page does not call a proper page allocator function
On Tue, 24 Apr 2007, Andrew Morton wrote:

> > A highmem page can have buffers???
>
> yep. Take a 4k page which is stored in four discontiguous 1k disk blocks. The
> data at page_buffers(page) is the sole way in which we track which parts of
> the page belong to which blocks of the disk.

But I see no use of kmap for buffer access? The data is not accessible.


-
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: 2007-04-24 22:15    [W:1.059 / U:0.008 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site