[lkml]   [2010]   [Jun]   [15]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [RFC PATCH 0/6] Do not call ->writepage[s] from direct reclaim and use a_ops->writepages() where possible
On 06/15/2010 10:51 AM, Mel Gorman wrote:
> On Tue, Jun 15, 2010 at 04:00:11PM +0200, Andrea Arcangeli wrote:
>> Hi Mel,
>> I know lots of people doesn't like direct reclaim,
> It's not direct reclaim that is the problem per-se, it's direct reclaim
> calling writepage and splicing two potentially deep call chains
> together.

I have talked to Mel on IRC, and the above means:

"calling alloc_pages from an already deep stack frame,
and then going into direct reclaim"

That explanation would have been helpful in email :)

All rights reversed

 \ /
  Last update: 2010-06-15 16:59    [W:0.097 / U:14.176 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site