[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 Tue, Jun 15, 2010 at 05:30:44PM +0100, Mel Gorman wrote:
> After grepping through fs/, it was only xfs and btrfs that I saw were
> specfically disabling writepage from reclaim context.

ext4 doesn't specificly disable writeback from reclaim context, but
in a rather convoluted way disabled basically all writeback through
->writepage. The only thing allowed is overwrites of already allocated

In addition to that reiserfs also frefuses to write back pages
from reclaim context if they require a transaction, which is the case
if the file was written to through mmap.

 \ /
  Last update: 2010-06-15 18:37    [W:0.129 / U:5.492 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site