lkml.org 
[lkml]   [2008]   [Dec]   [4]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Device loses barrier support (was: Fixed patch for simple barriers.)
On Thu, Dec 04, 2008 at 06:48:38PM +0100, Andi Kleen wrote:
> I think. Just the low level xfs_buf interface happens to use the asynchronous
> callbacks instead of calling into the block layer directly like jbd et.al.
> do.

Only delwri buffers are delayed in XFS, but the journaling code only
uses async buffers which *synchronously* call into the block layer, but
just don't wait for it to complete..



\
 
 \ /
  Last update: 2008-12-04 18:55    [W:1.936 / U:0.048 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site