lkml.org 
[lkml]   [2014]   [Feb]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 3.14-rc2 XFS backtrace because irqs_disabled.
On Fri, Feb 14, 2014 at 11:24:27AM +1100, Dave Chinner wrote:

> > I can fix this one easily - we already have a workqueue for doing
> > async log pushes (will split the stack between xlog_cil_force_lsn
> > and xlog_cil_push), but the reason we haven't used it for synchronous
> > log forces is that screws up fsync performance on CFQ. We don't
> > recommend CFQ with XFS anyway, so I think I'll make this change
> > anyway.
>
> Dave, the patch below should chop off the stack usage from
> xfs_log_force_lsn() issuing IO by deferring it to the CIL workqueue.
> Can you given this a run?

Looks like it's survived an overnight run..

Dave


\
 
 \ /
  Last update: 2014-02-14 17:41    [W:0.888 / U:1.952 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site