Messages in this thread | | | Date | Fri, 14 Feb 2014 11:01:23 -0500 | From | Dave Jones <> | Subject | Re: 3.14-rc2 XFS backtrace because irqs_disabled. |
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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
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