Re: [PATCH] xfs: Do background CIL flushes via a workqueue

[Dave Chinner <david@xxxxxxxxxxxxx>]

On Tue, Mar 27, 2012 at 01:03:09PM -0400, Christoph Hellwig wrote:
> On Tue, Mar 27, 2012 at 12:19:41PM -0400, Vivek Goyal wrote:
> > So xfs either need to resort to similar optimizaiton where IO type from
> > both the process context is of same type or try to do all the IO from
> > one process context. 
> 
> All XFS log I/O is marked SYNC and (FUA and/or FLUSH).

Not if the filesystem is mounted nobarrier, as is recommended
for filesystems on hardware RAID with BBWCs....

Cheers,

Dave.
-- 
Dave Chinner
david@xxxxxxxxxxxxx