On Fri, May 01, 2015 at 04:55:39PM -0400, Jeff Moyer wrote:
> Shaohua Li writes:
>
> > Last patch makes plug work for multiple queue case. However it only
> > works for single disk case, because it assumes only one request in the
> > plug list. If a task is accessing multiple disks, eg MD/DM, the
Shaohua Li writes:
> Last patch makes plug work for multiple queue case. However it only
> works for single disk case, because it assumes only one request in the
> plug list. If a task is accessing multiple disks, eg MD/DM, the
> assumption is wrong. Let blk_attempt_plug_merge() record request fr
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