[RFC]xfs: using GFP_NOFS for blkdev_issue_flush

[Dave Chinner]

On Mon, Apr 16, 2012 at 02:58:21PM +0800, Shaohua Li wrote:
> On 4/16/12 2:49 PM, Shaohua Li wrote:
> >
> >flush request is issued in transaction commit code path usually, so
> >looks using
> >GFP_KERNEL to allocate memory for flush request bio falls into the classic
> >deadlock issue (memory reclaim recursion). Use GFP_NOFS to avoid recursion
> >from reclaim context. Per Dave Chinner, there is only blkdev_issue_flush
> >might
> >be buggy here. But using GFP_NOFS by default for all calls should not
> >matter.

Can you update the commit message like I suggested previously?

Cheers,

Dave.

-- 
Dave Chinner
david at fromorbit.com