On Tue, 2012-10-02 at 00:52 +0200, Willy Tarreau wrote: > 2.6.32-longterm review patch. If anyone has any objections, please let me > know. > > ------------------ > > From: Dan Williams <dan.j.willi...@intel.com> > > commit 281befa5592b0c5f9a3856b5666c62ac66d3d9ee upstream. > > The pending == 2 case no longer exists in the driver so, we can use > ioat2_ring_pending() outside the lock to determine if there might be any > descriptors in the ring that the hardware has not seen. [...]
What bug does this fix? Is ioat2_ring_pending() *really* safe to call without the ring_lock? Ben. -- Ben Hutchings For every complex problem there is a solution that is simple, neat, and wrong.
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