On Thu, 2015-02-19 at 17:05 +0200, Mathias Nyman wrote:
> On 19.02.2015 02:34, Tim Chen wrote:
> >
> > Commit d92ef66c4f8f ("x86: make dma_alloc_coherent() return zeroed memory
> > if CMA is enabled") changed the dma_alloc_coherent page clearance from
> > using an __GFP_ZERO in page allocation to
> Great. Thanks for fixing this.
Not great.
This still leaves all the other drivers which may be affected by similar
problems.
IMHO Tim's original patch is still needed.
-Andi
--
a...@linux.intel.com -- Speaking for myself only
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On Thu, 2015-02-19 at 17:05 +0200, Mathias Nyman wrote:
> On 19.02.2015 02:34, Tim Chen wrote:
> >
> > Commit d92ef66c4f8f ("x86: make dma_alloc_coherent() return zeroed memory
> > if CMA is enabled") changed the dma_alloc_coherent page clearance from
> > using an __GFP_ZERO in page allocation to
On 19.02.2015 02:34, Tim Chen wrote:
>
> Commit d92ef66c4f8f ("x86: make dma_alloc_coherent() return zeroed memory
> if CMA is enabled") changed the dma_alloc_coherent page clearance from
> using an __GFP_ZERO in page allocation to not setting the flag but doing
> an explicit memory clear at the e
Commit d92ef66c4f8f ("x86: make dma_alloc_coherent() return zeroed memory
if CMA is enabled") changed the dma_alloc_coherent page clearance from
using an __GFP_ZERO in page allocation to not setting the flag but doing
an explicit memory clear at the end.
However the memory clear only covered the
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