On Tue, Jul 23, 2013 at 01:45:50PM +0200, Michal Hocko wrote:
> On Mon 22-07-13 17:36:28, Joonsoo Kim wrote:
> > Currently, we use a page with mapped count 1 in page cache for cow
> > optimization. If we find this condition, we don't allocate a new
> > page and copy contents. Instead, we map this p
On Mon 22-07-13 17:36:28, Joonsoo Kim wrote:
> Currently, we use a page with mapped count 1 in page cache for cow
> optimization. If we find this condition, we don't allocate a new
> page and copy contents. Instead, we map this page directly.
> This may introduce a problem that writting to private
On Mon, Jul 22, 2013 at 05:36:28PM +0900, Joonsoo Kim wrote:
> Currently, we use a page with mapped count 1 in page cache for cow
> optimization. If we find this condition, we don't allocate a new
> page and copy contents. Instead, we map this page directly.
> This may introduce a problem that writ
Currently, we use a page with mapped count 1 in page cache for cow
optimization. If we find this condition, we don't allocate a new
page and copy contents. Instead, we map this page directly.
This may introduce a problem that writting to private mapping overwrite
hugetlb file directly. You can find
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