Messages in this thread | | | Date | Wed, 14 Aug 2013 22:23:51 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH] intel-iommu: Fix leaks in pagetable freeing |
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On Sat, Jun 15, 2013 at 10:27:19AM -0600, Alex Williamson wrote: > At best the current code only seems to free the leaf pagetables and > the root. If you're unlucky enough to have a large gap (like any > QEMU guest with more than 3G of memory), only the first chunk of leaf > pagetables are freed (plus the root). This is a massive memory leak. > This patch re-writes the pagetable freeing function to use a > recursive algorithm and manages to not only free all the pagetables, > but does it without any apparent performance loss versus the current > broken version. > > Signed-off-by: Alex Williamson <alex.williamson@redhat.com> > Cc: stable@vger.kernel.org
Applied to iommu/fixes, thanks Alex. Will send this for v3.11 after a couple of days in next.
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