On Wed, Apr 17, 2013 at 06:07:33PM +0300, Kirill A. Shutemov wrote: > From: "Kirill A. Shutemov" <kirill.shute...@linux.intel.com> > > Current implementation of huge zero page uses pfn value 0 to indicate > that the page hasn't allocated yet. It assumes that buddy page allocator > can't return page with pfn == 0. > > Let's rework the code to store 'struct page *' of huge zero page, not > its pfn. This way we can avoid the weak assumption. > > Signed-off-by: Kirill A. Shutemov <kirill.shute...@linux.intel.com> > Reported-by: Minchan Kim <minc...@kernel.org> > Acked-by: Minchan Kim <minc...@kernel.org> > --- > mm/huge_memory.c | 43 +++++++++++++++++++++---------------------- > 1 file changed, 21 insertions(+), 22 deletions(-)
Reviewed-by: Andrea Arcangeli <aarca...@redhat.com> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
