| commit | ec91698360b3818ff426488a1529811f7a7ab87f | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Fri Oct 10 04:48:16 2014 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Fri Oct 10 15:37:28 2014 -0400 |
| tree | 25eaf1eae76db5e562eae34d0ea921d03566c8c0 | |
| parent | 00cd5adb0313f540aa58672d14e764d164586a43 [diff] |
ixgbe: fix race accessing page->_count This is illegal to use atomic_set(&page->_count, 2) even if we 'own' the page. Other entities in the kernel need to use get_page_unless_zero() to get a reference to the page before testing page properties, so we could loose a refcount increment. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>