| commit | 00cd5adb0313f540aa58672d14e764d164586a43 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Fri Oct 10 04:48:15 2014 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Fri Oct 10 15:37:28 2014 -0400 |
| tree | bdeeb422a5a8627d6da8a42499aeec2340cef437 | |
| parent | 42b0270b40e2ad692ef59e28233202ee6f293e1e [diff] |
igb: 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>