| commit | 98226208c8a1fe5834e92d827a2a1e8051a17943 | [log] [tgz] |
|---|---|---|
| author | Eric Dumazet <edumazet@google.com> | Fri Oct 10 04:48:17 2014 -0700 |
| committer | David S. Miller <davem@davemloft.net> | Fri Oct 10 15:37:28 2014 -0400 |
| tree | 09bc0b1ebf516dcba2d21b93d98dc0e3d2bc3181 | |
| parent | ec91698360b3818ff426488a1529811f7a7ab87f [diff] |
mlx4: fix race accessing page->_count This is illegal to use atomic_set(&page->_count, ...) 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> Signed-off-by: David S. Miller <davem@davemloft.net>