diff options
| author | Eric Dumazet <edumazet@google.com> | 2014-10-10 15:48:14 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-10 23:37:28 +0400 |
| commit | 42b0270b40e2ad692ef59e28233202ee6f293e1e (patch) | |
| tree | 69d6d03af07645ea074a68433d24b2bf3ace9f22 /Documentation/fmc/fmc-trivial.txt | |
| parent | 1fadee0c364572f2b2e098b34001fbaa82ee2e00 (diff) | |
| download | linux-42b0270b40e2ad692ef59e28233202ee6f293e1e.tar.xz | |
fm10k: 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>
Diffstat (limited to 'Documentation/fmc/fmc-trivial.txt')
0 files changed, 0 insertions, 0 deletions