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| author | Eric Dumazet <edumazet@google.com> | 2014-10-10 15:48:16 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-10 23:37:28 +0400 |
| commit | ec91698360b3818ff426488a1529811f7a7ab87f (patch) | |
| tree | 25eaf1eae76db5e562eae34d0ea921d03566c8c0 /Documentation/fmc/fmc-trivial.txt | |
| parent | 00cd5adb0313f540aa58672d14e764d164586a43 (diff) | |
| download | linux-ec91698360b3818ff426488a1529811f7a7ab87f.tar.xz | |
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>
Diffstat (limited to 'Documentation/fmc/fmc-trivial.txt')
0 files changed, 0 insertions, 0 deletions