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| author | Eric Dumazet <edumazet@google.com> | 2014-10-10 15:48:15 +0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-10 23:37:28 +0400 |
| commit | 00cd5adb0313f540aa58672d14e764d164586a43 (patch) | |
| tree | bdeeb422a5a8627d6da8a42499aeec2340cef437 /Documentation/fmc/fmc-trivial.txt | |
| parent | 42b0270b40e2ad692ef59e28233202ee6f293e1e (diff) | |
| download | linux-00cd5adb0313f540aa58672d14e764d164586a43.tar.xz | |
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>
Diffstat (limited to 'Documentation/fmc/fmc-trivial.txt')
0 files changed, 0 insertions, 0 deletions