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Commit ec916983 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
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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: default avatarEric Dumazet <edumazet@google.com>
Acked-by: default avatarJeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 00cd5adb
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