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authorNils Carlson <nils.carlson@ericsson.com>2011-03-03 22:09:11 +0000
committerDavid S. Miller <davem@davemloft.net>2011-03-07 16:02:17 -0800
commit16d79d7dc98e56d4700054b9b785a92102d8998c (patch)
tree975e808eed2b39d12fd09bb884fc24dd013410d6 /REPORTING-BUGS
parentce3c869283739379134e1a90c37dd1a30b5f31b7 (diff)
bonding 802.3ad: Fix the state machine locking v2
Changes since v1: * Clarify an unclear comment * Move a (possible) name change to a separate patch The ad_rx_machine, ad_periodic_machine and ad_port_selection_logic functions all inspect and alter common fields within the port structure. Previous to this patch, only the ad_rx_machines were mutexed, and the periodic and port_selection could run unmutexed against an ad_rx_machine trigged by an arriving LACPDU. This patch remedies the situation by protecting all the state machines from concurrency. This is accomplished by locking around all the state machines for a given port, which are executed at regular intervals; and the ad_rx_machine when handling an incoming LACPDU. Signed-off-by: Nils Carlson <nils.carlson@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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