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Noticed that we can shuffle the code around in fcoe_percpu_receive_thread a bit
and avoid taking the fcoe_rx_list lock twice per iteration. This should improve
throughput somewhat. With this change we take the lock, and check for new
frames in a single critical section. Only if the list is empty do we drop the
lock and re-acquire it after being signaled to wake up.
Change Notes:
v2) did some further cleanup on the patch by replacing the 2nd call of
spin_lock/splice_init with a goto to the top of the outer loop. This allows me
to change the inner while loop to an if conditional and remove the sencond check
of kthread_should_stop. Based on suggestion from Vasu Dev.
Signed-off-by: Neil Horman <nhorman@tuxdriver.com>
Acked-by: Vasu Dev <vasu.dev@intel.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
95fdd5e980