pkt_sched: Add 'deactivated' state.

This new state lets dev_deactivate() mark a qdisc as having been
deactivated.

dev_queue_xmit() and ing_filter() check for this bit and do not
try to process the qdisc if the bit is set.

dev_deactivate() polls the qdisc after setting the bit, waiting
for both __QDISC_STATE_RUNNING and __QDISC_STATE_SCHED to clear.

This isn't perfect yet, but subsequent changesets will make it so.
This part is just one piece of the puzzle.

Signed-off-by: David S. Miller <davem@davemloft.net>

This commit is contained in:

David S. Miller

2008-08-17 21:51:03 -07:00

parent 08013fa353

commit a9312ae893

3 changed files with 15 additions and 1 deletions

									
										include/net/sch_generic.h
									
		+1
		
												View File
												
				@@ -27,6 +27,7 @@ enum qdisc_state_t

				{

					__QDISC_STATE_RUNNING,

					__QDISC_STATE_SCHED,

					__QDISC_STATE_DEACTIVATED,

				};

				struct qdisc_size_table {