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(parent: def82a1) | patch
pkt_sched: Simplify dev_deactivate() polling loop.
authorDavid S. Miller <davem@davemloft.net>
Mon, 18 Aug 2008 04:58:07 +0000 (21:58 -0700)
committerDavid S. Miller <davem@davemloft.net>
Mon, 18 Aug 2008 04:58:07 +0000 (21:58 -0700)
commit4335cd2da1e8986fa8aff21a91144d986cb0a5fc
tree7c39163199086fedc39adad6c733526658d4bc86tree | snapshot
parentdef82a1db1fdc4f861c77009e2ee86870c3743b0commit | diff
pkt_sched: Simplify dev_deactivate() polling loop.

The condition under which the previous qdisc has no more references
after we've attached &noop_qdisc is that both RUNNING and SCHED
are both seen clear while holding the root lock.

So just make specifically that check in the polling loop, instead
of this overly complex "check without then check with lock held"
sequence.

Signed-off-by: David S. Miller <davem@davemloft.net>
net/sched/sch_generic.c diff | blob | history
Full containers within linux kernel