diff options
| author | David S. Miller <davem@davemloft.net> | 2017-06-15 11:31:37 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-15 11:59:32 -0400 |
| commit | 0ddead90b223faae475f3296a50bf574b7f7c69a (patch) | |
| tree | e729c7fcdc7e3697f7fae2f3028ed0d11931c425 /net/core/dst.c | |
| parent | f7aec129a356ad049edddcb7e77b04a474fcf41f (diff) | |
| parent | a090bd4ff8387c409732a8e059fbf264ea0bdd56 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
The conflicts were two cases of overlapping changes in
batman-adv and the qed driver.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dst.c')
| -rw-r--r-- | net/core/dst.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/core/dst.c b/net/core/dst.c index 6192f11beec9..13ba4a090c41 100644 --- a/net/core/dst.c +++ b/net/core/dst.c @@ -469,6 +469,20 @@ static int dst_dev_event(struct notifier_block *this, unsigned long event, spin_lock_bh(&dst_garbage.lock); dst = dst_garbage.list; dst_garbage.list = NULL; + /* The code in dst_ifdown places a hold on the loopback device. + * If the gc entry processing is set to expire after a lengthy + * interval, this hold can cause netdev_wait_allrefs() to hang + * out and wait for a long time -- until the the loopback + * interface is released. If we're really unlucky, it'll emit + * pr_emerg messages to console too. Reset the interval here, + * so dst cleanups occur in a more timely fashion. + */ + if (dst_garbage.timer_inc > DST_GC_INC) { + dst_garbage.timer_inc = DST_GC_INC; + dst_garbage.timer_expires = DST_GC_MIN; + mod_delayed_work(system_wq, &dst_gc_work, + dst_garbage.timer_expires); + } spin_unlock_bh(&dst_garbage.lock); if (last) |