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| author | Eric Dumazet <edumazet@google.com> | 2015-03-18 17:40:51 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-03-18 22:38:13 -0400 |
| commit | 738e6d30d392fb75933a5eb4b481811598038786 (patch) | |
| tree | 768a37f5be81bf3dd1f9453460bb740df122320f /net/ipv4/inet_timewait_sock.c | |
| parent | db19170bc0a254b46c732ea4bdf1c6cf0de6b38b (diff) | |
| download | linux-738e6d30d392fb75933a5eb4b481811598038786.tar.gz linux-738e6d30d392fb75933a5eb4b481811598038786.tar.bz2 linux-738e6d30d392fb75933a5eb4b481811598038786.zip | |
inet: add a schedule point in inet_twsk_purge()
On a large hash table, we can easily spend seconds to
walk over all entries. Add a cond_resched() to yield
cpu if necessary.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_timewait_sock.c')
| -rw-r--r-- | net/ipv4/inet_timewait_sock.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/inet_timewait_sock.c b/net/ipv4/inet_timewait_sock.c index 86ebf020925b..f38e387448fb 100644 --- a/net/ipv4/inet_timewait_sock.c +++ b/net/ipv4/inet_timewait_sock.c @@ -487,6 +487,7 @@ void inet_twsk_purge(struct inet_hashinfo *hashinfo, for (slot = 0; slot <= hashinfo->ehash_mask; slot++) { struct inet_ehash_bucket *head = &hashinfo->ehash[slot]; restart_rcu: + cond_resched(); rcu_read_lock(); restart: sk_nulls_for_each_rcu(sk, node, &head->chain) { |