Commit 32f4d8c9 authored Mar 18, 2015 by Eric Dumazet Committed by Subash Abhinov Kasiviswanathan Jul 17, 2015

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.

Change-Id: I9527953b79a7bc40a2c297a7bdb3c461998aa01b
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Git-commit: 738e6d30d392fb75933a5eb4b481811598038786
Git-repo: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git


Signed-off-by: Matt Wagantall <mattw@codeaurora.org>

parent 321e35e2

net/ipv4/inet_timewait_sock.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -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) {