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authorDavid S. Miller <davem@davemloft.net>2010-09-09 22:27:33 -0700
committerDavid S. Miller <davem@davemloft.net>2010-09-09 22:27:33 -0700
commite548833df83c3554229eff0672900bfe958b45fd (patch)
tree85efc4a76dc356593d6d394776aeb845dc580fb6 /net/unix
parentcbd9da7be869f676afc204e1a664163778c770bd (diff)
parent053d8f6622701f849fda2ca2c9ae596c13599ba9 (diff)
downloadlwn-e548833df83c3554229eff0672900bfe958b45fd.tar.gz
lwn-e548833df83c3554229eff0672900bfe958b45fd.zip
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts: net/mac80211/main.c
Diffstat (limited to 'net/unix')
-rw-r--r--net/unix/af_unix.c15
1 files changed, 12 insertions, 3 deletions
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 9077b4ea00c5..c586da3f4f18 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -692,6 +692,7 @@ static int unix_autobind(struct socket *sock)
static u32 ordernum = 1;
struct unix_address *addr;
int err;
+ unsigned int retries = 0;
mutex_lock(&u->readlock);
@@ -717,9 +718,17 @@ retry:
if (__unix_find_socket_byname(net, addr->name, addr->len, sock->type,
addr->hash)) {
spin_unlock(&unix_table_lock);
- /* Sanity yield. It is unusual case, but yet... */
- if (!(ordernum&0xFF))
- yield();
+ /*
+ * __unix_find_socket_byname() may take long time if many names
+ * are already in use.
+ */
+ cond_resched();
+ /* Give up if all names seems to be in use. */
+ if (retries++ == 0xFFFFF) {
+ err = -ENOSPC;
+ kfree(addr);
+ goto out;
+ }
goto retry;
}
addr->hash ^= sk->sk_type;