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authorJoel Becker <joel.becker@oracle.com>2010-10-15 13:03:09 -0700
committerJoel Becker <joel.becker@oracle.com>2010-10-15 13:03:09 -0700
commitfc3718918f13ad72827d62d36ea0f5fb55090644 (patch)
tree4f9551256e02d08be37bab137f3d94182a67504c /net/unix/af_unix.c
parent7bdb0d18bfd381cc5491eb95973ec5604b356c7e (diff)
parentd4396eafe402b710a8535137b3bf2abe6c059a15 (diff)
Merge branch 'globalheartbeat-2' of git://oss.oracle.com/git/smushran/linux-2.6 into ocfs2-merge-window
Conflicts: fs/ocfs2/ocfs2.h
Diffstat (limited to 'net/unix/af_unix.c')
-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 4414a18c63b4..0b39b2451ea5 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;