sunrpc: fix expiry of auth creds

Before this commit, with a large enough LRU of expired items (100), the
loop skipped all the expired items and was entirely ineffectual in
trimming the LRU list.

Fixes: 95cd623 ('SUNRPC: Clean up the AUTH cache code')
Signed-off-by: Dan Aloni <[email protected]>
Signed-off-by: Trond Myklebust <[email protected]>

Author: da-x

net/sunrpc/auth.c

@@ -445,7 +445,7 @@ rpcauth_prune_expired(struct list_head *free, int nr_to_scan)
 		 * Enforce a 60 second garbage collection moratorium
 		 * Note that the cred_unused list must be time-ordered.
 		 */
-		if (!time_in_range(cred->cr_expire, expired, jiffies))
+		if (time_in_range(cred->cr_expire, expired, jiffies))
 			continue;
 		if (!rpcauth_unhash_cred(cred))
 			continue;