relayfs: fix infinite loop with splice()

[linux-2.6-omap-h63xx.git] / kernel / relay.c

diff --git a/kernel/relay.c b/kernel/relay.c
index 8d13a7855c0808858c20fd01d6decebc08c8eeaa..09ac2008f77b419a5c169e41f3ddcbab6aa90746 100644 (file)
--- a/kernel/relay.c
+++ b/kernel/relay.c
@@ -400,7 +400,7 @@ void relay_reset(struct rchan *chan)
        }
 
        mutex_lock(&relay_channels_mutex);
-       for_each_online_cpu(i)
+       for_each_possible_cpu(i)
                if (chan->buf[i])
                        __relay_reset(chan->buf[i], 0);
        mutex_unlock(&relay_channels_mutex);
@@ -611,10 +611,9 @@ struct rchan *relay_open(const char *base_filename,
        return chan;
 
 free_bufs:
-       for_each_online_cpu(i) {
-               if (!chan->buf[i])
-                       break;
-               relay_close_buf(chan->buf[i]);
+       for_each_possible_cpu(i) {
+               if (chan->buf[i])
+                       relay_close_buf(chan->buf[i]);
        }
 
        kref_put(&chan->kref, relay_destroy_channel);
@@ -1318,12 +1317,9 @@ static ssize_t relay_file_splice_read(struct file *in,
                if (ret < 0)
                        break;
                else if (!ret) {
-                       if (spliced)
-                               break;
-                       if (flags & SPLICE_F_NONBLOCK) {
+                       if (flags & SPLICE_F_NONBLOCK)
                                ret = -EAGAIN;
-                               break;
-                       }
+                       break;
                }
 
                *ppos += ret;