[DLM] Make dlm_sendd cond_resched more

Under high recovery loads dlm_sendd can monopolise the CPU and cause soft lockups.

This one extra and one moved cond_resched() make it yield a little more during
such times keeping work moving.

Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 4 insertions, 3 deletions

diff --git a/fs/dlm/lowcomms.c b/fs/dlm/lowcomms.c
index 62a8a6ccd992..58bf3f5cdbe2 100644
--- a/fs/dlm/lowcomms.c
+++ b/fs/dlm/lowcomms.c
@@ -1264,14 +1264,15 @@ static void send_to_sock(struct connection *con)
                 if (len) {
                         ret = sendpage(con->sock, e->page, offset, len,
                                        msg_flags);
-                        if (ret == -EAGAIN || ret == 0)
+                        if (ret == -EAGAIN || ret == 0) {
+                                cond_resched();
                                 goto out;
+                        }
                         if (ret <= 0)
                                 goto send_error;
-                } else {
+                }
                         /* Don't starve people filling buffers */
                         cond_resched();
-                }
 
                 spin_lock(&con->writequeue_lock);
                 e->offset += ret;