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[DLM] Make dlm_sendd cond_resched more

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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>
This commit is contained in:
Patrick Caulfield 2007-09-14 08:49:21 +01:00 committed by Steven Whitehouse
parent 49e61f2ef6
commit d66f8277f5
1 changed files with 4 additions and 3 deletions
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7
fs/dlm/lowcomms.c
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@ -1264,14 +1264,15 @@ static void send_to_sock(struct connection *con)
if (len) { if (len) {
ret = sendpage(con->sock, e->page, offset, len, ret = sendpage(con->sock, e->page, offset, len,
msg_flags); msg_flags);
if (ret == -EAGAIN || ret == 0) if (ret == -EAGAIN || ret == 0) {
cond_resched();
goto out; goto out;
}
if (ret <= 0) if (ret <= 0)
goto send_error; goto send_error;
} else { }
/* Don't starve people filling buffers */ /* Don't starve people filling buffers */
cond_resched(); cond_resched();
}
spin_lock(&con->writequeue_lock); spin_lock(&con->writequeue_lock);
e->offset += ret; e->offset += ret;