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Message-Id: <20120723010653.199533104@decadent.org.uk>
Date:	Mon, 23 Jul 2012 02:07:02 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, William Dauchy <wdauchy@...il.com>,
	Trond Myklebust <Trond.Myklebust@...app.com>
Subject: [ 011/108] NFSv4: Rate limit the state manager for lock reclaim warning  messages

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: William Dauchy <wdauchy@...il.com>

commit 96dcadc2fdd111dca90d559f189a30c65394451a upstream.

Adding rate limit on `Lock reclaim failed` messages since it could fill
up system logs
Signed-off-by: William Dauchy <wdauchy@...il.com>
Signed-off-by: Trond Myklebust <Trond.Myklebust@...app.com>
[bwh: Backported to 3.2: add the 'NFS:' prefix at the same time]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -1261,8 +1261,9 @@ restart:
 				spin_lock(&state->state_lock);
 				list_for_each_entry(lock, &state->lock_states, ls_locks) {
 					if (!(lock->ls_flags & NFS_LOCK_INITIALIZED))
-						printk("%s: Lock reclaim failed!\n",
-							__func__);
+						pr_warn_ratelimited("NFS: "
+							"%s: Lock reclaim "
+							"failed!\n", __func__);
 				}
 				spin_unlock(&state->state_lock);
 				nfs4_put_open_state(state);



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