Patch "net: Add net_ratelimited_function and net_<level>_ratelimited macros" has been added to the 3.4-stable tree

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This is a note to let you know that I've just added the patch titled

    net: Add net_ratelimited_function and net_<level>_ratelimited macros

to the 3.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     net-add-net_ratelimited_function-and-net_-level-_ratelimited-macros.patch
and it can be found in the queue-3.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From 3a3bfb61e64476ff1e4ac3122cb6dec9c79b795c Mon Sep 17 00:00:00 2001
From: Joe Perches <joe@xxxxxxxxxxx>
Date: Sun, 13 May 2012 21:56:25 +0000
Subject: net: Add net_ratelimited_function and net_<level>_ratelimited macros

From: Joe Perches <joe@xxxxxxxxxxx>

commit 3a3bfb61e64476ff1e4ac3122cb6dec9c79b795c upstream.

__ratelimit() can be considered an inverted bool test because
it returns true when not ratelimited.  Several tests in the
kernel tree use this __ratelimit() function incorrectly.

No net_ratelimit uses are incorrect currently though.

Most uses of net_ratelimit are to log something via printk or
pr_<level>.

In order to minimize the uses of net_ratelimit, and to start
standardizing the code style used for __ratelimit() and net_ratelimit(),
add a net_ratelimited_function() macro and net_<level>_ratelimited()
logging macros similar to pr_<level>_ratelimited that use the global
net_ratelimit instead of a static per call site "struct ratelimit_state".

Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 include/linux/net.h |   23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -259,6 +259,29 @@ extern struct socket *sockfd_lookup(int
 #define		     sockfd_put(sock) fput(sock->file)
 extern int	     net_ratelimit(void);
 
+#define net_ratelimited_function(function, ...)			\
+do {								\
+	if (net_ratelimit())					\
+		function(__VA_ARGS__);				\
+} while (0)
+
+#define net_emerg_ratelimited(fmt, ...)				\
+	net_ratelimited_function(pr_emerg, fmt, ##__VA_ARGS__)
+#define net_alert_ratelimited(fmt, ...)				\
+	net_ratelimited_function(pr_alert, fmt, ##__VA_ARGS__)
+#define net_crit_ratelimited(fmt, ...)				\
+	net_ratelimited_function(pr_crit, fmt, ##__VA_ARGS__)
+#define net_err_ratelimited(fmt, ...)				\
+	net_ratelimited_function(pr_err, fmt, ##__VA_ARGS__)
+#define net_notice_ratelimited(fmt, ...)			\
+	net_ratelimited_function(pr_notice, fmt, ##__VA_ARGS__)
+#define net_warn_ratelimited(fmt, ...)				\
+	net_ratelimited_function(pr_warn, fmt, ##__VA_ARGS__)
+#define net_info_ratelimited(fmt, ...)				\
+	net_ratelimited_function(pr_info, fmt, ##__VA_ARGS__)
+#define net_dbg_ratelimited(fmt, ...)				\
+	net_ratelimited_function(pr_debug, fmt, ##__VA_ARGS__)
+
 #define net_random()		random32()
 #define net_srandom(seed)	srandom32((__force u32)seed)
 


Patches currently in stable-queue which might be from joe@xxxxxxxxxxx are

queue-3.4/net-add-net_ratelimited_function-and-net_-level-_ratelimited-macros.patch
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