From: Petr Mladek <pmladek@suse.cz>
Date: Thu, 3 Apr 2014 21:48:43 +0000 (-0700)
Subject: printk: do not compute the size of the message twice
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=fce6e0338abe910ba6d4db0657ae8adc6aa1a72b;p=deliverable%2Flinux.git

printk: do not compute the size of the message twice

This is just a tiny optimization.  It removes duplicate computation of
the message size.

Signed-off-by: Petr Mladek <pmladek@suse.cz>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Michal Hocko <mhocko@suse.cz>
Cc: Kay Sievers <kay@vrfy.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

diff --git a/kernel/printk/printk.c b/kernel/printk/printk.c
index b3a1790f9e05..ff9faf4e3cd5 100644
--- a/kernel/printk/printk.c
+++ b/kernel/printk/printk.c
@@ -351,7 +351,7 @@ static void log_store(int facility, int level,
 	else
 		msg->ts_nsec = local_clock();
 	memset(log_dict(msg) + dict_len, 0, pad_len);
-	msg->len = sizeof(struct printk_log) + text_len + dict_len + pad_len;
+	msg->len = size;
 
 	/* insert message */
 	log_next_idx += msg->len;