printk: do not compute the size of the message twice
authorPetr Mladek <pmladek@suse.cz>
Thu, 3 Apr 2014 21:48:43 +0000 (14:48 -0700)
committerLinus Torvalds <torvalds@linux-foundation.org>
Thu, 3 Apr 2014 23:21:07 +0000 (16:21 -0700)
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>
kernel/printk/printk.c

index b3a1790f9e055433a223da60a2f8c4675a19f9c2..ff9faf4e3cd5955bae7e2b55e23b36de54459c3f 100644 (file)
@@ -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;