[PATCH] kexec: Add prefix "kexec" to output message

[Minfei Huang <mnfhuang@gmail.com>]

kexec output message misses the prefix "kexec", when Dave Young split
the kexec code. To keep the same format, add the prefix "kexec" to
output message.

Following is the format of output message now.
[  140.290795] SYSC_kexec_load: hello, world

Ideally, the format of output message likes below.
[  140.291534] kexec: sanity_check_segment_list: hello, world

Signed-off-by: Minfei Huang <mnfhuang@gmail.com>
---
 kernel/kexec.c      | 2 ++
 kernel/kexec_file.c | 2 ++
 2 files changed, 4 insertions(+)

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 4c5edc3..15351ba 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -6,6 +6,8 @@
  * Version 2.  See the file COPYING for more details.
  */
 
+#define pr_fmt(fmt)	"kexec: " fmt
+
 #include <linux/capability.h>
 #include <linux/mm.h>
 #include <linux/file.h>
diff --git a/kernel/kexec_file.c b/kernel/kexec_file.c
index 6a9a3f2..b1ad01b 100644
--- a/kernel/kexec_file.c
+++ b/kernel/kexec_file.c
@@ -9,6 +9,8 @@
  * Version 2.  See the file COPYING for more details.
  */
 
+#define pr_fmt(fmt)	"kexec: " fmt
+
 #include <linux/capability.h>
 #include <linux/mm.h>
 #include <linux/file.h>
-- 
2.4.0