[PATCH 1/2] kmsg_dump: adding to reboot, halt, poweroff andemergency_restart path

[Seiji Aguchi]

This patch alters mtdoops and ramoops to perform their actions only for KMSG_DUMP_PANIC,
KMSG_DUMP_OOPS and KMSG_DUMP_KEXEC because they would like to log crashes only.

 Signed-off-by: Seiji Aguchi <seiji.aguchi@xxxxxxx>

---
 drivers/char/ramoops.c |    5 +++++
 drivers/mtd/mtdoops.c  |    5 +++++
 2 files changed, 10 insertions(+), 0 deletions(-)

diff --git a/drivers/char/ramoops.c b/drivers/char/ramoops.c index 73dcb0e..8998b29 100644
--- a/drivers/char/ramoops.c
+++ b/drivers/char/ramoops.c
@@ -69,6 +69,11 @@ static void ramoops_do_dump(struct kmsg_dumper *dumper,
 	char *buf;
 	struct timeval timestamp;
 
+	if (reason != KMSG_DUMP_OOPS &&
+	    reason != KMSG_DUMP_PANIC &&
+	    reason != KMSG_DUMP_KEXEC)
+		return;
+
 	/* Only dump oopses if dump_oops is set */
 	if (reason == KMSG_DUMP_OOPS && !dump_oops)
 		return;
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c index 1ee72f3..c948150 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -307,6 +307,11 @@ static void mtdoops_do_dump(struct kmsg_dumper *dumper,
 	unsigned long l1_cpy, l2_cpy;
 	char *dst;
 
+	if (reason != KMSG_DUMP_OOPS &&
+	    reason != KMSG_DUMP_PANIC &&
+	    reason != KMSG_DUMP_KEXEC)
+		return;
+
 	/* Only dump oopses if dump_oops is set */
 	if (reason == KMSG_DUMP_OOPS && !dump_oops)
 		return;
--
1.7.2.2

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