[PATCH] kdump: Enable kdump if 2nd-kernel is loaded.

[Ken'ichi Ohmichi]

Hi,

This patch enables a kdump if 2nd-kernel is loaded.
(The patch is based on linux-2.6.31-rc2.)

Now, a kdump is enabled if a kernel parameter "oops=panic" is specified and
2nd-kernel is loaded. I think that a kdump should be enabled regardless of
"oops=panic" if 2nd-kernel is loaded, because a system administrator loads
2nd-kernel for enabling a kdump.

* Reference
  The discussion about this patch
  http://lists.infradead.org/pipermail/kexec/2009-July/003417.html


Thanks
Ken'ichi Ohmichi

Signed-off-by: Ken'ichi Ohmichi <oomichi@xxxxxxxxxxxxxxxxx>
Acked-by: Simon Horman <horms@xxxxxxxxxxxx>
---
--- a/kernel/kexec.c	2009-07-08 12:30:26.000000000 +0900
+++ b/kernel/kexec.c	2009-07-08 12:38:08.000000000 +0900
@@ -57,6 +57,8 @@ struct resource crashk_res = {
 
 int kexec_should_crash(struct task_struct *p)
 {
+	if (kexec_crash_image)
+		return 1;
 	if (in_interrupt() || !p->pid || is_global_init(p) || panic_on_oops)
 		return 1;
 	return 0;

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