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authorJeff Moyer <jmoyer@redhat.com>2006-06-23 02:05:07 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-06-23 07:43:02 -0700
commitc330dda908b5a46469a997eea90b66f2f9f02b34 (patch)
treeaad52aa4e127c366ca185c2122650d7dbb3437a0 /include
parent24bbb1faf3f0420eb252dd0fdc1e477b1d4d73bd (diff)
[PATCH] Add a sysfs file to determine if a kexec kernel is loaded
Create two files in /sys/kernel, kexec_loaded and kexec_crash_loaded. Each file contains a simple boolean value indicating whether the relevant kernel has been loaded into memory. The motivation for this is geared around support. Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/kexec.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index cfb3410e32b1..6427949ddf99 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -106,6 +106,7 @@ extern struct page *kimage_alloc_control_pages(struct kimage *image,
extern void crash_kexec(struct pt_regs *);
int kexec_should_crash(struct task_struct *);
extern struct kimage *kexec_image;
+extern struct kimage *kexec_crash_image;
#define KEXEC_ON_CRASH 0x00000001
#define KEXEC_ARCH_MASK 0xffff0000