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| author | Jeff Moyer <jmoyer@redhat.com> | 2006-06-23 02:05:07 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-06-23 07:43:02 -0700 |
| commit | c330dda908b5a46469a997eea90b66f2f9f02b34 (patch) | |
| tree | aad52aa4e127c366ca185c2122650d7dbb3437a0 /include/linux | |
| parent | 24bbb1faf3f0420eb252dd0fdc1e477b1d4d73bd (diff) | |
| download | lwn-c330dda908b5a46469a997eea90b66f2f9f02b34.tar.gz lwn-c330dda908b5a46469a997eea90b66f2f9f02b34.zip | |
[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/linux')
| -rw-r--r-- | include/linux/kexec.h | 1 |
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 |