diff options
| author | Ingo Molnar <mingo@elte.hu> | 2006-12-13 00:34:36 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-13 09:05:50 -0800 |
| commit | 5d6f647fc6bb57377c9f417c4752e43189f56bb1 (patch) | |
| tree | ab30c24c021adc549aab6bf042108d920975d9a9 /kernel/sysctl.c | |
| parent | e61c90188b9956edae1105eef361d8981a352fcd (diff) | |
| download | lwn-5d6f647fc6bb57377c9f417c4752e43189f56bb1.tar.gz lwn-5d6f647fc6bb57377c9f417c4752e43189f56bb1.zip | |
[PATCH] debug: add sysrq_always_enabled boot option
Most distributions enable sysrq support but set it to 0 by default. Add a
sysrq_always_enabled boot option to always-enable sysrq keys. Useful for
debugging - without having to modify the disribution's config files (which
might not be possible if the kernel is on a live CD, etc.).
Also, while at it, clean up the sysrq interfaces.
[bunk@stusta.de: make sysrq_always_enabled_setup() static]
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel/sysctl.c')
| -rw-r--r-- | kernel/sysctl.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/kernel/sysctl.c b/kernel/sysctl.c index 130c5ec9ee0b..600b33358ded 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -65,7 +65,6 @@ extern int sysctl_overcommit_memory; extern int sysctl_overcommit_ratio; extern int sysctl_panic_on_oom; extern int max_threads; -extern int sysrq_enabled; extern int core_uses_pid; extern int suid_dumpable; extern char core_pattern[]; @@ -543,7 +542,7 @@ static ctl_table kern_table[] = { { .ctl_name = KERN_SYSRQ, .procname = "sysrq", - .data = &sysrq_enabled, + .data = &__sysrq_enabled, .maxlen = sizeof (int), .mode = 0644, .proc_handler = &proc_dointvec, |