diff options
Diffstat (limited to 'kernel/kexec.c')
| -rw-r--r-- | kernel/kexec.c | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c index 58f0f382597..fcdd5d2bc3f 100644 --- a/kernel/kexec.c +++ b/kernel/kexec.c @@ -40,7 +40,7 @@ struct resource crashk_res = { int kexec_should_crash(struct task_struct *p) { - if (in_interrupt() || !p->pid || p->pid == 1 || panic_on_oops) + if (in_interrupt() || !p->pid || is_init(p) || panic_on_oops) return 1; return 0; } @@ -995,7 +995,8 @@ asmlinkage long sys_kexec_load(unsigned long entry, unsigned long nr_segments, image = xchg(dest_image, image); out: - xchg(&kexec_lock, 0); /* Release the mutex */ + locked = xchg(&kexec_lock, 0); /* Release the mutex */ + BUG_ON(!locked); kimage_free(image); return result; @@ -1042,7 +1043,6 @@ asmlinkage long compat_sys_kexec_load(unsigned long entry, void crash_kexec(struct pt_regs *regs) { - struct kimage *image; int locked; @@ -1056,14 +1056,14 @@ void crash_kexec(struct pt_regs *regs) */ locked = xchg(&kexec_lock, 1); if (!locked) { - image = xchg(&kexec_crash_image, NULL); - if (image) { + if (kexec_crash_image) { struct pt_regs fixed_regs; crash_setup_regs(&fixed_regs, regs); machine_crash_shutdown(&fixed_regs); - machine_kexec(image); + machine_kexec(kexec_crash_image); } - xchg(&kexec_lock, 0); + locked = xchg(&kexec_lock, 0); + BUG_ON(!locked); } } |