Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/dtor/input

[powerpc.git] / arch / ia64 / kernel / crash.c

diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index 0aabedf..5cdd2f5 100644 (file)
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -19,29 +19,11 @@
 
 #include <asm/kdebug.h>
 #include <asm/mca.h>
-#include <asm/uaccess.h>
 
 int kdump_status[NR_CPUS];
 atomic_t kdump_cpu_freezed;
 atomic_t kdump_in_progress;
 int kdump_on_init = 1;
-ssize_t
-copy_oldmem_page(unsigned long pfn, char *buf,
-               size_t csize, unsigned long offset, int userbuf)
-{
-       void  *vaddr;
-
-       if (!csize)
-               return 0;
-       vaddr = __va(pfn<<PAGE_SHIFT);
-       if (userbuf) {
-               if (copy_to_user(buf, (vaddr + offset), csize)) {
-                       return -EFAULT;
-               }
-       } else
-               memcpy(buf, (vaddr + offset), csize);
-       return csize;
-}
 
 static inline Elf64_Word
 *append_elf_note(Elf64_Word *buf, char *name, unsigned type, void *data,
@@ -70,7 +52,7 @@ extern void ia64_dump_cpu_regs(void *);
 static DEFINE_PER_CPU(struct elf_prstatus, elf_prstatus);
 
 void
-crash_save_this_cpu()
+crash_save_this_cpu(void)
 {
        void *buf;
        unsigned long cfm, sof, sol;
@@ -97,6 +79,7 @@ crash_save_this_cpu()
        final_note(buf);
 }
 
+#ifdef CONFIG_SMP
 static int
 kdump_wait_cpu_freeze(void)
 {
@@ -109,6 +92,7 @@ kdump_wait_cpu_freeze(void)
        }
        return 1;
 }
+#endif
 
 void
 machine_crash_shutdown(struct pt_regs *pt)
@@ -134,6 +118,11 @@ machine_crash_shutdown(struct pt_regs *pt)
 static void
 machine_kdump_on_init(void)
 {
+       if (!ia64_kimage) {
+               printk(KERN_NOTICE "machine_kdump_on_init(): "
+                               "kdump not configured\n");
+               return;
+       }
        local_irq_disable();
        kexec_disable_iosapic();
        machine_kexec(ia64_kimage);
@@ -150,11 +139,12 @@ kdump_cpu_freeze(struct unw_frame_info *info, void *arg)
        atomic_inc(&kdump_cpu_freezed);
        kdump_status[cpuid] = 1;
        mb();
-       if (cpuid == 0) {
-               for (;;)
-                       cpu_relax();
-       } else
+#ifdef CONFIG_HOTPLUG_CPU
+       if (cpuid != 0)
                ia64_jump_to_sal(&sal_boot_rendez_state[cpuid]);
+#endif
+       for (;;)
+               cpu_relax();
 }
 
 static int
@@ -225,18 +215,14 @@ static ctl_table sys_table[] = {
 static int
 machine_crash_setup(void)
 {
-       char *from = strstr(saved_command_line, "elfcorehdr=");
        static struct notifier_block kdump_init_notifier_nb = {
                .notifier_call = kdump_init_notifier,
        };
        int ret;
-       if (from)
-               elfcorehdr_addr = memparse(from+11, &from);
-       saved_max_pfn = (unsigned long)-1;
        if((ret = register_die_notifier(&kdump_init_notifier_nb)) != 0)
                return ret;
 #ifdef CONFIG_SYSCTL
-       register_sysctl_table(sys_table, 0);
+       register_sysctl_table(sys_table);
 #endif
        return 0;
 }