Pull miscellaneous into release branch

Conflicts:

	arch/ia64/kernel/mca.c

1 files changed, 36 insertions, 20 deletions

diff --git a/arch/ia64/kernel/crash.c b/arch/ia64/kernel/crash.c
index fbe742ad2fde..90ef338cf46f 100644
--- a/arch/ia64/kernel/crash.c
+++ b/arch/ia64/kernel/crash.c
@@ -24,6 +24,7 @@ int kdump_status[NR_CPUS];
 static atomic_t kdump_cpu_frozen;
 atomic_t kdump_in_progress;
 static int kdump_on_init = 1;
+static int kdump_on_fatal_mca = 1;
 
 static inline Elf64_Word
 *append_elf_note(Elf64_Word *buf, char *name, unsigned type, void *data,
@@ -118,6 +119,7 @@ machine_crash_shutdown(struct pt_regs *pt)
 static void
 machine_kdump_on_init(void)
 {
+        crash_save_vmcoreinfo();
         local_irq_disable();
         kexec_disable_iosapic();
         machine_kexec(ia64_kimage);
@@ -148,7 +150,7 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
         struct ia64_mca_notify_die *nd;
         struct die_args *args = data;
 
-        if (!kdump_on_init)
+        if (!kdump_on_init && !kdump_on_fatal_mca)
                 return NOTIFY_DONE;
 
         if (!ia64_kimage) {
@@ -173,32 +175,38 @@ kdump_init_notifier(struct notifier_block *self, unsigned long val, void *data)
                 return NOTIFY_DONE;
 
         switch (val) {
-                case DIE_INIT_MONARCH_PROCESS:
+        case DIE_INIT_MONARCH_PROCESS:
+                if (kdump_on_init) {
                         atomic_set(&kdump_in_progress, 1);
                         *(nd->monarch_cpu) = -1;
-                        break;
-                case DIE_INIT_MONARCH_LEAVE:
+                }
+                break;
+        case DIE_INIT_MONARCH_LEAVE:
+                if (kdump_on_init)
                         machine_kdump_on_init();
-                        break;
-                case DIE_INIT_SLAVE_LEAVE:
-                        if (atomic_read(&kdump_in_progress))
-                                unw_init_running(kdump_cpu_freeze, NULL);
-                        break;
-                case DIE_MCA_RENDZVOUS_LEAVE:
-                        if (atomic_read(&kdump_in_progress))
-                                unw_init_running(kdump_cpu_freeze, NULL);
-                        break;
-                case DIE_MCA_MONARCH_LEAVE:
-                     /* die_register->signr indicate if MCA is recoverable */
-                        if (!args->signr)
-                                machine_kdump_on_init();
-                        break;
+                break;
+        case DIE_INIT_SLAVE_LEAVE:
+                if (atomic_read(&kdump_in_progress))
+                        unw_init_running(kdump_cpu_freeze, NULL);
+                break;
+        case DIE_MCA_RENDZVOUS_LEAVE:
+                if (atomic_read(&kdump_in_progress))
+                        unw_init_running(kdump_cpu_freeze, NULL);
+                break;
+        case DIE_MCA_MONARCH_LEAVE:
+                /* die_register->signr indicate if MCA is recoverable */
+                if (kdump_on_fatal_mca && !args->signr) {
+                        atomic_set(&kdump_in_progress, 1);
+                        *(nd->monarch_cpu) = -1;
+                        machine_kdump_on_init();
+                }
+                break;
         }
         return NOTIFY_DONE;
 }
 
 #ifdef CONFIG_SYSCTL
-static ctl_table kdump_on_init_table[] = {
+static ctl_table kdump_ctl_table[] = {
         {
                 .ctl_name = CTL_UNNUMBERED,
                 .procname = "kdump_on_init",
@@ -207,6 +215,14 @@ static ctl_table kdump_on_init_table[] = {
                 .mode = 0644,
                 .proc_handler = &proc_dointvec,
         },
+        {
+                .ctl_name = CTL_UNNUMBERED,
+                .procname = "kdump_on_fatal_mca",
+                .data = &kdump_on_fatal_mca,
+                .maxlen = sizeof(int),
+                .mode = 0644,
+                .proc_handler = &proc_dointvec,
+        },
         { .ctl_name = 0 }
 };
 
@@ -215,7 +231,7 @@ static ctl_table sys_table[] = {
           .ctl_name = CTL_KERN,
           .procname = "kernel",
           .mode = 0555,
-          .child = kdump_on_init_table,
+          .child = kdump_ctl_table,
         },
         { .ctl_name = 0 }
 };