[PATCH] move capable() to capability.h

[pandora-kernel.git] / kernel / kexec.c

diff --git a/kernel/kexec.c b/kernel/kexec.c
index 36c5d9c..bf39d28 100644 (file)
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -6,6 +6,7 @@
  * Version 2.  See the file COPYING for more details.
  */
 
+#include <linux/capability.h>
 #include <linux/mm.h>
 #include <linux/file.h>
 #include <linux/slab.h>
@@ -26,6 +27,9 @@
 #include <asm/system.h>
 #include <asm/semaphore.h>
 
+/* Per cpu memory for storing cpu states in case of system crash. */
+note_buf_t* crash_notes;
+
 /* Location of the reserved area for the crash kernel */
 struct resource crashk_res = {
        .name  = "Crash kernel",
@@ -334,7 +338,7 @@ static struct page *kimage_alloc_pages(gfp_t gfp_mask, unsigned int order)
        if (pages) {
                unsigned int count, i;
                pages->mapping = NULL;
-               pages->private = order;
+               set_page_private(pages, order);
                count = 1 << order;
                for (i = 0; i < count; i++)
                        SetPageReserved(pages + i);
@@ -347,7 +351,7 @@ static void kimage_free_pages(struct page *page)
 {
        unsigned int order, count, i;
 
-       order = page->private;
+       order = page_private(page);
        count = 1 << order;
        for (i = 0; i < count; i++)
                ClearPageReserved(page + i);
@@ -1054,9 +1058,24 @@ void crash_kexec(struct pt_regs *regs)
        if (!locked) {
                image = xchg(&kexec_crash_image, NULL);
                if (image) {
-                       machine_crash_shutdown(regs);
+                       struct pt_regs fixed_regs;
+                       crash_setup_regs(&fixed_regs, regs);
+                       machine_crash_shutdown(&fixed_regs);
                        machine_kexec(image);
                }
                xchg(&kexec_lock, 0);
        }
 }
+
+static int __init crash_notes_memory_init(void)
+{
+       /* Allocate memory for saving cpu registers. */
+       crash_notes = alloc_percpu(note_buf_t);
+       if (!crash_notes) {
+               printk("Kexec: Memory allocation for saving cpu register"
+               " states failed\n");
+               return -ENOMEM;
+       }
+       return 0;
+}
+module_init(crash_notes_memory_init)