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Diffstat (limited to 'kernel/kexec.c')
-rw-r--r--kernel/kexec.c44
1 files changed, 24 insertions, 20 deletions
diff --git a/kernel/kexec.c b/kernel/kexec.c
index 2436ffcec91f..bddd3d7a74b6 100644
--- a/kernel/kexec.c
+++ b/kernel/kexec.c
@@ -229,6 +229,8 @@ out:
}
+static void kimage_free_page_list(struct list_head *list);
+
static int kimage_normal_alloc(struct kimage **rimage, unsigned long entry,
unsigned long nr_segments,
struct kexec_segment __user *segments)
@@ -242,8 +244,6 @@ static int kimage_normal_alloc(struct kimage **rimage, unsigned long entry,
if (result)
goto out;
- *rimage = image;
-
/*
* Find a location for the control code buffer, and add it
* the vector of segments so that it's pages will also be
@@ -254,22 +254,22 @@ static int kimage_normal_alloc(struct kimage **rimage, unsigned long entry,
get_order(KEXEC_CONTROL_PAGE_SIZE));
if (!image->control_code_page) {
printk(KERN_ERR "Could not allocate control_code_buffer\n");
- goto out;
+ goto out_free;
}
image->swap_page = kimage_alloc_control_pages(image, 0);
if (!image->swap_page) {
printk(KERN_ERR "Could not allocate swap buffer\n");
- goto out;
+ goto out_free;
}
- result = 0;
- out:
- if (result == 0)
- *rimage = image;
- else
- kfree(image);
+ *rimage = image;
+ return 0;
+out_free:
+ kimage_free_page_list(&image->control_pages);
+ kfree(image);
+out:
return result;
}
@@ -316,7 +316,7 @@ static int kimage_crash_alloc(struct kimage **rimage, unsigned long entry,
mend = mstart + image->segment[i].memsz - 1;
/* Ensure we are within the crash kernel limits */
if ((mstart < crashk_res.start) || (mend > crashk_res.end))
- goto out;
+ goto out_free;
}
/*
@@ -329,16 +329,15 @@ static int kimage_crash_alloc(struct kimage **rimage, unsigned long entry,
get_order(KEXEC_CONTROL_PAGE_SIZE));
if (!image->control_code_page) {
printk(KERN_ERR "Could not allocate control_code_buffer\n");
- goto out;
+ goto out_free;
}
- result = 0;
-out:
- if (result == 0)
- *rimage = image;
- else
- kfree(image);
+ *rimage = image;
+ return 0;
+out_free:
+ kfree(image);
+out:
return result;
}
@@ -503,8 +502,6 @@ static struct page *kimage_alloc_crash_control_pages(struct kimage *image,
if (hole_end > KEXEC_CRASH_CONTROL_MEMORY_LIMIT)
break;
- if (hole_end > crashk_res.end)
- break;
/* See if I overlap any of the segments */
for (i = 0; i < image->nr_segments; i++) {
unsigned long mstart, mend;
@@ -1514,6 +1511,8 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_OFFSET(page, _count);
VMCOREINFO_OFFSET(page, mapping);
VMCOREINFO_OFFSET(page, lru);
+ VMCOREINFO_OFFSET(page, _mapcount);
+ VMCOREINFO_OFFSET(page, private);
VMCOREINFO_OFFSET(pglist_data, node_zones);
VMCOREINFO_OFFSET(pglist_data, nr_zones);
#ifdef CONFIG_FLAT_NODE_MEM_MAP
@@ -1536,6 +1535,11 @@ static int __init crash_save_vmcoreinfo_init(void)
VMCOREINFO_NUMBER(PG_lru);
VMCOREINFO_NUMBER(PG_private);
VMCOREINFO_NUMBER(PG_swapcache);
+ VMCOREINFO_NUMBER(PG_slab);
+#ifdef CONFIG_MEMORY_FAILURE
+ VMCOREINFO_NUMBER(PG_hwpoison);
+#endif
+ VMCOREINFO_NUMBER(PAGE_BUDDY_MAPCOUNT_VALUE);
arch_crash_save_vmcoreinfo();
update_vmcoreinfo_note();