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-rw-r--r--kernel/power/power.h2
-rw-r--r--kernel/power/snapshot.c26
2 files changed, 14 insertions, 14 deletions
diff --git a/kernel/power/power.h b/kernel/power/power.h
index 1cefcf87a69..e18ba207e78 100644
--- a/kernel/power/power.h
+++ b/kernel/power/power.h
@@ -38,8 +38,6 @@ extern struct subsystem power_subsys;
/* References to section boundaries */
extern const void __nosave_begin, __nosave_end;
-extern struct pbe *pagedir_nosave;
-
/* Preferred image size in bytes (default 500 MB) */
extern unsigned long image_size;
extern int in_suspend;
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index 4ca372f2bc1..1d276b3ae15 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -34,7 +34,9 @@
#include "power.h"
-struct pbe *pagedir_nosave;
+/* List of PBEs used for creating and restoring the suspend image */
+struct pbe *restore_pblist;
+
static unsigned int nr_copy_pages;
static unsigned int nr_meta_pages;
static unsigned long *buffer;
@@ -415,7 +417,7 @@ void swsusp_free(void)
}
nr_copy_pages = 0;
nr_meta_pages = 0;
- pagedir_nosave = NULL;
+ restore_pblist = NULL;
buffer = NULL;
}
@@ -490,15 +492,15 @@ asmlinkage int swsusp_save(void)
return -ENOMEM;
}
- pagedir_nosave = swsusp_alloc(nr_pages);
- if (!pagedir_nosave)
+ restore_pblist = swsusp_alloc(nr_pages);
+ if (!restore_pblist)
return -ENOMEM;
/* During allocating of suspend pagedir, new cold pages may appear.
* Kill them.
*/
drain_local_pages();
- copy_data_pages(pagedir_nosave);
+ copy_data_pages(restore_pblist);
/*
* End of critical section. From now on, we can write to memory,
@@ -580,13 +582,13 @@ int snapshot_read_next(struct snapshot_handle *handle, size_t count)
if (!handle->offset) {
init_header((struct swsusp_info *)buffer);
handle->buffer = buffer;
- handle->pbe = pagedir_nosave;
+ handle->pbe = restore_pblist;
}
if (handle->prev < handle->cur) {
if (handle->cur <= nr_meta_pages) {
handle->pbe = pack_orig_addresses(buffer, handle->pbe);
if (!handle->pbe)
- handle->pbe = pagedir_nosave;
+ handle->pbe = restore_pblist;
} else {
handle->buffer = (void *)handle->pbe->address;
handle->pbe = handle->pbe->next;
@@ -689,7 +691,7 @@ static int load_header(struct snapshot_handle *handle,
pblist = alloc_pagedir(info->image_pages, GFP_ATOMIC, 0);
if (!pblist)
return -ENOMEM;
- pagedir_nosave = pblist;
+ restore_pblist = pblist;
handle->pbe = pblist;
nr_copy_pages = info->image_pages;
nr_meta_pages = info->pages - info->image_pages - 1;
@@ -716,7 +718,7 @@ static inline struct pbe *unpack_orig_addresses(unsigned long *buf,
/**
* prepare_image - use metadata contained in the PBE list
- * pointed to by pagedir_nosave to mark the pages that will
+ * pointed to by restore_pblist to mark the pages that will
* be overwritten in the process of restoring the system
* memory state from the image ("unsafe" pages) and allocate
* memory for the image
@@ -741,7 +743,7 @@ static int prepare_image(struct snapshot_handle *handle)
unsigned int nr_pages = nr_copy_pages;
struct pbe *p, *pblist = NULL;
- p = pagedir_nosave;
+ p = restore_pblist;
error = mark_unsafe_pages(p);
if (!error) {
pblist = alloc_pagedir(nr_pages, GFP_ATOMIC, 1);
@@ -773,7 +775,7 @@ static int prepare_image(struct snapshot_handle *handle)
}
}
if (!error) {
- pagedir_nosave = pblist;
+ restore_pblist = pblist;
} else {
handle->pbe = NULL;
swsusp_free();
@@ -858,7 +860,7 @@ int snapshot_write_next(struct snapshot_handle *handle, size_t count)
error = prepare_image(handle);
if (error)
return error;
- handle->pbe = pagedir_nosave;
+ handle->pbe = restore_pblist;
handle->last_pbe = NULL;
handle->buffer = get_buffer(handle);
handle->sync_read = 0;