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-rw-r--r--kernel/power/swsusp.c130
1 files changed, 0 insertions, 130 deletions
diff --git a/kernel/power/swsusp.c b/kernel/power/swsusp.c
index 6a07f4dbf2f8..5b3601bd1893 100644
--- a/kernel/power/swsusp.c
+++ b/kernel/power/swsusp.c
@@ -56,133 +56,3 @@
#include "power.h"
int in_suspend __nosavedata = 0;
-
-/**
- * The following functions are used for tracing the allocated
- * swap pages, so that they can be freed in case of an error.
- */
-
-struct swsusp_extent {
- struct rb_node node;
- unsigned long start;
- unsigned long end;
-};
-
-static struct rb_root swsusp_extents = RB_ROOT;
-
-static int swsusp_extents_insert(unsigned long swap_offset)
-{
- struct rb_node **new = &(swsusp_extents.rb_node);
- struct rb_node *parent = NULL;
- struct swsusp_extent *ext;
-
- /* Figure out where to put the new node */
- while (*new) {
- ext = container_of(*new, struct swsusp_extent, node);
- parent = *new;
- if (swap_offset < ext->start) {
- /* Try to merge */
- if (swap_offset == ext->start - 1) {
- ext->start--;
- return 0;
- }
- new = &((*new)->rb_left);
- } else if (swap_offset > ext->end) {
- /* Try to merge */
- if (swap_offset == ext->end + 1) {
- ext->end++;
- return 0;
- }
- new = &((*new)->rb_right);
- } else {
- /* It already is in the tree */
- return -EINVAL;
- }
- }
- /* Add the new node and rebalance the tree. */
- ext = kzalloc(sizeof(struct swsusp_extent), GFP_KERNEL);
- if (!ext)
- return -ENOMEM;
-
- ext->start = swap_offset;
- ext->end = swap_offset;
- rb_link_node(&ext->node, parent, new);
- rb_insert_color(&ext->node, &swsusp_extents);
- return 0;
-}
-
-/**
- * alloc_swapdev_block - allocate a swap page and register that it has
- * been allocated, so that it can be freed in case of an error.
- */
-
-sector_t alloc_swapdev_block(int swap)
-{
- unsigned long offset;
-
- offset = swp_offset(get_swap_page_of_type(swap));
- if (offset) {
- if (swsusp_extents_insert(offset))
- swap_free(swp_entry(swap, offset));
- else
- return swapdev_block(swap, offset);
- }
- return 0;
-}
-
-/**
- * free_all_swap_pages - free swap pages allocated for saving image data.
- * It also frees the extents used to register which swap entres had been
- * allocated.
- */
-
-void free_all_swap_pages(int swap)
-{
- struct rb_node *node;
-
- while ((node = swsusp_extents.rb_node)) {
- struct swsusp_extent *ext;
- unsigned long offset;
-
- ext = container_of(node, struct swsusp_extent, node);
- rb_erase(node, &swsusp_extents);
- for (offset = ext->start; offset <= ext->end; offset++)
- swap_free(swp_entry(swap, offset));
-
- kfree(ext);
- }
-}
-
-int swsusp_swap_in_use(void)
-{
- return (swsusp_extents.rb_node != NULL);
-}
-
-/**
- * swsusp_show_speed - print the time elapsed between two events represented by
- * @start and @stop
- *
- * @nr_pages - number of pages processed between @start and @stop
- * @msg - introductory message to print
- */
-
-void swsusp_show_speed(struct timeval *start, struct timeval *stop,
- unsigned nr_pages, char *msg)
-{
- s64 elapsed_centisecs64;
- int centisecs;
- int k;
- int kps;
-
- elapsed_centisecs64 = timeval_to_ns(stop) - timeval_to_ns(start);
- do_div(elapsed_centisecs64, NSEC_PER_SEC / 100);
- centisecs = elapsed_centisecs64;
- if (centisecs == 0)
- centisecs = 1; /* avoid div-by-zero */
- k = nr_pages * (PAGE_SIZE / 1024);
- kps = (k * 100) / centisecs;
- printk(KERN_INFO "PM: %s %d kbytes in %d.%02d seconds (%d.%02d MB/s)\n",
- msg, k,
- centisecs / 100, centisecs % 100,
- kps / 1000, (kps % 1000) / 10);
-}