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-rw-r--r--kernel/power/tuxonice_extent.c144
1 files changed, 0 insertions, 144 deletions
diff --git a/kernel/power/tuxonice_extent.c b/kernel/power/tuxonice_extent.c
deleted file mode 100644
index 3b558b220..000000000
--- a/kernel/power/tuxonice_extent.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * kernel/power/tuxonice_extent.c
- *
- * Copyright (C) 2003-2015 Nigel Cunningham (nigel at nigelcunningham com au)
- *
- * Distributed under GPLv2.
- *
- * These functions encapsulate the manipulation of storage metadata.
- */
-
-#include <linux/suspend.h>
-#include "tuxonice_modules.h"
-#include "tuxonice_extent.h"
-#include "tuxonice_alloc.h"
-#include "tuxonice_ui.h"
-#include "tuxonice.h"
-
-/**
- * toi_get_extent - return a free extent
- *
- * May fail, returning NULL instead.
- **/
-static struct hibernate_extent *toi_get_extent(void)
-{
- return (struct hibernate_extent *) toi_kzalloc(2,
- sizeof(struct hibernate_extent), TOI_ATOMIC_GFP);
-}
-
-/**
- * toi_put_extent_chain - free a chain of extents starting from value 'from'
- * @chain: Chain to free.
- *
- * Note that 'from' is an extent value, and may be part way through an extent.
- * In this case, the extent should be truncated (if necessary) and following
- * extents freed.
- **/
-void toi_put_extent_chain_from(struct hibernate_extent_chain *chain, unsigned long from)
-{
- struct hibernate_extent *this;
-
- this = chain->first;
-
- while (this) {
- struct hibernate_extent *next = this->next;
-
- // Delete the whole extent?
- if (this->start >= from) {
- chain->size -= (this->end - this->start + 1);
- if (chain->first == this)
- chain->first = next;
- if (chain->last_touched == this)
- chain->last_touched = NULL;
- if (chain->current_extent == this)
- chain->current_extent = NULL;
- toi_kfree(2, this, sizeof(*this));
- chain->num_extents--;
- } else if (this->end >= from) {
- // Delete part of the extent
- chain->size -= (this->end - from + 1);
- this->start = from;
- }
- this = next;
- }
-}
-
-/**
- * toi_put_extent_chain - free a whole chain of extents
- * @chain: Chain to free.
- **/
-void toi_put_extent_chain(struct hibernate_extent_chain *chain)
-{
- toi_put_extent_chain_from(chain, 0);
-}
-
-/**
- * toi_add_to_extent_chain - add an extent to an existing chain
- * @chain: Chain to which the extend should be added
- * @start: Start of the extent (first physical block)
- * @end: End of the extent (last physical block)
- *
- * The chain information is updated if the insertion is successful.
- **/
-int toi_add_to_extent_chain(struct hibernate_extent_chain *chain,
- unsigned long start, unsigned long end)
-{
- struct hibernate_extent *new_ext = NULL, *cur_ext = NULL;
-
- toi_message(TOI_IO, TOI_VERBOSE, 0,
- "Adding extent %lu-%lu to chain %p.\n", start, end, chain);
-
- /* Find the right place in the chain */
- if (chain->last_touched && chain->last_touched->start < start)
- cur_ext = chain->last_touched;
- else if (chain->first && chain->first->start < start)
- cur_ext = chain->first;
-
- if (cur_ext) {
- while (cur_ext->next && cur_ext->next->start < start)
- cur_ext = cur_ext->next;
-
- if (cur_ext->end == (start - 1)) {
- struct hibernate_extent *next_ext = cur_ext->next;
- cur_ext->end = end;
-
- /* Merge with the following one? */
- if (next_ext && cur_ext->end + 1 == next_ext->start) {
- cur_ext->end = next_ext->end;
- cur_ext->next = next_ext->next;
- toi_kfree(2, next_ext, sizeof(*next_ext));
- chain->num_extents--;
- }
-
- chain->last_touched = cur_ext;
- chain->size += (end - start + 1);
-
- return 0;
- }
- }
-
- new_ext = toi_get_extent();
- if (!new_ext) {
- printk(KERN_INFO "Error unable to append a new extent to the "
- "chain.\n");
- return -ENOMEM;
- }
-
- chain->num_extents++;
- chain->size += (end - start + 1);
- new_ext->start = start;
- new_ext->end = end;
-
- chain->last_touched = new_ext;
-
- if (cur_ext) {
- new_ext->next = cur_ext->next;
- cur_ext->next = new_ext;
- } else {
- if (chain->first)
- new_ext->next = chain->first;
- chain->first = new_ext;
- }
-
- return 0;
-}