1 files changed, 0 insertions, 153 deletions
diff --git a/ANDROID_3.4.5/drivers/md/dm-snap-transient.c b/ANDROID_3.4.5/drivers/md/dm-snap-transient.c
deleted file mode 100644
index 1ce9a258..00000000
--- a/ANDROID_3.4.5/drivers/md/dm-snap-transient.c
+++ /dev/null
@@ -1,153 +0,0 @@
-/*
- * Copyright (C) 2001-2002 Sistina Software (UK) Limited.
- * Copyright (C) 2006-2008 Red Hat GmbH
- *
- * This file is released under the GPL.
- */
-
-#include "dm-exception-store.h"
-
-#include <linux/mm.h>
-#include <linux/pagemap.h>
-#include <linux/vmalloc.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include <linux/dm-io.h>
-
-#define DM_MSG_PREFIX "transient snapshot"
-
-/*-----------------------------------------------------------------
- * Implementation of the store for non-persistent snapshots.
- *---------------------------------------------------------------*/
-struct transient_c {
-	sector_t next_free;
-};
-
-static void transient_dtr(struct dm_exception_store *store)
-{
-	kfree(store->context);
-}
-
-static int transient_read_metadata(struct dm_exception_store *store,
-				   int (*callback)(void *callback_context,
-						   chunk_t old, chunk_t new),
-				   void *callback_context)
-{
-	return 0;
-}
-
-static int transient_prepare_exception(struct dm_exception_store *store,
-				       struct dm_exception *e)
-{
-	struct transient_c *tc = store->context;
-	sector_t size = get_dev_size(dm_snap_cow(store->snap)->bdev);
-
-	if (size < (tc->next_free + store->chunk_size))
-		return -1;
-
-	e->new_chunk = sector_to_chunk(store, tc->next_free);
-	tc->next_free += store->chunk_size;
-
-	return 0;
-}
-
-static void transient_commit_exception(struct dm_exception_store *store,
-				       struct dm_exception *e,
-				       void (*callback) (void *, int success),
-				       void *callback_context)
-{
-	/* Just succeed */
-	callback(callback_context, 1);
-}
-
-static void transient_usage(struct dm_exception_store *store,
-			    sector_t *total_sectors,
-			    sector_t *sectors_allocated,
-			    sector_t *metadata_sectors)
-{
-	*sectors_allocated = ((struct transient_c *) store->context)->next_free;
-	*total_sectors = get_dev_size(dm_snap_cow(store->snap)->bdev);
-	*metadata_sectors = 0;
-}
-
-static int transient_ctr(struct dm_exception_store *store,
-			 unsigned argc, char **argv)
-{
-	struct transient_c *tc;
-
-	tc = kmalloc(sizeof(struct transient_c), GFP_KERNEL);
-	if (!tc)
-		return -ENOMEM;
-
-	tc->next_free = 0;
-	store->context = tc;
-
-	return 0;
-}
-
-static unsigned transient_status(struct dm_exception_store *store,
-				 status_type_t status, char *result,
-				 unsigned maxlen)
-{
-	unsigned sz = 0;
-
-	switch (status) {
-	case STATUSTYPE_INFO:
-		break;
-	case STATUSTYPE_TABLE:
-		DMEMIT(" N %llu", (unsigned long long)store->chunk_size);
-	}
-
-	return sz;
-}
-
-static struct dm_exception_store_type _transient_type = {
-	.name = "transient",
-	.module = THIS_MODULE,
-	.ctr = transient_ctr,
-	.dtr = transient_dtr,
-	.read_metadata = transient_read_metadata,
-	.prepare_exception = transient_prepare_exception,
-	.commit_exception = transient_commit_exception,
-	.usage = transient_usage,
-	.status = transient_status,
-};
-
-static struct dm_exception_store_type _transient_compat_type = {
-	.name = "N",
-	.module = THIS_MODULE,
-	.ctr = transient_ctr,
-	.dtr = transient_dtr,
-	.read_metadata = transient_read_metadata,
-	.prepare_exception = transient_prepare_exception,
-	.commit_exception = transient_commit_exception,
-	.usage = transient_usage,
-	.status = transient_status,
-};
-
-int dm_transient_snapshot_init(void)
-{
-	int r;
-
-	r = dm_exception_store_type_register(&_transient_type);
-	if (r) {
-		DMWARN("Unable to register transient exception store type");
-		return r;
-	}
-
-	r = dm_exception_store_type_register(&_transient_compat_type);
-	if (r) {
-		DMWARN("Unable to register old-style transient "
-		       "exception store type");
-		dm_exception_store_type_unregister(&_transient_type);
-		return r;
-	}
-
-	return r;
-}
-
-void dm_transient_snapshot_exit(void)
-{
-	dm_exception_store_type_unregister(&_transient_type);
-	dm_exception_store_type_unregister(&_transient_compat_type);
-}