1 files changed, 0 insertions, 85 deletions
diff --git a/ANDROID_3.4.5/drivers/md/dm-zero.c b/ANDROID_3.4.5/drivers/md/dm-zero.c
deleted file mode 100644
index cc2b3cb8..00000000
--- a/ANDROID_3.4.5/drivers/md/dm-zero.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * Copyright (C) 2003 Christophe Saout <christophe@saout.de>
- *
- * This file is released under the GPL.
- */
-
-#include <linux/device-mapper.h>
-
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/bio.h>
-
-#define DM_MSG_PREFIX "zero"
-
-/*
- * Construct a dummy mapping that only returns zeros
- */
-static int zero_ctr(struct dm_target *ti, unsigned int argc, char **argv)
-{
-	if (argc != 0) {
-		ti->error = "No arguments required";
-		return -EINVAL;
-	}
-
-	/*
-	 * Silently drop discards, avoiding -EOPNOTSUPP.
-	 */
-	ti->num_discard_requests = 1;
-
-	return 0;
-}
-
-/*
- * Return zeros only on reads
- */
-static int zero_map(struct dm_target *ti, struct bio *bio,
-		      union map_info *map_context)
-{
-	switch(bio_rw(bio)) {
-	case READ:
-		zero_fill_bio(bio);
-		break;
-	case READA:
-		/* readahead of null bytes only wastes buffer cache */
-		return -EIO;
-	case WRITE:
-		/* writes get silently dropped */
-		break;
-	}
-
-	bio_endio(bio, 0);
-
-	/* accepted bio, don't make new request */
-	return DM_MAPIO_SUBMITTED;
-}
-
-static struct target_type zero_target = {
-	.name   = "zero",
-	.version = {1, 0, 0},
-	.module = THIS_MODULE,
-	.ctr    = zero_ctr,
-	.map    = zero_map,
-};
-
-static int __init dm_zero_init(void)
-{
-	int r = dm_register_target(&zero_target);
-
-	if (r < 0)
-		DMERR("register failed %d", r);
-
-	return r;
-}
-
-static void __exit dm_zero_exit(void)
-{
-	dm_unregister_target(&zero_target);
-}
-
-module_init(dm_zero_init)
-module_exit(dm_zero_exit)
-
-MODULE_AUTHOR("Christophe Saout <christophe@saout.de>");
-MODULE_DESCRIPTION(DM_NAME " dummy target returning zeros");
-MODULE_LICENSE("GPL");