Revert "BACKPORT: [UPSTREAM] mbcache2: reimplement mbcache"

This reverts commit 20ccd1e3ce3323d66ab29bf71cd75b337b2667a1.

1 files changed, 0 insertions, 50 deletions

diff --git a/include/linux/mbcache2.h b/include/linux/mbcache2.h
deleted file mode 100644
index b6f160ff2..000000000
--- a/include/linux/mbcache2.h
+++ /dev/null
@@ -1,50 +0,0 @@
-#ifndef _LINUX_MB2CACHE_H
-#define _LINUX_MB2CACHE_H
-
-#include <linux/hash.h>
-#include <linux/list_bl.h>
-#include <linux/list.h>
-#include <linux/atomic.h>
-#include <linux/fs.h>
-
-struct mb2_cache;
-
-struct mb2_cache_entry {
-	/* LRU list - protected by cache->c_lru_list_lock */
-	struct list_head	e_lru_list;
-	/* Hash table list - protected by bitlock in e_hash_list_head */
-	struct hlist_bl_node	e_hash_list;
-	atomic_t		e_refcnt;
-	/* Key in hash - stable during lifetime of the entry */
-	u32			e_key;
-	/* Block number of hashed block - stable during lifetime of the entry */
-	sector_t		e_block;
-	/* Head of hash list (for list bit lock) - stable */
-	struct hlist_bl_head	*e_hash_list_head;
-};
-
-struct mb2_cache *mb2_cache_create(int bucket_bits);
-void mb2_cache_destroy(struct mb2_cache *cache);
-
-int mb2_cache_entry_create(struct mb2_cache *cache, gfp_t mask, u32 key,
-			   sector_t block);
-void __mb2_cache_entry_free(struct mb2_cache_entry *entry);
-static inline int mb2_cache_entry_put(struct mb2_cache *cache,
-				      struct mb2_cache_entry *entry)
-{
-	if (!atomic_dec_and_test(&entry->e_refcnt))
-		return 0;
-	__mb2_cache_entry_free(entry);
-	return 1;
-}
-
-void mb2_cache_entry_delete_block(struct mb2_cache *cache, u32 key,
-				  sector_t block);
-struct mb2_cache_entry *mb2_cache_entry_find_first(struct mb2_cache *cache,
-						   u32 key);
-struct mb2_cache_entry *mb2_cache_entry_find_next(struct mb2_cache *cache,
-						  struct mb2_cache_entry *entry);
-void mb2_cache_entry_touch(struct mb2_cache *cache,
-			   struct mb2_cache_entry *entry);
-
-#endif	/* _LINUX_MB2CACHE_H */