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-rw-r--r--include/linux/zsmalloc.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/include/linux/zsmalloc.h b/include/linux/zsmalloc.h
new file mode 100644
index 000000000000..f3ccff2d966c
--- /dev/null
+++ b/include/linux/zsmalloc.h
@@ -0,0 +1,51 @@
+/*
+ * zsmalloc memory allocator
+ *
+ * Copyright (C) 2011 Nitin Gupta
+ * Copyright (C) 2012, 2013 Minchan Kim
+ *
+ * This code is released using a dual license strategy: BSD/GPL
+ * You can choose the license that better fits your requirements.
+ *
+ * Released under the terms of 3-clause BSD License
+ * Released under the terms of GNU General Public License Version 2.0
+ */
+
+#ifndef _ZS_MALLOC_H_
+#define _ZS_MALLOC_H_
+
+#include <linux/types.h>
+
+struct zs_pool_stats {
+ /* How many pages were migrated (freed) */
+ atomic_long_t pages_compacted;
+};
+
+struct zs_pool;
+
+struct zs_pool *zs_create_pool(const char *name);
+void zs_destroy_pool(struct zs_pool *pool);
+
+unsigned long zs_malloc(struct zs_pool *pool, size_t size, gfp_t flags,
+ const int nid);
+void zs_free(struct zs_pool *pool, unsigned long obj);
+
+size_t zs_huge_class_size(struct zs_pool *pool);
+
+unsigned long zs_get_total_pages(struct zs_pool *pool);
+unsigned long zs_compact(struct zs_pool *pool);
+
+unsigned int zs_lookup_class_index(struct zs_pool *pool, unsigned int size);
+
+void zs_pool_stats(struct zs_pool *pool, struct zs_pool_stats *stats);
+
+void *zs_obj_read_begin(struct zs_pool *pool, unsigned long handle,
+ void *local_copy);
+void zs_obj_read_end(struct zs_pool *pool, unsigned long handle,
+ void *handle_mem);
+void zs_obj_write(struct zs_pool *pool, unsigned long handle,
+ void *handle_mem, size_t mem_len);
+
+extern const struct movable_operations zsmalloc_mops;
+
+#endif