staging: zsmalloc: zsmalloc memory allocation library
This patch creates a new memory allocation library named
zsmalloc.
NOTE: zsmalloc currently depends on SPARSEMEM for the MAX_PHYSMEM_BITS
value needed to determine the format of the object handle. There may
be a better way to do this. Feedback is welcome.
Signed-off-by: Nitin Gupta <ngupta@vflare.org>
Signed-off-by: Seth Jennings <sjenning@linux.vnet.ibm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/staging/zsmalloc/zsmalloc.h b/drivers/staging/zsmalloc/zsmalloc.h
new file mode 100644
index 0000000..949384e
--- /dev/null
+++ b/drivers/staging/zsmalloc/zsmalloc.h
@@ -0,0 +1,31 @@
+/*
+ * zsmalloc memory allocator
+ *
+ * Copyright (C) 2011 Nitin Gupta
+ *
+ * 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;
+
+struct zs_pool *zs_create_pool(const char *name, gfp_t flags);
+void zs_destroy_pool(struct zs_pool *pool);
+
+void *zs_malloc(struct zs_pool *pool, size_t size);
+void zs_free(struct zs_pool *pool, void *obj);
+
+void *zs_map_object(struct zs_pool *pool, void *handle);
+void zs_unmap_object(struct zs_pool *pool, void *handle);
+
+u64 zs_get_total_size_bytes(struct zs_pool *pool);
+
+#endif