| 1 | /* |
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| 2 | * zsmalloc memory allocator |
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| 3 | * |
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| 4 | * Copyright (C) 2011 Nitin Gupta |
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| 5 | * Copyright (C) 2012, 2013 Minchan Kim |
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| 6 | * |
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| 7 | * This code is released using a dual license strategy: BSD/GPL |
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| 8 | * You can choose the license that better fits your requirements. |
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| 9 | * |
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| 10 | * Released under the terms of 3-clause BSD License |
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| 11 | * Released under the terms of GNU General Public License Version 2.0 |
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| 12 | */ |
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| 13 | |
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| 14 | #ifndef _ZS_MALLOC_H_ |
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| 15 | #define _ZS_MALLOC_H_ |
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| 16 | |
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| 17 | #include <linux/types.h> |
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| 18 | |
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| 19 | struct zs_pool_stats { |
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| 20 | /* How many pages were migrated (freed) */ |
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| 21 | atomic_long_t pages_compacted; |
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| 22 | }; |
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| 23 | |
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| 24 | struct zs_pool; |
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| 25 | |
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| 26 | struct zs_pool *zs_create_pool(const char *name); |
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| 27 | void zs_destroy_pool(struct zs_pool *pool); |
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| 28 | |
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| 29 | unsigned long zs_malloc(struct zs_pool *pool, size_t size, gfp_t flags, |
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| 30 | const int nid); |
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| 31 | void zs_free(struct zs_pool *pool, unsigned long obj); |
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| 32 | |
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| 33 | size_t zs_huge_class_size(struct zs_pool *pool); |
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| 34 | |
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| 35 | unsigned long zs_get_total_pages(struct zs_pool *pool); |
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| 36 | unsigned long zs_compact(struct zs_pool *pool); |
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| 37 | |
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| 38 | unsigned int zs_lookup_class_index(struct zs_pool *pool, unsigned int size); |
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| 39 | |
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| 40 | void zs_pool_stats(struct zs_pool *pool, struct zs_pool_stats *stats); |
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| 41 | |
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| 42 | void *zs_obj_read_begin(struct zs_pool *pool, unsigned long handle, |
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| 43 | void *local_copy); |
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| 44 | void zs_obj_read_end(struct zs_pool *pool, unsigned long handle, |
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| 45 | void *handle_mem); |
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| 46 | void zs_obj_write(struct zs_pool *pool, unsigned long handle, |
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| 47 | void *handle_mem, size_t mem_len); |
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| 48 | |
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| 49 | #endif |
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| 50 | |
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