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f629689c7b
(cherry-pick from commit 396b7fd6f9)
The existing comments are using an odd style. Fixed them up to adhere
to the StyleGuide. No code changes.
Bug: 25951511
Change-Id: Ica40c276260a4a4fb573185929d804fa3685e1b0
Signed-off-by: Sara Bird <sara.bird.iar@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
44 lines
1.1 KiB
C
44 lines
1.1 KiB
C
/*
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* zsmalloc memory allocator
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*
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* Copyright (C) 2011 Nitin Gupta
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* Copyright (C) 2012, 2013 Minchan Kim
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*
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* This code is released using a dual license strategy: BSD/GPL
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* You can choose the license that better fits your requirements.
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*
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* Released under the terms of 3-clause BSD License
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* Released under the terms of GNU General Public License Version 2.0
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*/
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#ifndef _ZS_MALLOC_H_
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#define _ZS_MALLOC_H_
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#include <linux/types.h>
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/*
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* zsmalloc mapping modes
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*
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* NOTE: These only make a difference when a mapped object spans pages
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*/
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enum zs_mapmode {
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ZS_MM_RW, /* normal read-write mapping */
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ZS_MM_RO, /* read-only (no copy-out at unmap time) */
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ZS_MM_WO /* write-only (no copy-in at map time) */
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};
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struct zs_pool;
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struct zs_pool *zs_create_pool(gfp_t flags);
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void zs_destroy_pool(struct zs_pool *pool);
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unsigned long zs_malloc(struct zs_pool *pool, size_t size);
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void zs_free(struct zs_pool *pool, unsigned long obj);
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void *zs_map_object(struct zs_pool *pool, unsigned long handle,
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enum zs_mapmode mm);
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void zs_unmap_object(struct zs_pool *pool, unsigned long handle);
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u64 zs_get_total_size_bytes(struct zs_pool *pool);
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#endif
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