staging: zsmalloc: add/fix function comment
Add/fix the comment. Signed-off-by: Minchan Kim <minchan@kernel.org> Acked-by: Nitin Gupta <ngupta@vflare.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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1 changed files with 11 additions and 6 deletions
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@ -566,13 +566,9 @@ EXPORT_SYMBOL_GPL(zs_destroy_pool);
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* zs_malloc - Allocate block of given size from pool.
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* @pool: pool to allocate from
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* @size: size of block to allocate
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* @page: page no. that holds the object
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* @offset: location of object within page
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*
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* On success, <page, offset> identifies block allocated
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* and 0 is returned. On failure, <page, offset> is set to
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* 0 and -ENOMEM is returned.
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*
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* On success, handle to the allocated object is returned,
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* otherwise NULL.
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* Allocation requests with size > ZS_MAX_ALLOC_SIZE will fail.
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*/
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void *zs_malloc(struct zs_pool *pool, size_t size)
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@ -667,6 +663,15 @@ void zs_free(struct zs_pool *pool, void *obj)
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}
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EXPORT_SYMBOL_GPL(zs_free);
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/**
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* zs_map_object - get address of allocated object from handle.
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* @pool: pool from which the object was allocated
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* @handle: handle returned from zs_malloc
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*
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* Before using an object allocated from zs_malloc, it must be mapped using
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* this function. When done with the object, it must be unmapped using
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* zs_unmap_object
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*/
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void *zs_map_object(struct zs_pool *pool, void *handle)
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{
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struct page *page;
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