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@@ -14,11 +14,13 @@
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#include <linux/genalloc.h>
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-/*
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- * Create a new special memory pool.
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- *
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+/**
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+ * gen_pool_create - create a new special memory pool
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* @min_alloc_order: log base 2 of number of bytes each bitmap bit represents
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* @nid: node id of the node the pool structure should be allocated on, or -1
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+ *
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+ * Create a new special memory pool that can be used to manage special purpose
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+ * memory not managed by the regular kmalloc/kfree interface.
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*/
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struct gen_pool *gen_pool_create(int min_alloc_order, int nid)
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{
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@@ -34,15 +36,15 @@ struct gen_pool *gen_pool_create(int min_alloc_order, int nid)
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}
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EXPORT_SYMBOL(gen_pool_create);
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-
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-/*
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- * Add a new chunk of memory to the specified pool.
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- *
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+/**
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+ * gen_pool_add - add a new chunk of special memory to the pool
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* @pool: pool to add new memory chunk to
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* @addr: starting address of memory chunk to add to pool
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* @size: size in bytes of the memory chunk to add to pool
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* @nid: node id of the node the chunk structure and bitmap should be
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* allocated on, or -1
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+ *
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+ * Add a new chunk of special memory to the specified pool.
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*/
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int gen_pool_add(struct gen_pool *pool, unsigned long addr, size_t size,
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int nid)
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@@ -69,11 +71,12 @@ int gen_pool_add(struct gen_pool *pool, unsigned long addr, size_t size,
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}
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EXPORT_SYMBOL(gen_pool_add);
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-
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-/*
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- * Destroy a memory pool. Verifies that there are no outstanding allocations.
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- *
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+/**
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+ * gen_pool_destroy - destroy a special memory pool
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* @pool: pool to destroy
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+ *
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+ * Destroy the specified special memory pool. Verifies that there are no
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+ * outstanding allocations.
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*/
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void gen_pool_destroy(struct gen_pool *pool)
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{
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@@ -99,13 +102,13 @@ void gen_pool_destroy(struct gen_pool *pool)
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}
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EXPORT_SYMBOL(gen_pool_destroy);
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-
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-/*
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- * Allocate the requested number of bytes from the specified pool.
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- * Uses a first-fit algorithm.
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- *
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+/**
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+ * gen_pool_alloc - allocate special memory from the pool
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* @pool: pool to allocate from
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* @size: number of bytes to allocate from the pool
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+ *
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+ * Allocate the requested number of bytes from the specified pool.
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+ * Uses a first-fit algorithm.
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*/
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unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
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{
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@@ -157,13 +160,13 @@ unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
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}
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EXPORT_SYMBOL(gen_pool_alloc);
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-
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-/*
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- * Free the specified memory back to the specified pool.
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- *
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+/**
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+ * gen_pool_free - free allocated special memory back to the pool
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* @pool: pool to free to
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* @addr: starting address of memory to free back to pool
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* @size: size in bytes of memory to free
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+ *
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+ * Free previously allocated special memory back to the specified pool.
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*/
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void gen_pool_free(struct gen_pool *pool, unsigned long addr, size_t size)
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{
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