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-rw-r--r--lib/genalloc.c43
1 files changed, 23 insertions, 20 deletions
diff --git a/lib/genalloc.c b/lib/genalloc.c
index 7d16ecabba9..75ae68ce03e 100644
--- a/lib/genalloc.c
+++ b/lib/genalloc.c
@@ -14,11 +14,13 @@
#include <linux/genalloc.h>
-/*
- * Create a new special memory pool.
- *
+/**
+ * gen_pool_create - create a new special memory pool
* @min_alloc_order: log base 2 of number of bytes each bitmap bit represents
* @nid: node id of the node the pool structure should be allocated on, or -1
+ *
+ * Create a new special memory pool that can be used to manage special purpose
+ * memory not managed by the regular kmalloc/kfree interface.
*/
struct gen_pool *gen_pool_create(int min_alloc_order, int nid)
{
@@ -34,15 +36,15 @@ struct gen_pool *gen_pool_create(int min_alloc_order, int nid)
}
EXPORT_SYMBOL(gen_pool_create);
-
-/*
- * Add a new chunk of memory to the specified pool.
- *
+/**
+ * gen_pool_add - add a new chunk of special memory to the pool
* @pool: pool to add new memory chunk to
* @addr: starting address of memory chunk to add to pool
* @size: size in bytes of the memory chunk to add to pool
* @nid: node id of the node the chunk structure and bitmap should be
* allocated on, or -1
+ *
+ * Add a new chunk of special memory to the specified pool.
*/
int gen_pool_add(struct gen_pool *pool, unsigned long addr, size_t size,
int nid)
@@ -69,11 +71,12 @@ int gen_pool_add(struct gen_pool *pool, unsigned long addr, size_t size,
}
EXPORT_SYMBOL(gen_pool_add);
-
-/*
- * Destroy a memory pool. Verifies that there are no outstanding allocations.
- *
+/**
+ * gen_pool_destroy - destroy a special memory pool
* @pool: pool to destroy
+ *
+ * Destroy the specified special memory pool. Verifies that there are no
+ * outstanding allocations.
*/
void gen_pool_destroy(struct gen_pool *pool)
{
@@ -99,13 +102,13 @@ void gen_pool_destroy(struct gen_pool *pool)
}
EXPORT_SYMBOL(gen_pool_destroy);
-
-/*
- * Allocate the requested number of bytes from the specified pool.
- * Uses a first-fit algorithm.
- *
+/**
+ * gen_pool_alloc - allocate special memory from the pool
* @pool: pool to allocate from
* @size: number of bytes to allocate from the pool
+ *
+ * Allocate the requested number of bytes from the specified pool.
+ * Uses a first-fit algorithm.
*/
unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
{
@@ -157,13 +160,13 @@ unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
}
EXPORT_SYMBOL(gen_pool_alloc);
-
-/*
- * Free the specified memory back to the specified pool.
- *
+/**
+ * gen_pool_free - free allocated special memory back to the pool
* @pool: pool to free to
* @addr: starting address of memory to free back to pool
* @size: size in bytes of memory to free
+ *
+ * Free previously allocated special memory back to the specified pool.
*/
void gen_pool_free(struct gen_pool *pool, unsigned long addr, size_t size)
{