flex_array: add missing kerneldoc annotations

Add kerneldoc annotations for function formals of type struct flex_array
and gfp_t which are currently lacking.
Signed-off-by: NDavid Rientjes <rientjes@google.com>
Cc: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

lib/flex_array.c

@@ -46,6 +46,7 @@ static inline int elements_fit_in_base(struct flex_array *fa)
  * flex_array_alloc - allocate a new flexible array
  * @element_size:	the size of individual elements in the array
  * @total:		total number of elements that this should hold
+ * @flags:		page allocation flags to use for base array
  *
  * Note: all locking must be provided by the caller.
  *
@@ -111,6 +112,7 @@ static int fa_element_to_part_nr(struct flex_array *fa,
 
 /**
  * flex_array_free_parts - just free the second-level pages
+ * @fa:		the flex array from which to free parts
  *
  * This is to be used in cases where the base 'struct flex_array'
  * has been statically allocated and should not be free.
@@ -159,9 +161,12 @@ __fa_get_part(struct flex_array *fa, int part_nr, gfp_t flags)
 
 /**
  * flex_array_put - copy data into the array at @element_nr
- * @src:	address of data to copy into the array
+ * @fa:		the flex array to copy data into
  * @element_nr:	index of the position in which to insert
  * 		the new element.
+ * @src:	address of data to copy into the array
+ * @flags:	page allocation flags to use for array expansion
+ *
  *
  * Note that this *copies* the contents of @src into
  * the array.  If you are trying to store an array of
@@ -192,6 +197,7 @@ int flex_array_put(struct flex_array *fa, unsigned int element_nr, void *src,
 
 /**
  * flex_array_clear - clear element in array at @element_nr
+ * @fa:		the flex array of the element.
  * @element_nr:	index of the position to clear.
  *
  * Locking must be provided by the caller.
@@ -218,8 +224,10 @@ int flex_array_clear(struct flex_array *fa, unsigned int element_nr)
 
 /**
  * flex_array_prealloc - guarantee that array space exists
+ * @fa:		the flex array for which to preallocate parts
  * @start:	index of first array element for which space is allocated
  * @end:	index of last (inclusive) element for which space is allocated
+ * @flags:	page allocation flags
  *
  * This will guarantee that no future calls to flex_array_put()
  * will allocate memory.  It can be used if you are expecting to
@@ -252,6 +260,7 @@ int flex_array_prealloc(struct flex_array *fa, unsigned int start,
 
 /**
  * flex_array_get - pull data back out of the array
+ * @fa:		the flex array from which to extract data
  * @element_nr:	index of the element to fetch from the array
  *
  * Returns a pointer to the data at index @element_nr.  Note
@@ -289,6 +298,7 @@ static int part_is_free(struct flex_array_part *part)
 
 /**
  * flex_array_shrink - free unused second-level pages
+ * @fa:		the flex array to shrink
  *
  * Frees all second-level pages that consist solely of unused
  * elements.  Returns the number of pages freed.