diff options
| author | Eric Paris <eparis@redhat.com> | 2011-04-28 15:55:52 -0400 |
|---|---|---|
| committer | Eric Paris <eparis@redhat.com> | 2011-04-28 16:12:47 -0400 |
| commit | 5d30b10bd68df007e7ae21e77d1e0ce184b53040 (patch) | |
| tree | 61d97a80d0fac7c6dfd97db7040fedd75771adda /Documentation/flexible-arrays.txt | |
| parent | cb1e922fa104bb0bb3aa5fc6ca7f7e070f3b55e9 (diff) | |
flex_array: flex_array_prealloc takes a number of elements, not an end
Change flex_array_prealloc to take the number of elements for which space
should be allocated instead of the last (inclusive) element. Users
and documentation are updated accordingly. flex_arrays got introduced before
they had users. When folks started using it, they ended up needing a
different API than was coded up originally. This swaps over to the API that
folks apparently need.
Based-on-patch-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
Tested-by: Chris Richards <gizmo@giz-works.com>
Acked-by: Dave Hansen <dave@linux.vnet.ibm.com>
Cc: stable@kernel.org [2.6.38+]
Diffstat (limited to 'Documentation/flexible-arrays.txt')
| -rw-r--r-- | Documentation/flexible-arrays.txt | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/Documentation/flexible-arrays.txt b/Documentation/flexible-arrays.txt index cb8a3a00cc92..df904aec9904 100644 --- a/Documentation/flexible-arrays.txt +++ b/Documentation/flexible-arrays.txt @@ -66,10 +66,10 @@ trick is to ensure that any needed memory allocations are done before entering atomic context, using: int flex_array_prealloc(struct flex_array *array, unsigned int start, - unsigned int end, gfp_t flags); + unsigned int nr_elements, gfp_t flags); This function will ensure that memory for the elements indexed in the range -defined by start and end has been allocated. Thereafter, a +defined by start and nr_elements has been allocated. Thereafter, a flex_array_put() call on an element in that range is guaranteed not to block. |